Simulated a lot today. Ideas for the new transimpedance amp. are there.

ltspice/current_source_max/driver_option1.asc

@@ -1,6 +1,8 @@
 Version 4
 SHEET 1 1136 680
+WIRE 624 -224 624 -256
 WIRE 400 -128 400 -192
+WIRE 624 -96 624 -144
 WIRE 400 -16 400 -64
 WIRE 160 16 16 16
 WIRE 768 16 768 -16
@@ -8,11 +10,9 @@ WIRE 336 32 224 32
 WIRE 16 112 16 16
 WIRE 400 112 400 80
 WIRE 400 112 16 112
-WIRE 768 112 768 96
-WIRE 848 112 768 112
 WIRE 400 128 400 112
 WIRE 640 128 640 96
-WIRE 768 128 768 112
+WIRE 768 128 768 96
 WIRE 400 240 400 208
 WIRE 640 240 640 208
 WIRE 768 240 768 208
@@ -20,12 +20,13 @@ FLAG 640 240 0
 FLAG 768 -16 V+
 FLAG 192 0 V+
 FLAG 192 64 0
-FLAG 848 112 VSIG
+FLAG 624 -256 VSIG
 FLAG 768 240 0
 FLAG 160 48 VSIG
 FLAG 400 -192 V+
 FLAG 400 240 0
 FLAG 640 96 V+
+FLAG 624 -96 0
 SYMBOL Opamps\\opamp2 192 -32 R0
 SYMATTR InstName U1
 SYMATTR Value AD8616
@@ -49,6 +50,11 @@ SYMATTR Value {RJUMP}
 SYMBOL res 752 0 R0
 SYMATTR InstName R3
 SYMATTR Value 100k
+SYMBOL voltage 624 -240 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V2
+SYMATTR Value -1V
 TEXT 16 296 Left 2 !.include AD8616.cir
-TEXT 16 264 Left 2 !.tran 0 1ms 0ms
+TEXT 16 264 Left 2 !.tran 0 1s 0ms
-TEXT 16 328 Left 2 !.step param RJUMP list 1k, 10k, 50k
+TEXT 16 328 Left 2 !.step param RJUMP list 1k, 10k

ltspice/current_source_max/driver_option1.log

@@ -6,59 +6,25 @@ Instance "m:u1:4": Length shorter than recommended for a level 2 MOSFET.
 Instance "m:u1:3": Length shorter than recommended for a level 2 MOSFET.
 Instance "m:u1:2": Length shorter than recommended for a level 2 MOSFET.
 Instance "m:u1:1": Length shorter than recommended for a level 2 MOSFET.
-Direct Newton iteration failed to find .op point.  (Use ".option noopiter" to skip.)
+Direct Newton iteration for .op point succeeded.
-Starting Gmin stepping
-Gmin = 10
-Gmin = 1.07374
-Gmin = 0.115292
-Gmin = 0.0123794
-Gmin = 0.00132923
-vernier = 0.5
-vernier = 0.25
-vernier = 0.125
-vernier = 0.0625
-Gmin = 0.00100083
-vernier = 0.03125
-vernier = 0.015625
-vernier = 0.0078125
-vernier = 0.00390625
-vernier = 0.00195313
-Gmin = 0.00100083
-vernier = 0.000976563
-vernier = 0.000488281
-Gmin = 0
-Gmin stepping failed
-
-Starting source stepping with srcstepmethod=0
-Source Step = 3.0303%
-Source Step = 33.3333%
-Source Step = 51.5152%
-Source Step = 59.0909%
-Source Step = 66.6667%
-Source Step = 74.2424%
-Source Step = 81.8182%
-vernier = 0.375
-Source Step = 90.5303%
-Source stepping succeeded in finding the operating point.
-
 .step rjump=1000
+Changing Tseed to 1e-008
 .step rjump=10000
-.step rjump=50000
 
-Date: Fri Jun 23 11:48:52 2017
+Date: Wed Jun 28 11:03:33 2017
-Total elapsed time: 0.769 seconds.
+Total elapsed time: 0.220 seconds.
 
