I_AMP.sch 24.5 KB
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EESchema Schematic File Version 2
LIBS:74xgxx
LIBS:74xx
LIBS:ac-dc
LIBS:actel
LIBS:adc-dac
LIBS:Altera
LIBS:analog_devices
LIBS:analog_switches
LIBS:atmel
LIBS:audio
LIBS:brooktre
LIBS:cmos4000
LIBS:cmos_ieee
LIBS:conn
LIBS:contrib
LIBS:cypress
LIBS:dc-dc
LIBS:device
LIBS:digital-audio
LIBS:diode
LIBS:display
LIBS:dsp
LIBS:elec-unifil
LIBS:ESD_Protection
LIBS:ftdi
LIBS:gennum
LIBS:graphic
LIBS:hc11
LIBS:intel
LIBS:interface
LIBS:ir
LIBS:Lattice
LIBS:linear
LIBS:logo
LIBS:maxim
LIBS:memory
LIBS:microchip
LIBS:microchip_dspic33dsc
LIBS:microchip_pic10mcu
LIBS:microchip_pic12mcu
LIBS:microchip_pic16mcu
LIBS:microchip_pic18mcu
LIBS:microchip_pic32mcu
LIBS:microcontrollers
LIBS:motor_drivers
LIBS:motorola
LIBS:msp430
LIBS:nordicsemi
LIBS:nxp_armmcu
LIBS:onsemi
LIBS:opto
LIBS:Oscillators
LIBS:philips
LIBS:power
LIBS:powerint
LIBS:Power_Management
LIBS:references
LIBS:regul
LIBS:relays
LIBS:rfcom
LIBS:sensors
LIBS:silabs
LIBS:siliconi
LIBS:stm8
LIBS:stm32
LIBS:supertex
LIBS:switches
LIBS:texas
LIBS:transf
LIBS:transistors
LIBS:ttl_ieee
LIBS:valves
LIBS:video
LIBS:w_analog
LIBS:w_connectors
LIBS:w_device
LIBS:w_logic
LIBS:w_memory
LIBS:w_microcontrollers
LIBS:w_opto
LIBS:Worldsemi
LIBS:w_relay
LIBS:w_rtx
LIBS:w_transistor
LIBS:w_vacuum
LIBS:Xicor
LIBS:xilinx
LIBS:Zilog
LIBS:I_AMP-cache
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
96
Title "Current Sensor for Materials Analysis"
97
Date "2017-12-15"
98 99
Rev "1"
Comp "LAPMA - UFRGS"
100 101 102 103
Comment1 "All resistors are 1/8W, except R1 and R2"
Comment2 "There's a saturation indicator for output higher than 5V"
Comment3 "The gain adjust must be set for a range in 0 to 5V output voltage"
Comment4 "Designed by Alisson Claudino"
104 105
$EndDescr
$Comp
106
L GND #PWR1
107
U 1 1 5A26D72D
108 109 110 111 112 113
P 3200 3300
F 0 "#PWR1" H 3200 3050 50  0001 C CNN
F 1 "GND" H 3200 3150 50  0000 C CNN
F 2 "" H 3200 3300 50  0000 C CNN
F 3 "" H 3200 3300 50  0000 C CNN
	1    3200 3300
114 115
	1    0    0    -1  
$EndComp
116
Text Notes 3000 3000 0    60   ~ 0
117
5W
118
Text Notes 3300 3000 0    60   ~ 0
119
5W
120 121
NoConn ~ 5600 5300
NoConn ~ 5600 4700
122 123 124
$Comp
L R R1
U 1 1 5A270FC5
125 126 127 128 129 130
P 3200 3050
F 0 "R1" V 3280 3050 50  0000 C CNN
F 1 "2R2" V 3200 3050 50  0000 C CNN
F 2 "" V 3130 3050 50  0000 C CNN
F 3 "" H 3200 3050 50  0000 C CNN
	1    3200 3050
131 132 133 134 135
	1    0    0    -1  
$EndComp
$Comp
L R R2
U 1 1 5A270FC6
136 137 138 139 140 141
P 3500 3050
F 0 "R2" V 3580 3050 50  0000 C CNN
F 1 "2R2" V 3500 3050 50  0000 C CNN
F 2 "" V 3430 3050 50  0000 C CNN
F 3 "" H 3500 3050 50  0000 C CNN
	1    3500 3050
142 143 144
	1    0    0    -1  
$EndComp
$Comp
145
L R R5
146
U 1 1 5A270FC7
147 148 149 150 151 152
P 3050 4800
F 0 "R5" V 3130 4800 50  0000 C CNN
F 1 "20k" V 3050 4800 50  0000 C CNN
F 2 "" V 2980 4800 50  0000 C CNN
F 3 "" H 3050 4800 50  0000 C CNN
	1    3050 4800
153 154 155
	0    1    1    0   
$EndComp
$Comp
156
L GND #PWR2
157
U 1 1 5A270FC9
158 159 160 161 162 163
P 3200 3300
F 0 "#PWR2" H 3200 3050 50  0001 C CNN
F 1 "GND" H 3200 3150 50  0000 C CNN
F 2 "" H 3200 3300 50  0000 C CNN
F 3 "" H 3200 3300 50  0000 C CNN
	1    3200 3300
164 165 166 167 168
	1    0    0    -1  
$EndComp
$Comp
L D_Small D1
U 1 1 5A270FCC
169 170 171 172 173 174
P 3650 4150
F 0 "D1" H 3600 4230 50  0000 L CNN
F 1 "1n4148" H 3500 4070 50  0000 L CNN
F 2 "" V 3650 4150 50  0000 C CNN
F 3 "" V 3650 4150 50  0000 C CNN
	1    3650 4150
175 176 177
	1    0    0    -1  
$EndComp
$Comp
178
L R R6
179
U 1 1 5A270FCD
180 181 182 183 184 185
P 3650 3950
F 0 "R6" V 3730 3950 50  0000 C CNN
F 1 "20k" V 3650 3950 50  0000 C CNN