 tnom = 27
 temp = 27
 method = modified trap
-totiter = 6187
+totiter = 2137
-traniter = 2084
+traniter = 2093
-tranpoints = 1042
+tranpoints = 1043
 accept = 1042
 rejected = 0
-matrix size = 56
+matrix size = 58
-fillins = 60
+fillins = 33
 solver = Normal
-Matrix Compiler1: 5.52 KB object code size  1.8/0.8/[0.5]
+Matrix Compiler1: 4.57 KB object code size  1.7/0.7/[0.5]
-Matrix Compiler2: 5.89 KB object code size  0.9/1.0/[0.7]
+Matrix Compiler2: 5.52 KB object code size  0.7/1.0/[0.7]
 

ltspice/transimpedance_amplifier/002transimpedance_ad8616_three_res.log

@@ -1,75 +0,0 @@
-Circuit: * Z:\home\maximilian\UppSense\ltspice\transimpedance_amplifier\002transimpedance_ad8616_three_res.asc
-
-Instance "m:u1:6": Length shorter than recommended for a level 2 MOSFET.
-Instance "m:u1:5": Length shorter than recommended for a level 2 MOSFET.
-Instance "m:u1:4": Length shorter than recommended for a level 2 MOSFET.
-Instance "m:u1:3": Length shorter than recommended for a level 2 MOSFET.
-Instance "m:u1:2": Length shorter than recommended for a level 2 MOSFET.
-Instance "m:u1:1": Length shorter than recommended for a level 2 MOSFET.
-.step rvar=100
-Direct Newton iteration failed to find .op point.  (Use ".option noopiter" to skip.)
-Starting Gmin stepping
-Gmin = 10
-Gmin = 1.07374
-vernier = 0.5
-vernier = 0.25
-vernier = 0.125
-vernier = 0.0625
-vernier = 0.03125
-Gmin = 1.0412
-vernier = 0.015625
-vernier = 0.0078125
-Gmin = 1.0132
-vernier = 0.00390625
-vernier = 0.00195313
-Gmin = 1.00827
-vernier = 0.00260417
-vernier = 0.00130208
-Gmin = 1.00515
-vernier = 0.000651042
-vernier = 0.000868055
-vernier = 0.000434028
-Gmin = 1.00434
-vernier = 0.000578703
-vernier = 0.000434027
-Gmin = 1.00339
-Gmin = 0
-Gmin stepping failed
-
-Starting source stepping with srcstepmethod=0
-Source Step = 3.0303%
-vernier = 0.25
-Source Step = 7.57576%
-Source Step = 15.1515%
-Source Step = 22.7273%
-Source Step = 30.303%
-Source Step = 37.8788%
-vernier = 0.375
-Source Step = 48.8636%
-Source Step = 60.2273%
-Source Step = 71.5909%
-Source Step = 82.9545%
-Source Step = 94.3182%
-vernier = 0.5625
-Source stepping succeeded in finding the operating point.
-
-.step rvar=1000
-.step rvar=10000
-
-Date: Wed Jun 14 13:11:08 2017
-Total elapsed time: 1.163 seconds.
-
-tnom = 27
-temp = 27
-method = trap
-totiter = 6807
-traniter = 0
-tranpoints = 0
-accept = 0
-rejected = 0
-matrix size = 53
-fillins = 63
-solver = Normal
-Matrix Compiler1: 4.16 KB object code size  1.6/0.9/[0.5]
-Matrix Compiler2: 5.90 KB object code size  1.1/1.2/[0.6]
-

ltspice/transimpedance_amplifier/003transimpedance_ada4530_one_res.asc

@@ -31,11 +31,11 @@ FLAG 224 272 0
 FLAG -208 176 0
 FLAG -336 48 V+
 FLAG -336 256 V-
-FLAG 288 224 V-
 FLAG 288 160 V+
 FLAG 416 -32 OUT
 FLAG 272 128 GRD1
 FLAG 272 256 GRD2
+FLAG 288 224 V-
 SYMBOL current -32 144 R0
 WINDOW 123 0 0 Left 2
 WINDOW 39 0 0 Left 2
@@ -51,19 +51,19 @@ SYMBOL res 352 -48 R90
 WINDOW 0 0 56 VBottom 2
 WINDOW 3 32 56 VTop 2
 SYMATTR InstName R2
-SYMATTR Value 10G
+SYMATTR Value 50G
 SYMBOL voltage -336 32 R0
 WINDOW 123 0 0 Left 2
 WINDOW 39 0 0 Left 2
 SYMATTR InstName V1
-SYMATTR Value 10
+SYMATTR Value 5
 SYMBOL voltage -336 160 R0
 WINDOW 123 0 0 Left 2
 WINDOW 39 0 0 Left 2
 SYMATTR InstName V2
-SYMATTR Value 10
+SYMATTR Value 5
 SYMBOL opamp_with_guards 288 128 R0
 SYMATTR InstName U1
 SYMATTR Value ADA4530
-TEXT -368 328 Left 2 !.dc dec I1 10f 100n
+TEXT -368 328 Left 2 !.dc dec I1 10f 1n
 TEXT -368 368 Left 2 !.include ADA4530.cir

ltspice/transimpedance_amplifier/004transimpedance_ada4530_pulsing.asc

@@ -0,0 +1,79 @@
+Version 4
+SHEET 1 880 680
+WIRE 272 -144 208 -144
+WIRE 416 -144 336 -144
+WIRE 48 -32 -32 -32
+WIRE 144 -32 48 -32
+WIRE 208 -32 208 -144
+WIRE 208 -32 144 -32
+WIRE 256 -32 208 -32
+WIRE 416 -32 416 -144
+WIRE 416 -32 336 -32
+WIRE -336 144 -336 128
+WIRE -208 144 -336 144
+WIRE -32 144 -32 -32
+WIRE 48 144 48 -32
+WIRE 144 160 144 -32
+WIRE 272 160 272 128
+WIRE -336 176 -336 144
+WIRE -208 176 -208 144
+WIRE 208 176 208 -32
+WIRE 256 176 208 176
+WIRE 416 192 416 -32
+WIRE 416 192 320 192
+WIRE 256 208 224 208
+WIRE 272 256 272 224
+WIRE -32 272 -32 224
+WIRE 48 272 48 224
+WIRE 48 272 -32 272
+WIRE 144 272 144 224
+WIRE 144 272 48 272
+WIRE 224 272 224 208
+WIRE -32 304 -32 272
+FLAG -32 304 0
+FLAG 224 272 0
+FLAG -208 176 0
+FLAG -336 48 V+
+FLAG -336 256 V-
+FLAG 288 160 V+
+FLAG 416 -32 OUT
+FLAG 272 128 GRD1
+FLAG 272 256 GRD2
+FLAG 288 224 0
+SYMBOL current -32 144 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+WINDOW 3 -14 219 Left 2
+SYMATTR InstName I1
+SYMATTR Value PULSE(0 1pA 0 1us 1us 100ms 200ms 10)
+SYMBOL res 32 128 R0
+SYMATTR InstName R1
+SYMATTR Value 5G
+SYMBOL cap 128 160 R0
+SYMATTR InstName C1
+SYMATTR Value 72p
+SYMBOL res 352 -48 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R2
+SYMATTR Value 10G
+SYMBOL voltage -336 32 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V1
+SYMATTR Value 5
+SYMBOL voltage -336 160 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V2
+SYMATTR Value 5
+SYMBOL opamp_with_guards 288 128 R0
+SYMATTR InstName U1
+SYMATTR Value ADA4530
+SYMBOL cap 336 -160 R90
+WINDOW 0 0 32 VBottom 2
+WINDOW 3 32 32 VTop 2
+SYMATTR InstName C2
+SYMATTR Value 0
+TEXT -368 328 Left 2 !.tran 1s
+TEXT -368 368 Left 2 !.include ADA4530.cir