F 2 "" V 3580 3950 50  0000 C CNN
F 3 "" H 3650 3950 50  0000 C CNN
	1    3650 3950
186 187 188
	0    1    -1   0   
$EndComp
$Comp
189
L GND #PWR3
190
U 1 1 5A270FCE
191 192 193 194 195 196
P 3250 5050
F 0 "#PWR3" H 3250 4800 50  0001 C CNN
F 1 "GND" H 3250 4900 50  0000 C CNN
F 2 "" H 3250 5050 50  0000 C CNN
F 3 "" H 3250 5050 50  0000 C CNN
	1    3250 5050
197 198
	1    0    0    -1  
$EndComp
199
Text Notes 3000 3000 0    60   ~ 0
200
5W
201
Text Notes 3300 3000 0    60   ~ 0
202
5W
203 204
NoConn ~ 5600 5300
NoConn ~ 5600 4700
205
$Comp
206
L R R14
207
U 1 1 5A270FD6
208 209 210 211 212 213
P 6850 2350
F 0 "R14" V 6930 2350 50  0000 C CNN
F 1 "10k" V 6850 2350 50  0000 C CNN
F 2 "" V 6780 2350 50  0000 C CNN
F 3 "" H 6850 2350 50  0000 C CNN
	1    6850 2350
214 215 216
	0    1    1    0   
$EndComp
$Comp
217
L C C8
218
U 1 1 5A270FD7
219 220 221 222 223 224
P 7050 2550
F 0 "C8" H 7075 2650 50  0000 L CNN
F 1 "220n" H 6850 2450 50  0000 L CNN
F 2 "" H 7088 2400 50  0000 C CNN
F 3 "" H 7050 2550 50  0000 C CNN
	1    7050 2550
225 226 227
	1    0    0    -1  
$EndComp
$Comp
228
L R R15
229
U 1 1 5A270FD8
230 231 232 233 234 235
P 7250 2550
F 0 "R15" V 7330 2550 50  0000 C CNN
F 1 "RX" V 7250 2550 50  0000 C CNN
F 2 "" V 7180 2550 50  0000 C CNN
F 3 "" H 7250 2550 50  0000 C CNN
	1    7250 2550
236 237 238
	1    0    0    -1  
$EndComp
$Comp
239
L GND #PWR20
240
U 1 1 5A270FD9
241 242 243 244 245 246
P 7150 2800
F 0 "#PWR20" H 7150 2550 50  0001 C CNN
F 1 "GND" H 7150 2650 50  0000 C CNN
F 2 "" H 7150 2800 50  0000 C CNN
F 3 "" H 7150 2800 50  0000 C CNN
	1    7150 2800
247 248 249
	1    0    0    -1  
$EndComp
$Comp
250
L +8V #PWR22
251
U 1 1 5A270FDB
252 253 254 255 256 257
P 7850 2150
F 0 "#PWR22" H 7850 2000 50  0001 C CNN
F 1 "+8V" H 7850 2290 50  0000 C CNN
F 2 "" H 7850 2150 50  0000 C CNN
F 3 "" H 7850 2150 50  0000 C CNN
	1    7850 2150
258 259 260
	1    0    0    -1  
$EndComp
$Comp
261
L GND #PWR13
262
U 1 1 5A270FDD
263 264 265 266 267 268
P 5350 5150
F 0 "#PWR13" H 5350 4900 50  0001 C CNN
F 1 "GND" H 5350 5000 50  0000 C CNN
F 2 "" H 5350 5150 50  0000 C CNN
F 3 "" H 5350 5150 50  0000 C CNN
	1    5350 5150
269 270 271
	1    0    0    -1  
$EndComp
$Comp
272
L ZENERsmall D5
273
U 1 1 5A270FE1
274 275 276 277 278 279
P 8700 2600
F 0 "D5" H 8700 2700 50  0000 C CNN
F 1 "5V1" H 8700 2500 50  0000 C CNN
F 2 "" H 8700 2600 50  0000 C CNN
F 3 "" H 8700 2600 50  0000 C CNN
	1    8700 2600
280 281 282
	0    1    1    0   
$EndComp
$Comp
283
L OPA177 U3
284
U 1 1 5A270FDA
285 286 287 288 289 290
P 7950 2450
F 0 "U3" H 7950 2450 50  0000 C CNN
F 1 "OPA177" H 8100 2250 50  0000 C CNN
F 2 "" H 7850 2350 50  0000 C CNN
F 3 "" H 7950 2450 50  0000 C CNN
	1    7950 2450
291 292 293
	1    0    0    -1  
$EndComp
$Comp
294
L CP C5
295
U 1 1 5A270FD3
296 297 298 299 300 301
P 5400 4250
F 0 "C5" V 5450 4350 50  0000 L CNN
F 1 "10u" V 5250 4200 50  0000 L CNN
F 2 "" H 5438 4100 50  0000 C CNN
F 3 "" H 5400 4250 50  0000 C CNN
	1    5400 4250
302 303 304
	0    1    1    0   
$EndComp
$Comp
305
L R R12
306
U 1 1 5A270FD4
307 308 309 310 311 312
P 5400 4450
F 0 "R12" V 5480 4450 50  0000 C CNN
F 1 "18k" V 5400 4450 50  0000 C CNN
F 2 "" V 5330 4450 50  0000 C CNN
F 3 "" H 5400 4450 50  0000 C CNN
	1    5400 4450
313 314 315 316 317
	0    1    1    0   
$EndComp
$Comp
L POT RV1
U 1 1 5A270FD5
318 319 320 321 322 323
P 5800 4450
F 0 "RV1" H 5800 4370 50  0000 C CNN
F 1 "5k" H 5800 4450 50  0000 C CNN
F 2 "" H 5800 4450 50  0000 C CNN
F 3 "" H 5800 4450 50  0000 C CNN
	1    5800 4450
324 325 326 327 328
	1    0    0    -1  
$EndComp
$Comp
L D_Small D2
U 1 1 5A270FCA
329 330 331 332 333 334
P 4100 4900
F 0 "D2" H 4050 4980 50  0000 L CNN