ltspice/transimpedance_amplifier/005transimpedance_ada4530_ac_sweep.asc

@@ -0,0 +1,80 @@
+Version 4
+SHEET 1 880 680
+WIRE 272 -144 208 -144
+WIRE 416 -144 336 -144
+WIRE 48 -32 -32 -32
+WIRE 144 -32 48 -32
+WIRE 208 -32 208 -144
+WIRE 208 -32 144 -32
+WIRE 256 -32 208 -32
+WIRE 416 -32 416 -144
+WIRE 416 -32 336 -32
+WIRE -336 144 -336 128
+WIRE -208 144 -336 144
+WIRE -32 144 -32 -32
+WIRE 48 144 48 -32
+WIRE 144 160 144 -32
+WIRE 272 160 272 128
+WIRE -336 176 -336 144
+WIRE -208 176 -208 144
+WIRE 208 176 208 -32
+WIRE 256 176 208 176
+WIRE 416 192 416 -32
+WIRE 416 192 320 192
+WIRE 256 208 224 208
+WIRE 272 256 272 224
+WIRE -32 272 -32 224
+WIRE 48 272 48 224
+WIRE 48 272 -32 272
+WIRE 144 272 144 224
+WIRE 144 272 48 272
+WIRE 224 272 224 208
+WIRE -32 304 -32 272
+FLAG -32 304 0
+FLAG 224 272 0
+FLAG -208 176 0
+FLAG -336 48 V+
+FLAG -336 256 V-
+FLAG 288 160 V+
+FLAG 416 -32 OUT
+FLAG 272 128 GRD1
+FLAG 272 256 GRD2
+FLAG 288 224 V-
+SYMBOL current -32 144 R0
+WINDOW 123 -14 247 Left 2
+WINDOW 39 0 0 Left 2
+WINDOW 3 -14 219 Left 2
+SYMATTR Value2 AC 100fA
+SYMATTR InstName I1
+SYMATTR Value 10pA
+SYMBOL res 32 128 R0
+SYMATTR InstName R1
+SYMATTR Value 5G
+SYMBOL cap 128 160 R0
+SYMATTR InstName C1
+SYMATTR Value 72p
+SYMBOL res 352 -48 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R2
+SYMATTR Value 10G
+SYMBOL voltage -336 32 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V1
+SYMATTR Value 5
+SYMBOL voltage -336 160 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V2
+SYMATTR Value 5
+SYMBOL opamp_with_guards 288 128 R0
+SYMATTR InstName U1
+SYMATTR Value ADA4530
+SYMBOL cap 336 -160 R90
+WINDOW 0 0 32 VBottom 2
+WINDOW 3 32 32 VTop 2
+SYMATTR InstName C2
+SYMATTR Value 150f
+TEXT -368 328 Left 2 !.ac dec 1s 1Hz 10kHz
+TEXT -368 368 Left 2 !.include ADA4530.cir

ltspice/transimpedance_amplifier/006noninverting_amp_ad8616_ac.asc

@@ -0,0 +1,58 @@
+Version 4
+SHEET 1 880 680
+WIRE 80 96 32 96
+WIRE 224 96 160 96
+WIRE 304 96 224 96
+WIRE 432 96 432 64
+WIRE 432 96 384 96
+WIRE 32 128 32 96
+WIRE -336 144 -336 128
+WIRE -208 144 -336 144
+WIRE -336 176 -336 144
+WIRE -208 176 -208 144
+WIRE 224 176 224 96
+WIRE 256 176 224 176
+WIRE 432 192 432 96
+WIRE 432 192 320 192
+WIRE 256 208 160 208
+WIRE 160 256 160 208
+WIRE 160 368 160 336
+FLAG -208 176 0
+FLAG -336 48 V+
+FLAG -336 256 V-
+FLAG 288 224 V-
+FLAG 288 160 V+
+FLAG 432 64 OUT
+FLAG 32 128 0
+FLAG 160 368 0
+SYMBOL voltage -336 32 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V1
+SYMATTR Value 10
+SYMBOL voltage -336 160 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V2
+SYMATTR Value 10
+SYMBOL res 176 80 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R1
+SYMATTR Value 5.1k
+SYMBOL res 400 80 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R2
+SYMATTR Value 510k
+SYMBOL voltage 160 240 R0
+WINDOW 123 24 124 Left 2
+WINDOW 39 0 0 Left 2
+WINDOW 3 24 44 Left 2
+SYMATTR InstName V3
+SYMATTR Value 0
+SYMBOL Opamps\\opamp2 288 128 R0
+SYMATTR InstName U1
+SYMATTR Value ad8616
+TEXT -368 328 Left 2 !.tran 10s
+TEXT -368 368 Left 2 !.include ad8616.cir

ltspice/transimpedance_amplifier/007transimpedance_ltc6269_one_res.asc

@@ -0,0 +1,64 @@
+Version 4
+SHEET 1 880 680
+WIRE 48 -32 -32 -32
+WIRE 144 -32 48 -32
+WIRE 224 -32 144 -32
+WIRE 256 -32 224 -32
+WIRE 416 -32 336 -32
+WIRE -336 144 -336 128
+WIRE -208 144 -336 144
+WIRE -32 144 -32 -32
+WIRE 48 144 48 -32
+WIRE 144 160 144 -32
+WIRE 224 160 224 -32
+WIRE 256 160 224 160
+WIRE -336 176 -336 144
+WIRE -208 176 -208 144
+WIRE 416 192 416 -32
+WIRE 416 192 400 192
+WIRE 256 224 224 224
+WIRE -32 272 -32 224
+WIRE 48 272 48 224
+WIRE 48 272 -32 272
+WIRE 144 272 144 224
+WIRE 144 272 48 272
+WIRE -32 304 -32 272
+WIRE 224 304 224 224
+FLAG -32 304 0
+FLAG 224 304 0
+FLAG -208 176 0
+FLAG -336 48 V+
+FLAG -336 256 V-
+FLAG 288 112 V+
+FLAG 416 -32 OUT
+FLAG 288 272 0
+SYMBOL current -32 144 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName I1
+SYMATTR Value 0
+SYMBOL res 32 128 R0
+SYMATTR InstName R1
+SYMATTR Value 5G
+SYMBOL cap 128 160 R0
+SYMATTR InstName C1
+SYMATTR Value 72p
+SYMBOL res 352 -48 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R2
+SYMATTR Value 10G
+SYMBOL voltage -336 32 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V1
+SYMATTR Value 5
+SYMBOL voltage -336 160 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V2
+SYMATTR Value 5
+SYMBOL Opamps\\LTC6269 288 192 R0
+SYMATTR InstName U1
+TEXT -368 328 Left 2 !.dc dec I1 10f 1n
+TEXT -368 368 Left 2 !.include ADA4530.cir

ltspice/transimpedance_amplifier/008transimpedance_ada4530_ext_amps_trans.asc

@@ -0,0 +1,160 @@
+Version 4
+SHEET 1 1028 680
+WIRE 48 -288 48 -304
+WIRE 176 -288 48 -288
+WIRE 48 -256 48 -288
+WIRE 176 -256 176 -288
+WIRE 272 -96 208 -96
+WIRE 416 -96 336 -96
+WIRE 80 16 16 16
+WIRE 160 16 80 16
+WIRE 208 16 208 -96
+WIRE 208 16 160 16
+WIRE 272 16 208 16
+WIRE 416 16 416 -96
+WIRE 416 16 352 16
+WIRE 496 16 464 16
+WIRE 592 16 576 16
+WIRE 656 16 592 16
+WIRE 816 16 736 16
+WIRE 848 16 816 16
+WIRE 960 16 928 16
+WIRE 960 48 960 16
+WIRE 464 64 464 16
+WIRE 16 144 16 16
+WIRE 80 144 80 16
+WIRE 160 160 160 16
+WIRE 272 160 272 128
+WIRE 592 160 592 16
+WIRE 656 160 592 160
+WIRE 208 176 208 16
+WIRE 256 176 208 176
+WIRE 816 176 816 16
+WIRE 816 176 720 176
+WIRE 416 192 416 16
+WIRE 416 192 320 192
+WIRE 656 192 416 192
+WIRE 960 192 960 112
+WIRE 256 208 224 208
+WIRE 272 256 272 224
+WIRE 16 272 16 224
+WIRE 80 272 80 224
+WIRE 80 272 16 272
+WIRE 160 272 160 224
+WIRE 160 272 80 272
+WIRE 224 272 224 208
+WIRE 496 288 464 288
+WIRE 592 288 576 288
+WIRE 656 288 592 288
+WIRE 816 288 736 288
+WIRE 848 288 816 288
+WIRE 960 288 928 288
+WIRE 16 304 16 272
+WIRE 960 320 960 288
+WIRE 464 336 464 288
+WIRE 592 432 592 288
+WIRE 656 432 592 432
+WIRE 816 448 816 288
+WIRE 816 448 720 448
+WIRE 416 464 416 192
+WIRE 656 464 416 464
+WIRE 960 464 960 384
+FLAG 16 304 0
+FLAG 224 272 0
+FLAG 176 -256 0
+FLAG 48 -384 V+
+FLAG 48 -176 V-
+FLAG 288 160 V+
+FLAG 416 -96 OUT
+FLAG 272 128 GRD1
+FLAG 272 256 GRD2
+FLAG 288 224 V-
+FLAG 688 208 V-
+FLAG 688 144 V+
+FLAG 464 64 0
+FLAG 688 480 V-
+FLAG 688 416 V+
+FLAG 464 336 0
+FLAG 960 464 0
+FLAG 960 192 0
+FLAG 960 16 OUT2
+FLAG 960 288 OUT3
+SYMBOL current 16 144 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName I1
+SYMATTR Value 0
+SYMBOL res 64 128 R0
+SYMATTR InstName R1
+SYMATTR Value 5G
+SYMBOL cap 144 160 R0
+SYMATTR InstName C1
+SYMATTR Value 72p
+SYMBOL res 368 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R2
+SYMATTR Value 10G
+SYMBOL voltage 48 -400 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V1
+SYMATTR Value 3.3
+SYMBOL voltage 48 -272 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V2
+SYMATTR Value 3.3
+SYMBOL opamp_with_guards 288 128 R0
+SYMATTR InstName U1
+SYMATTR Value ADA4530
+SYMBOL Opamps\\opamp2 688 112 R0
+SYMATTR InstName U2
+SYMATTR Value ADA4522
+SYMBOL res 592 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R3
+SYMATTR Value 5.1k
+SYMBOL res 752 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R4
+SYMATTR Value 510k
+SYMBOL cap 336 -112 R90
+WINDOW 0 0 32 VBottom 2
+WINDOW 3 32 32 VTop 2
+SYMATTR InstName C2
+SYMATTR Value 300f
+SYMBOL Opamps\\opamp2 688 384 R0
+SYMATTR InstName U3
+SYMATTR Value ADA4522
+SYMBOL res 592 272 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R5
+SYMATTR Value 1k
+SYMBOL res 752 272 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R6
+SYMATTR Value 1Meg
+SYMBOL res 944 272 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R7
+SYMATTR Value 4.7k
+SYMBOL res 944 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R8
+SYMATTR Value 4.7k
+SYMBOL cap 944 48 R0
+SYMATTR InstName C3
+SYMATTR Value 100n
+SYMBOL cap 944 320 R0
+SYMATTR InstName C4
+SYMATTR Value 100n
+TEXT 240 -352 Left 2 !.dc dec I1 10f 1n
+TEXT 240 -320 Left 2 !.include ADA4530.cir
+TEXT 240 -384 Left 2 !.include ADA4522.cir