F 1 "1n4148" H 3950 4820 50  0000 L CNN
F 2 "" V 4100 4900 50  0000 C CNN
F 3 "" V 4100 4900 50  0000 C CNN
	1    4100 4900
335 336 337
	1    0    0    -1  
$EndComp
$Comp
338
L R R8
339
U 1 1 5A270FCB
340 341 342 343 344 345
P 4600 4900
F 0 "R8" V 4680 4900 50  0000 C CNN
F 1 "10k" V 4600 4900 50  0000 C CNN
F 2 "" V 4530 4900 50  0000 C CNN
F 3 "" H 4600 4900 50  0000 C CNN
	1    4600 4900
346 347 348
	0    1    1    0   
$EndComp
$Comp
349
L GND #PWR8
350
U 1 1 5A270FD1
351 352 353 354 355 356
P 3750 4550
F 0 "#PWR8" H 3750 4300 50  0001 C CNN
F 1 "GND" H 3750 4400 50  0000 C CNN
F 2 "" H 3750 4550 50  0000 C CNN
F 3 "" H 3750 4550 50  0000 C CNN
	1    3750 4550
357 358 359 360 361
	0    -1   -1   0   
$EndComp
$Comp
L -8V #PWR23
U 1 1 5A270FDC
362 363 364 365 366 367
P 7850 2750
F 0 "#PWR23" H 7850 2850 50  0001 C CNN
F 1 "-8V" H 7850 2900 50  0000 C CNN
F 2 "" H 7850 2750 50  0000 C CNN
F 3 "" H 7850 2750 50  0000 C CNN
	1    7850 2750
368 369 370
	1    0    0    1   
$EndComp
$Comp
371
L R R18
372
U 1 1 5A270FDE
373 374 375 376 377 378
P 7900 3100
F 0 "R18" V 7980 3100 50  0000 C CNN
F 1 "27k" V 7900 3100 50  0000 C CNN
F 2 "" V 7830 3100 50  0000 C CNN
F 3 "" H 7900 3100 50  0000 C CNN
	1    7900 3100
379 380 381
	0    1    1    0   
$EndComp
$Comp
382
L C C9
383
U 1 1 5A270FDF
384 385 386 387 388 389
P 7900 3400
F 0 "C9" H 7925 3500 50  0000 L CNN
F 1 "220n" V 7950 3150 50  0000 L CNN
F 2 "" H 7938 3250 50  0000 C CNN
F 3 "" H 7900 3400 50  0000 C CNN
	1    7900 3400
390 391 392
	0    1    1    0   
$EndComp
$Comp
393
L GND #PWR24
394
U 1 1 5A270FE2
395 396 397 398 399 400
P 8700 2800
F 0 "#PWR24" H 8700 2550 50  0001 C CNN
F 1 "GND" H 8700 2650 50  0000 C CNN
F 2 "" H 8700 2800 50  0000 C CNN
F 3 "" H 8700 2800 50  0000 C CNN
	1    8700 2800
401 402 403
	1    0    0    -1  
$EndComp
$Comp
404
L R R19
405
U 1 1 5A270FE0
406 407 408 409 410 411
P 8500 2450
F 0 "R19" V 8400 2450 50  0000 C CNN
F 1 "100" V 8500 2450 50  0000 C CNN
F 2 "" V 8430 2450 50  0000 C CNN
F 3 "" H 8500 2450 50  0000 C CNN
	1    8500 2450
412 413 414 415 416
	0    1    1    0   
$EndComp
$Comp
L TL062 U1
U 2 1 5A270FD2
417 418 419 420 421 422
P 5700 5000
F 0 "U1" H 5650 5000 50  0000 L CNN
F 1 "TL062" H 5650 4850 50  0000 L CNN
F 2 "" H 5700 5000 50  0000 C CNN
F 3 "" H 5700 5000 50  0000 C CNN
	2    5700 5000
423 424 425
	1    0    0    1   
$EndComp
$Comp
426
L C_Small C2
427
U 1 1 5A270FCF
428 429 430 431 432 433
P 3650 4550
F 0 "C2" V 3750 4650 50  0000 L CNN
F 1 "100n" V 3550 4500 50  0000 L CNN
F 2 "" H 3650 4550 50  0000 C CNN
F 3 "" H 3650 4550 50  0000 C CNN
	1    3650 4550
434 435 436 437 438
	0    1    1    0   
$EndComp
$Comp
L -8V #PWR6
U 1 1 5A270FD0
439 440 441 442 443 444
P 3500 4500
F 0 "#PWR6" H 3500 4600 50  0001 C CNN
F 1 "-8V" H 3500 4650 50  0000 C CNN
F 2 "" H 3500 4500 50  0000 C CNN
F 3 "" H 3500 4500 50  0000 C CNN
	1    3500 4500
445 446 447 448 449
	1    0    0    -1  
$EndComp
$Comp
L BNC P1
U 1 1 5A270FC4
450 451 452 453 454 455
P 2550 2850
F 0 "P1" H 2700 2750 50  0000 C CNN
F 1 "INPUT" H 2550 3000 50  0000 C CNN
F 2 "" H 2550 2850 50  0000 C CNN
F 3 "" H 2550 2850 50  0000 C CNN
	1    2550 2850
456 457 458
	-1   0    0    -1  
$EndComp
$Comp
459
L BNC P6
460
U 1 1 5A270FE3
461 462 463 464 465 466
P 9250 2450
F 0 "P6" H 9400 2350 50  0000 C CNN
F 1 "OUTPUT (0-5V)" H 9250 2600 50  0000 C CNN
F 2 "" H 9250 2450 50  0000 C CNN
F 3 "" H 9250 2450 50  0000 C CNN
	1    9250 2450
467 468 469
	1    0    0    -1  
$EndComp
$Comp
470
L GND #PWR9
471
U 1 1 5A2738F2
472 473 474 475 476 477
P 3750 5250
F 0 "#PWR9" H 3750 5000 50  0001 C CNN
F 1 "GND" H 3750 5100 50  0000 C CNN
F 2 "" H 3750 5250 50  0000 C CNN
F 3 "" H 3750 5250 50  0000 C CNN
	1    3750 5250
478 479 480
	0    -1   -1   0   
$EndComp
$Comp
481
L C_Small C3
482
U 1 1 5A2738F8
483 484 485 486 487 488
P 3650 5250
F 0 "C3" V 3750 5350 50  0000 L CNN
F 1 "100n" V 3550 5200 50  0000 L CNN
F 2 "" H 3650 5250 50  0000 C CNN
F 3 "" H 3650 5250 50  0000 C CNN
	1    3650 5250
489 490 491 492 493
	0    1    1    0   
$EndComp
$Comp
L TL062 U1
U 1 1 5A270FC8
494 495 496 497 498 499
P 3600 4900
F 0 "U1" H 3550 4900 50  0000 L CNN
F 1 "TL062" H 3650 4800 50  0000 L CNN
F 2 "" H 3600 4900 50  0000 C CNN
F 3 "" H 3600 4900 50  0000 C CNN
	1    3600 4900
500 501 502
	1    0    0    1   
$EndComp
$Comp
503
L +8V #PWR7
504
U 1 1 5A273BD0
505 506 507 508 509 510
P 3500 5300
F 0 "#PWR7" H 3500 5150 50  0001 C CNN
F 1 "+8V" H 3500 5440 50  0000 C CNN
F 2 "" H 3500 5300 50  0000 C CNN
F 3 "" H 3500 5300 50  0000 C CNN
	1    3500 5300
511 512 513
	-1   0    0    1   
$EndComp
$Comp
514
L LM393 U2
515
U 1 1 5A27494E
516 517 518 519 520 521
P 8050 4550
F 0 "U2" H 8100 4550 50  0000 C CNN
F 1 "LM393" H 8300 4400 50  0000 C CNN
F 2 "" H 8050 4550 50  0000 C CNN
F 3 "" H 8050 4550 50  0000 C CNN
	1    8050 4550
522 523 524
	1    0    0    1   
$EndComp
$Comp
525
L LM393 U2
526
U 2 1 5A27494F
527 528 529 530 531 532
P 3450 2050
F 0 "U2" H 3600 2200 50  0000 C CNN
F 1 "LM393" H 3700 1900 50  0000 C CNN
F 2 "" H 3450 2050 50  0000 C CNN
F 3 "" H 3450 2050 50  0000 C CNN
	2    3450 2050
533 534 535
	1    0    0    -1  
$EndComp
$Comp
536
L R R11
537
U 1 1 5A274950
538 539 540 541 542 543
P 7650 4250
F 0 "R11" V 7730 4250 50  0000 C CNN
F 1 "2k7" V 7650 4250 50  0000 C CNN
F 2 "" V 7580 4250 50  0000 C CNN
F 3 "" H 7650 4250 50  0000 C CNN
	1    7650 4250
544 545 546
	-1   0    0    1   
$EndComp
$Comp
547
L C_Small C6
548
U 1 1 5A274951
549 550 551 552 553 554
P 8100 4150
F 0 "C6" V 8200 4150 50  0000 L CNN
F 1 "100n" V 8000 4050 50  0000 L CNN
F 2 "" H 8100 4150 50  0000 C CNN
F 3 "" H 8100 4150 50  0000 C CNN
	1    8100 4150
555 556 557
	0    1    1    0   
$EndComp
$Comp
558
L GND #PWR17
559
U 1 1 5A274952
560 561 562 563 564 565
P 8200 4150
F 0 "#PWR17" H 8200 3900 50  0001 C CNN
F 1 "GND" H 8200 4000 50  0000 C CNN
F 2 "" H 8200 4150 50  0000 C CNN
F 3 "" H 8200 4150 50  0000 C CNN
	1    8200 4150
566 567 568 569 570
	0    -1   -1   0   
$EndComp
$Comp
L -8V #PWR15
U 1 1 5A274953
571 572 573 574 575 576
P 7950 4050
F 0 "#PWR15" H 7950 4150 50  0001 C CNN
F 1 "-8V" H 7950 4200 50  0000 C CNN
F 2 "" H 7950 4050 50  0000 C CNN
F 3 "" H 7950 4050 50  0000 C CNN
	1    7950 4050
577 578 579
	1    0    0    -1  
$EndComp
$Comp
580
L R R9
581
U 1 1 5A274956
582 583 584 585 586 587
P 7350 4450
F 0 "R9" V 7430 4450 50  0000 C CNN
F 1 "3k3" V 7350 4450 50  0000 C CNN
F 2 "" V 7280 4450 50  0000 C CNN
F 3 "" H 7350 4450 50  0000 C CNN
	1    7350 4450
588 589 590
	1    0    0    -1  
$EndComp
$Comp
591
L R R10
592
U 1 1 5A274957
593 594 595 596 597 598
P 7350 4850
F 0 "R10" V 7430 4850 50  0000 C CNN
F 1 "5k6" V 7350 4850 50  0000 C CNN
F 2 "" V 7280 4850 50  0000 C CNN
F 3 "" H 7350 4850 50  0000 C CNN
	1    7350 4850
599 600 601
	1    0    0    -1  
$EndComp
$Comp
602
L +8V #PWR16
603
U 1 1 5A274958
604 605 606 607 608 609
P 7950 4950
F 0 "#PWR16" H 7950 4800 50  0001 C CNN
F 1 "+8V" H 7950 5090 50  0000 C CNN
F 2 "" H 7950 4950 50  0000 C CNN
F 3 "" H 7950 4950 50  0000 C CNN
	1    7950 4950
610 611 612
	1    0    0    1   
$EndComp
$Comp
613
L C_Small C7
614
U 1 1 5A274959
615 616 617 618 619 620
P 8100 4900
F 0 "C7" V 8150 4950 50  0000 L CNN
F 1 "100n" V 8000 4850 50  0000 L CNN
F 2 "" H 8100 4900 50  0000 C CNN
F 3 "" H 8100 4900 50  0000 C CNN
	1    8100 4900
621 622 623
	0    1    -1   0   
$EndComp
$Comp
624
L GND #PWR18
625
U 1 1 5A27495A
626 627 628 629 630 631
P 8200 4900