ltspice/transimpedance_amplifier/009transimpedance_ada4530_ext_amps_ac.asc

@@ -0,0 +1,161 @@
+Version 4
+SHEET 1 1028 680
+WIRE 48 -288 48 -304
+WIRE 176 -288 48 -288
+WIRE 48 -256 48 -288
+WIRE 176 -256 176 -288
+WIRE 272 -96 208 -96
+WIRE 416 -96 336 -96
+WIRE 80 16 16 16
+WIRE 160 16 80 16
+WIRE 208 16 208 -96
+WIRE 208 16 160 16
+WIRE 272 16 208 16
+WIRE 416 16 416 -96
+WIRE 416 16 352 16
+WIRE 496 16 464 16
+WIRE 592 16 576 16
+WIRE 656 16 592 16
+WIRE 816 16 736 16
+WIRE 848 16 816 16
+WIRE 960 16 928 16
+WIRE 960 48 960 16
+WIRE 464 64 464 16
+WIRE 16 144 16 16
+WIRE 80 144 80 16
+WIRE 160 160 160 16
+WIRE 272 160 272 128
+WIRE 592 160 592 16
+WIRE 656 160 592 160
+WIRE 208 176 208 16
+WIRE 256 176 208 176
+WIRE 816 176 816 16
+WIRE 816 176 720 176
+WIRE 416 192 416 16
+WIRE 416 192 320 192
+WIRE 656 192 416 192
+WIRE 960 192 960 112
+WIRE 256 208 224 208
+WIRE 272 256 272 224
+WIRE 16 272 16 224
+WIRE 80 272 80 224
+WIRE 80 272 16 272
+WIRE 160 272 160 224
+WIRE 160 272 80 272
+WIRE 224 272 224 208
+WIRE 496 288 464 288
+WIRE 592 288 576 288
+WIRE 656 288 592 288
+WIRE 816 288 736 288
+WIRE 848 288 816 288
+WIRE 960 288 928 288
+WIRE 16 304 16 272
+WIRE 960 320 960 288
+WIRE 464 336 464 288
+WIRE 592 432 592 288
+WIRE 656 432 592 432
+WIRE 816 448 816 288
+WIRE 816 448 720 448
+WIRE 416 464 416 192
+WIRE 656 464 416 464
+WIRE 960 464 960 384
+FLAG 16 304 0
+FLAG 224 272 0
+FLAG 176 -256 0
+FLAG 48 -384 V+
+FLAG 48 -176 V-
+FLAG 288 160 V+
+FLAG 416 -96 OUT
+FLAG 272 128 GRD1
+FLAG 272 256 GRD2
+FLAG 288 224 V-
+FLAG 688 208 V-
+FLAG 688 144 V+
+FLAG 464 64 0
+FLAG 688 480 V-
+FLAG 688 416 V+
+FLAG 464 336 0
+FLAG 960 464 0
+FLAG 960 192 0
+FLAG 960 16 OUT2
+FLAG 960 288 OUT3
+SYMBOL current 16 144 R0
+WINDOW 123 24 108 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR Value2 AC 10pA
+SYMATTR InstName I1
+SYMATTR Value 0
+SYMBOL res 64 128 R0
+SYMATTR InstName R1
+SYMATTR Value 5G
+SYMBOL cap 144 160 R0
+SYMATTR InstName C1
+SYMATTR Value 72p
+SYMBOL res 368 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R2
+SYMATTR Value 10G
+SYMBOL voltage 48 -400 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V1
+SYMATTR Value 3.3
+SYMBOL voltage 48 -272 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V2
+SYMATTR Value 3.3
+SYMBOL opamp_with_guards 288 128 R0
+SYMATTR InstName U1
+SYMATTR Value ADA4530
+SYMBOL Opamps\\opamp2 688 112 R0
+SYMATTR InstName U2
+SYMATTR Value ADA4522
+SYMBOL res 592 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R3
+SYMATTR Value 5.1k
+SYMBOL res 752 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R4
+SYMATTR Value 510k
+SYMBOL cap 336 -112 R90
+WINDOW 0 0 32 VBottom 2
+WINDOW 3 32 32 VTop 2
+SYMATTR InstName C2
+SYMATTR Value 30f
+SYMBOL Opamps\\opamp2 688 384 R0
+SYMATTR InstName U3
+SYMATTR Value ADA4522
+SYMBOL res 592 272 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R5
+SYMATTR Value 1k
+SYMBOL res 752 272 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R6
+SYMATTR Value 1Meg
+SYMBOL res 944 272 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R7
+SYMATTR Value 4.7k
+SYMBOL res 944 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R8
+SYMATTR Value 4.7k
+SYMBOL cap 944 48 R0
+SYMATTR InstName C3
+SYMATTR Value 100n
+SYMBOL cap 944 320 R0
+SYMATTR InstName C4
+SYMATTR Value 100n
+TEXT 240 -352 Left 2 !.ac dec 100 1Hz 10kHz
+TEXT 240 -320 Left 2 !.include ADA4530.cir
+TEXT 240 -288 Left 2 !.include ADA4522.cir