F 0 "#PWR18" H 8200 4650 50  0001 C CNN
F 1 "GND" H 8200 4750 50  0000 C CNN
F 2 "" H 8200 4900 50  0000 C CNN
F 3 "" H 8200 4900 50  0000 C CNN
	1    8200 4900
632 633 634
	0    -1   1    0   
$EndComp
$Comp
635
L +8V #PWR11
636
U 1 1 5A27495B
637 638 639 640 641 642
P 7350 4300
F 0 "#PWR11" H 7350 4150 50  0001 C CNN
F 1 "+8V" H 7350 4440 50  0000 C CNN
F 2 "" H 7350 4300 50  0000 C CNN
F 3 "" H 7350 4300 50  0000 C CNN
	1    7350 4300
643 644 645
	-1   0    0    -1  
$EndComp
$Comp
646
L GND #PWR12
647
U 1 1 5A27495C
648 649 650 651 652 653
P 7350 5000
F 0 "#PWR12" H 7350 4750 50  0001 C CNN
F 1 "GND" H 7350 4850 50  0000 C CNN
F 2 "" H 7350 5000 50  0000 C CNN
F 3 "" H 7350 5000 50  0000 C CNN
	1    7350 5000
654 655 656
	-1   0    0    -1  
$EndComp
$Comp
657
L R R13
658
U 1 1 5A27495D
659 660 661 662 663 664
P 7800 5300
F 0 "R13" V 7880 5300 50  0000 C CNN
F 1 "27k" V 7800 5300 50  0000 C CNN
F 2 "" V 7730 5300 50  0000 C CNN
F 3 "" H 7800 5300 50  0000 C CNN
	1    7800 5300
665 666 667
	0    1    1    0   
$EndComp
$Comp
668
L D_Small D3
669
U 1 1 5A27495E
670 671 672 673 674 675
P 8150 5300
F 0 "D3" H 8100 5380 50  0000 L CNN
F 1 "1n4148" H 8000 5220 50  0000 L CNN
F 2 "" V 8150 5300 50  0000 C CNN
F 3 "" V 8150 5300 50  0000 C CNN
	1    8150 5300
676 677 678
	-1   0    0    -1  
$EndComp
$Comp
679
L LED D4
680
U 1 1 5A27495F
681 682 683 684 685 686
P 9000 4350
F 0 "D4" H 9000 4250 50  0000 C CNN
F 1 "SATURATION_LED" H 9000 4500 50  0000 C CNN
F 2 "" H 9000 4350 50  0000 C CNN
F 3 "" H 9000 4350 50  0000 C CNN
	1    9000 4350
687 688 689
	0    1    -1   0   
$EndComp
$Comp
690
L R R17
691
U 1 1 5A274960
692 693 694 695 696 697
P 8800 4100
F 0 "R17" V 8880 4100 50  0000 C CNN
F 1 "2k7" V 8800 4100 50  0000 C CNN
F 2 "" V 8730 4100 50  0000 C CNN
F 3 "" H 8800 4100 50  0000 C CNN
	1    8800 4100
698 699 700
	0    -1   -1   0   
$EndComp
$Comp
701
L +8V #PWR21
702
U 1 1 5A274961
703 704 705 706 707 708
P 8600 4050
F 0 "#PWR21" H 8600 3900 50  0001 C CNN
F 1 "+8V" H 8600 4190 50  0000 C CNN
F 2 "" H 8600 4050 50  0000 C CNN
F 3 "" H 8600 4050 50  0000 C CNN
	1    8600 4050
709 710 711
	-1   0    0    -1  
$EndComp
$Comp
712
L GND #PWR14
713
U 1 1 5A274962
714 715 716 717 718 719
P 3050 2200
F 0 "#PWR14" H 3050 1950 50  0001 C CNN
F 1 "GND" H 3050 2050 50  0000 C CNN
F 2 "" H 3050 2200 50  0000 C CNN
F 3 "" H 3050 2200 50  0000 C CNN
	1    3050 2200
720 721
	1    0    0    -1  
$EndComp
722 723 724
NoConn ~ 3350 1750
NoConn ~ 3350 2350
NoConn ~ 3750 2050
725
$Comp
726
L CONN_01X01 P2
727
U 1 1 5A274963
728 729 730 731 732 733
P 4500 2550
F 0 "P2" H 4500 2650 50  0000 C CNN
F 1 "+8" V 4600 2550 50  0000 C CNN
F 2 "" H 4500 2550 50  0000 C CNN
F 3 "" H 4500 2550 50  0000 C CNN
	1    4500 2550
734 735 736
	-1   0    0    -1  
$EndComp
$Comp
737
L CONN_01X01 P3
738
U 1 1 5A274964
739 740 741 742 743 744
P 4500 2850
F 0 "P3" H 4500 2950 50  0000 C CNN
F 1 "-8" V 4600 2850 50  0000 C CNN
F 2 "" H 4500 2850 50  0000 C CNN
F 3 "" H 4500 2850 50  0000 C CNN
	1    4500 2850
745 746 747
	-1   0    0    -1  
$EndComp
$Comp
748
L CONN_01X01 P4
749
U 1 1 5A274965
750 751 752 753 754 755
P 4500 3150
F 0 "P4" H 4500 3250 50  0000 C CNN
F 1 "GND" V 4600 3150 50  0000 C CNN
F 2 "" H 4500 3150 50  0000 C CNN
F 3 "" H 4500 3150 50  0000 C CNN
	1    4500 3150
756 757 758
	-1   0    0    -1  
$EndComp
$Comp
759
L R R3
760
U 1 1 5A274966
761 762 763 764 765 766
P 4850 2550
F 0 "R3" V 4930 2550 50  0000 C CNN
F 1 "10" V 4850 2550 50  0000 C CNN
F 2 "" V 4780 2550 50  0000 C CNN
F 3 "" H 4850 2550 50  0000 C CNN
	1    4850 2550
767 768 769
	0    1    1    0   
$EndComp
$Comp
770
L R R4
771
U 1 1 5A274967
772 773 774 775 776 777
P 4850 2850
F 0 "R4" V 4930 2850 50  0000 C CNN
F 1 "10" V 4850 2850 50  0000 C CNN
F 2 "" V 4780 2850 50  0000 C CNN
F 3 "" H 4850 2850 50  0000 C CNN
	1    4850 2850
778 779 780
	0    1    1    0   
$EndComp
$Comp
781
L CP_Small C1
782
U 1 1 5A274968
783 784 785 786 787 788
P 5150 3000
F 0 "C1" H 5160 3070 50  0000 L CNN
F 1 "22u" H 5160 2920 50  0000 L CNN
F 2 "" H 5150 3000 50  0000 C CNN
F 3 "" H 5150 3000 50  0000 C CNN
	1    5150 3000
789 790 791
	1    0    0    1   
$EndComp
$Comp
792
L CP_Small C4
793
U 1 1 5A274969
794 795 796 797 798 799
P 5750 3000
F 0 "C4" H 5760 3070 50  0000 L CNN
F 1 "22u" H 5760 2920 50  0000 L CNN
F 2 "" H 5750 3000 50  0000 C CNN
F 3 "" H 5750 3000 50  0000 C CNN
	1    5750 3000
800 801 802
	1    0    0    -1  
$EndComp
$Comp
803
L GND #PWR5
804
U 1 1 5A27496A
805 806 807 808 809 810
P 5150 3200
F 0 "#PWR5" H 5150 2950 50  0001 C CNN
F 1 "GND" H 5150 3050 50  0000 C CNN
F 2 "" H 5150 3200 50  0000 C CNN
F 3 "" H 5150 3200 50  0000 C CNN
	1    5150 3200
811 812 813
	1    0    0    -1  
$EndComp
$Comp
814
L +8V #PWR10
815
U 1 1 5A27496B
816 817 818 819 820 821
P 5750 2500
F 0 "#PWR10" H 5750 2350 50  0001 C CNN
F 1 "+8V" H 5750 2640 50  0000 C CNN
F 2 "" H 5750 2500 50  0000 C CNN
F 3 "" H 5750 2500 50  0000 C CNN
	1    5750 2500
822 823 824 825 826
	1    0    0    -1  
$EndComp
$Comp
L -8V #PWR4
U 1 1 5A27496C
827 828 829 830 831 832
P 5150 2800
F 0 "#PWR4" H 5150 2900 50  0001 C CNN
F 1 "-8V" H 5150 2950 50  0000 C CNN
F 2 "" H 5150 2800 50  0000 C CNN
F 3 "" H 5150 2800 50  0000 C CNN
	1    5150 2800
833 834 835
	1    0    0    -1  
$EndComp
$Comp
836
L PWR_FLAG #FLG1
837
U 1 1 5A27496D
838 839 840 841 842 843
P 5150 2450
F 0 "#FLG1" H 5150 2545 50  0001 C CNN
F 1 "PWR_FLAG" H 5150 2630 50  0000 C CNN
F 2 "" H 5150 2450 50  0000 C CNN
F 3 "" H 5150 2450 50  0000 C CNN
	1    5150 2450
844 845 846
	1    0    0    -1  
$EndComp
$Comp
847
L PWR_FLAG #FLG2
848
U 1 1 5A27496E
849 850 851 852 853 854
P 5450 2800
F 0 "#FLG2" H 5450 2895 50  0001 C CNN
F 1 "PWR_FLAG" H 5450 2980 50  0000 C CNN
F 2 "" H 5450 2800 50  0000 C CNN
F 3 "" H 5450 2800 50  0000 C CNN
	1    5450 2800
855 856 857
	1    0    0    -1  
$EndComp
$Comp
858
L PWR_FLAG #FLG3
859
U 1 1 5A27496F
860 861 862 863 864 865
P 5450 3200
F 0 "#FLG3" H 5450 3295 50  0001 C CNN
F 1 "PWR_FLAG" H 5450 3380 50  0000 C CNN
F 2 "" H 5450 3200 50  0000 C CNN
F 3 "" H 5450 3200 50  0000 C CNN
	1    5450 3200
866 867
	1    0    0    1   
$EndComp
868
Text Notes 4550 3600 0    60   ~ 0
869
POWER - Symmetric 8V\n
870
Text Notes 7800 5600 0    60   ~ 0
871
Saturation Indicator
872
Text Notes 2800 3650 0    60   ~ 0
873
I to V Converter\n
874
Wire Wire Line
875
	2700 2850 3650 2850
876
Wire Wire Line
877
	2700 4800 2900 4800
878
Wire Wire Line
879
	3500 2850 3500 2900
880
Wire Wire Line
881 882 883
	3200 2850 3200 2900
Connection ~ 3500 2850
Connection ~ 3200 2850
884
Wire Wire Line
885
	2550 3050 2550 3250
886
Wire Wire Line
887
	2550 3250 3500 3250
888
Wire Wire Line
889
	3500 3250 3500 3200
890
Wire Wire Line
891 892
	3200 3200 3200 3300
Connection ~ 3200 3250
893
Wire Wire Line
894
	3200 4800 3300 4800
895
Wire Wire Line
896
	3900 4900 4000 4900
897
Wire Wire Line
898
	4200 4900 4450 4900
899
Wire Wire Line
900
	3750 4150 3950 4150
901
Wire Wire Line
902 903
	3950 4150 3950 4900
Connection ~ 3950 4900
904
Wire Wire Line
905
	3550 4150 3250 4150
906
Wire Wire Line
907 908
	3250 3950 3250 4800
Connection ~ 3250 4800
909
Wire Wire Line
910
	4750 4900 5400 4900
911
Wire Wire Line
912
	4950 4250 4950 5550
913
Wire Wire Line
914 915
	2800 5550 2800 4800
Connection ~ 2800 4800
916
Wire Wire Line
917
	3800 3950 4250 3950
918
Wire Wire Line
919 920
	4250 3950 4250 4900
Connection ~ 4250 4900
921
Wire Wire Line
922 923
	3500 3950 3250 3950