ltspice/transimpedance_amplifier/010transimpedance_ada4530_ext_amps_pulsing.asc

@@ -0,0 +1,161 @@
+Version 4
+SHEET 1 1028 680
+WIRE 48 -288 48 -304
+WIRE 176 -288 48 -288
+WIRE 48 -256 48 -288
+WIRE 176 -256 176 -288
+WIRE 272 -96 208 -96
+WIRE 416 -96 336 -96
+WIRE 80 16 16 16
+WIRE 160 16 80 16
+WIRE 208 16 208 -96
+WIRE 208 16 160 16
+WIRE 272 16 208 16
+WIRE 416 16 416 -96
+WIRE 416 16 352 16
+WIRE 496 16 464 16
+WIRE 592 16 576 16
+WIRE 656 16 592 16
+WIRE 816 16 736 16
+WIRE 848 16 816 16
+WIRE 960 16 928 16
+WIRE 960 48 960 16
+WIRE 464 64 464 16
+WIRE 16 144 16 16
+WIRE 80 144 80 16
+WIRE 160 160 160 16
+WIRE 272 160 272 128
+WIRE 592 160 592 16
+WIRE 656 160 592 160
+WIRE 208 176 208 16
+WIRE 256 176 208 176
+WIRE 816 176 816 16
+WIRE 816 176 720 176
+WIRE 416 192 416 16
+WIRE 416 192 320 192
+WIRE 656 192 416 192
+WIRE 960 192 960 112
+WIRE 256 208 224 208
+WIRE 272 256 272 224
+WIRE 16 272 16 224
+WIRE 80 272 80 224
+WIRE 80 272 16 272
+WIRE 160 272 160 224
+WIRE 160 272 80 272
+WIRE 224 272 224 208
+WIRE 496 288 464 288
+WIRE 592 288 576 288
+WIRE 656 288 592 288
+WIRE 816 288 736 288
+WIRE 848 288 816 288
+WIRE 960 288 928 288
+WIRE 16 304 16 272
+WIRE 960 320 960 288
+WIRE 464 336 464 288
+WIRE 592 432 592 288
+WIRE 656 432 592 432
+WIRE 816 448 816 288
+WIRE 816 448 720 448
+WIRE 416 464 416 192
+WIRE 656 464 416 464
+WIRE 960 464 960 384
+FLAG 16 304 0
+FLAG 224 272 0
+FLAG 176 -256 0
+FLAG 48 -384 V+
+FLAG 48 -176 V-
+FLAG 288 160 V+
+FLAG 416 -96 OUT
+FLAG 272 128 GRD1
+FLAG 272 256 GRD2
+FLAG 288 224 V-
+FLAG 688 208 V-
+FLAG 688 144 V+
+FLAG 464 64 0
+FLAG 688 480 V-
+FLAG 688 416 V+
+FLAG 464 336 0
+FLAG 960 464 0
+FLAG 960 192 0
+FLAG 960 16 OUT2
+FLAG 960 288 OUT3
+SYMBOL current 16 144 R0
+WINDOW 123 24 108 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR Value2 AC 10pA
+SYMATTR InstName I1
+SYMATTR Value 0
+SYMBOL res 64 128 R0
+SYMATTR InstName R1
+SYMATTR Value 5G
+SYMBOL cap 144 160 R0
+SYMATTR InstName C1
+SYMATTR Value 72p
+SYMBOL res 368 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R2
+SYMATTR Value 10G
+SYMBOL voltage 48 -400 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V1
+SYMATTR Value 3.3
+SYMBOL voltage 48 -272 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V2
+SYMATTR Value 3.3
+SYMBOL opamp_with_guards 288 128 R0
+SYMATTR InstName U1
+SYMATTR Value ADA4530
+SYMBOL Opamps\\opamp2 688 112 R0
+SYMATTR InstName U2