Connection ~ 3250 4150
924
Wire Wire Line
925
	3250 5050 3250 5000
926
Wire Wire Line
927
	3250 5000 3300 5000
928
Wire Wire Line
929
	3500 4500 3500 4600
930
Wire Wire Line
931 932 933
	3500 4550 3550 4550
Connection ~ 3500 4550
Connection ~ 4950 4900
934
Wire Wire Line
935
	4950 4250 5250 4250
936
Wire Wire Line
937 938
	5250 4450 4950 4450
Connection ~ 4950 4450
939
Wire Wire Line
940
	5550 4450 5650 4450
941
Wire Wire Line
942
	5550 4250 6100 4250
943
Wire Wire Line
944
	5800 4250 5800 4300
945
Wire Wire Line
946
	6100 4250 6100 5000
947
Wire Wire Line
948 949
	6000 5000 6200 5000
Connection ~ 5800 4250
950
Wire Wire Line
951 952 953
	5950 4450 6100 4450
Connection ~ 6100 4450
Connection ~ 6100 5000
954
Wire Wire Line
955
	7000 2350 7650 2350
956
Wire Wire Line
957
	7050 2350 7050 2400
958
Wire Wire Line
959 960
	7250 2350 7250 2400
Connection ~ 7050 2350
961
Wire Wire Line
962
	7050 2700 7050 2750
963
Wire Wire Line
964
	7050 2750 7250 2750
965
Wire Wire Line
966
	7250 2750 7250 2700
967
Wire Wire Line
968 969 970
	7150 2800 7150 2750
Connection ~ 7150 2750
Connection ~ 7250 2350
971
Wire Wire Line
972
	5350 5150 5350 5100
973
Wire Wire Line
974
	5350 5100 5400 5100
975
Wire Wire Line
976
	7700 3400 7750 3400
977
Wire Wire Line
978
	7700 3100 7700 3400
979
Wire Wire Line
980
	7700 3100 7750 3100
981
Wire Wire Line
982
	7500 3250 7700 3250
983
Wire Wire Line
984
	7550 2550 7550 3250
985
Wire Wire Line
986 987
	7550 2550 7650 2550
Connection ~ 7700 3250
988
Wire Wire Line
989
	8050 3100 8100 3100
990
Wire Wire Line
991
	8100 3100 8100 3400
992
Wire Wire Line
993 994
	8100 3400 8050 3400
Connection ~ 8100 3250
995
Wire Wire Line
996
	8650 2450 9100 2450
997
Wire Wire Line
998 999
	8700 2450 8700 2500
Connection ~ 8700 2450
1000
Wire Wire Line
1001
	8700 2700 8700 2800
1002
Wire Wire Line
1003
	8700 2750 9250 2750
1004
Wire Wire Line
1005 1006
	9250 2750 9250 2650
Connection ~ 8700 2750
1007
Wire Wire Line
1008 1009
	3500 5250 3550 5250
Connection ~ 3500 5250
1010
Wire Wire Line
1011
	3500 5200 3500 5300
1012
Wire Wire Line
1013
	7650 4400 7650 4450
1014
Wire Wire Line
1015
	7650 4450 7750 4450
1016
Wire Wire Line
1017 1018
	7950 4150 8000 4150
Connection ~ 7950 4150
1019
Wire Wire Line
1020
	7950 4050 7950 4250
1021
Wire Wire Line
1022
	7650 4100 7650 3950
1023
Wire Wire Line
1024
	8000 4900 7950 4900
1025
Wire Wire Line
1026 1027
	7950 4850 7950 4950
Connection ~ 7950 4900
1028
Wire Wire Line
1029
	7350 4600 7350 4700
1030
Wire Wire Line
1031 1032
	7350 4650 7750 4650
Connection ~ 7350 4650
1033
Wire Wire Line
1034
	8250 5300 8450 5300
1035
Wire Wire Line
1036
	7950 5300 8050 5300
1037
Wire Wire Line
1038
	7650 5300 7600 5300
1039
Wire Wire Line
1040 1041
	7600 5300 7600 4650
Connection ~ 7600 4650
1042
Wire Wire Line
1043
	9000 4150 9000 4100
1044
Wire Wire Line
1045
	9000 4100 8950 4100
1046
Wire Wire Line
1047
	8600 4050 8600 4100
1048
Wire Wire Line
1049
	8600 4100 8650 4100
1050
Wire Wire Line
1051
	3150 1950 3050 1950
1052
Wire Wire Line
1053
	3050 1950 3050 2200
1054
Wire Wire Line
1055 1056
	3050 2150 3150 2150
Connection ~ 3050 2150
1057
Wire Wire Line
1058
	5150 2800 5150 2900
1059
Wire Wire Line
1060
	5000 2850 5450 2850
1061
Wire Wire Line
1062
	5750 2500 5750 2900
1063
Wire Wire Line
1064
	5000 2550 5750 2550
1065
Wire Wire Line
1066
	5150 3100 5150 3200
1067
Wire Wire Line
1068
	4700 3150 5750 3150
1069
Wire Wire Line
1070 1071 1072
	5750 3150 5750 3100
Connection ~ 5150 3150
Connection ~ 5750 2550
1073
Wire Wire Line
1074 1075
	5150 2450 5150 2550
Connection ~ 5150 2550
1076
Wire Wire Line
1077 1078
	5450 2850 5450 2800
Connection ~ 5150 2850
1079
Wire Wire Line
1080 1081
	5450 3200 5450 3150
Connection ~ 5450 3150
1082
Wire Notes Line
1083
	4250 3700 5950 3700
1084
Wire Notes Line
1085
	5950 3700 5950 2150
1086
Wire Notes Line
1087
	5950 2150 4250 2150
1088
Wire Notes Line
1089
	4250 2150 4250 3700
1090
Wire Notes Line
1091
	2300 3750 6800 3750
1092
$Comp
1093
L R R16
1094
U 1 1 5A278213
1095 1096 1097 1098 1099 1100
P 7350 3250
F 0 "R16" V 7430 3250 50  0000 C CNN
F 1 "2k7" V 7350 3250 50  0000 C CNN
F 2 "" V 7280 3250 50  0000 C CNN
F 3 "" H 7350 3250 50  0000 C CNN
	1    7350 3250
1101 1102 1103 1104 1105
	0    1    1    0   
$EndComp
$Comp
L POT RV2
U 1 1 5A278290
1106 1107 1108 1109 1110 1111
P 7050 3250
F 0 "RV2" H 7050 3170 50  0000 C CNN
F 1 "50k" H 7050 3250 50  0000 C CNN
F 2 "" H 7050 3250 50  0000 C CNN
F 3 "" H 7050 3250 50  0000 C CNN
	1    7050 3250
1112 1113 1114
	1    0    0    -1  
$EndComp
Wire Wire Line
1115 1116
	7050 3100 7050 3050
Connection ~ 7550 3250
1117
$Comp
1118
L CONN_01X02 P5
1119
U 1 1 5A278F5F
1120 1121 1122 1123 1124 1125
P 6700 2950
F 0 "P5" H 6700 3100 50  0000 C CNN
F 1 "GAIN_ADJ." V 6800 2950 50  0000 C CNN
F 2 "" H 6700 2950 50  0000 C CNN
F 3 "" H 6700 2950 50  0000 C CNN
	1    6700 2950
1126 1127 1128
	0    1    -1   0   
$EndComp
$Comp
1129
L GND #PWR19
1130
U 1 1 5A279C98
1131 1132 1133 1134 1135 1136
P 6600 3250
F 0 "#PWR19" H 6600 3000 50  0001 C CNN
F 1 "GND" H 6600 3100 50  0000 C CNN
F 2 "" H 6600 3250 50  0000 C CNN
F 3 "" H 6600 3250 50  0000 C CNN
	1    6600 3250
1137 1138 1139
	0    1    1    0   
$EndComp
Wire Wire Line
1140
	6750 3150 6750 3250
1141
Wire Wire Line
1142
	6750 3250 6900 3250
1143
Wire Wire Line
1144
	6600 3250 6650 3250
1145
Wire Wire Line
1146 1147
	6650 3250 6650 3150
Text Notes 7400 3650 0    60   ~ 0
1148
1-10x Amplifier\n
1149 1150 1151
NoConn ~ 8250 2250
NoConn ~ 8250 2350
NoConn ~ 8250 2550
1152
Wire Wire Line
1153 1154
	8250 2450 8350 2450
Connection ~ 8300 2450
1155 1156 1157
$Comp
L R R7
U 1 1 5A2EF897
1158 1159 1160 1161 1162 1163
P 3900 5550
F 0 "R7" V 3980 5550 50  0000 C CNN
F 1 "20k" V 3900 5550 50  0000 C CNN
F 2 "" V 3830 5550 50  0000 C CNN
F 3 "" H 3900 5550 50  0000 C CNN
	1    3900 5550
1164 1165
	0    1    1    0   
$EndComp
1166
Wire Wire Line
1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205
	3750 5550 2800 5550
Wire Wire Line
	4950 5550 4050 5550
Wire Wire Line
	7050 3050 6850 3050
Wire Wire Line
	6850 3050 6850 3250
Connection ~ 6850 3250
Connection ~ 8450 4550
Wire Wire Line
	8450 5300 8450 4550
Wire Wire Line
	8350 4550 9000 4550
Wire Notes Line
	6850 3750 9600 3750
Wire Notes Line
	9600 3750 9600 5850
Text GLabel 3650 2850 2    60   Output ~ 0
V1_I
Text GLabel 2700 4800 0    60   Input ~ 0
V1_I
Wire Notes Line
	2300 3700 4000 3700
Wire Notes Line
	2300 2600 4000 2600
Wire Notes Line
	2300 2600 2300 3700
Text Notes 3200 6000 0    60   ~ 0
Full Wave Rectifier with Offset Null and Constant Time Adjust\n\n\n
Wire Notes Line
	2300 5850 6800 5850
Text GLabel 6200 5000 2    60   Output ~ 0
I_RECTF
Wire Notes Line
	6800 5850 6800 3750
Text GLabel 6700 2350 0    60   Input ~ 0
I_RECTF
Wire Wire Line
	8300 3250 8100 3250
1206
Wire Wire Line
1207 1208 1209
	8300 2150 8300 3250
Text GLabel 8400 2150 2    60   Output ~ 0
I_RECTF_AMP
1210
Wire Wire Line
1211 1212 1213
	8300 2150 8400 2150
Text GLabel 7550 3950 0    60   Input ~ 0
I_RECTF_AMP
1214
Wire Wire Line
1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231
	7650 3950 7550 3950
Wire Notes Line
	6850 3750 6850 5850
Text Notes 7200 4700 0    60   ~ 0
5V
Wire Notes Line
	9600 1900 9600 3700
Wire Notes Line
	9600 3700 6200 3700
Wire Notes Line
	6200 3700 6200 1900
Wire Notes Line
	6200 1900 9600 1900
Wire Notes Line
	2300 5850 2300 3750
Wire Notes Line
	6850 5850 9600 5850
1232
Wire Notes Line
1233
	4000 2600 4000 3700
1234
$EndSCHEMATC