+SYMATTR Value ADA4522
+SYMBOL res 592 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R3
+SYMATTR Value 5.1k
+SYMBOL res 752 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R4
+SYMATTR Value 510k
+SYMBOL Opamps\\opamp2 688 384 R0
+SYMATTR InstName U3
+SYMATTR Value ADA4522
+SYMBOL res 592 272 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R5
+SYMATTR Value 1k
+SYMBOL res 752 272 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R6
+SYMATTR Value 1Meg
+SYMBOL res 944 272 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R7
+SYMATTR Value 4.7k
+SYMBOL res 944 0 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R8
+SYMATTR Value 4.7k
+SYMBOL cap 944 48 R0
+SYMATTR InstName C3
+SYMATTR Value 100n
+SYMBOL cap 944 320 R0
+SYMATTR InstName C4
+SYMATTR Value 100n
+SYMBOL cap 336 -112 R90
+WINDOW 0 0 32 VBottom 2
+WINDOW 3 32 32 VTop 2
+SYMATTR InstName C2
+SYMATTR Value 30f
+TEXT 240 -352 Left 2 !.ac dec 100 1Hz 10kHz
+TEXT 240 -320 Left 2 !.include ADA4530.cir
+TEXT 240 -288 Left 2 !.include ADA4522.cir

ltspice/transimpedance_amplifier/ADA4522.cir

@@ -0,0 +1,132 @@
+* ADA4522-4 SPICE Macro-model
+* Description: Amplifier
+* Generic Desc: HV, ZD, Low Noise, Non-RRin, RRout
+* Developed by: JG ADGT / VW ADSJ
+* Revision History: 
+* 05/18/2015 - initial release for dual
+* 10/27/2015 - initial release for quad
+* 0.0 (05/2015)
+* Copyright 2015 by Analog Devices
+* T=25°C
+*
+* Refer to "README.DOC" file for License Statement.  Use of this
+* model indicates your acceptance of the terms and provisions in
+* the License Statement.
+*
+* Node Assignments
+*                       noninverting input
+*                       |   inverting input
+*                       |   |    positive supply
+*                       |   |    |   negative supply
+*                       |   |    |   |   output
+*                       |   |    |   |   |
+*                       |   |    |   |   |
+.SUBCKT ADA4522         1   2   99  50  45
+*#ASSOC Category=Op-amp symbol=opamp
+*
+* INPUT STAGE
+*
+M1   4  7  8  8 PIX L=1E-6 W=1.18E-04
+M2   6  2  8  8 PIX L=1E-6 W=1.18E-04
+M3  14  7 18 18 NIX L=1E-6 W=1.18E-04
+M4  16  2 18 18 NIX L=1E-6 W=1.18E-04
+RD1  4 50 1.33E+04
+RD2  6 50 1.33E+04
+RD3 99 14 1.33E+04
+RD4 99 16 1.33E+04
+C1 4  6 6.7E-13
+C2 14 16 6.7E-13
+I1 99  8 3.00E-05
+I2 18 50 3.00E-05
+V1 99  9 2.113E+00 
+V2 19 50 1.203E-01 
+D1 8  9 DX
+D2 19 18 DX
+EOS 7 1 POLY(4) (73,98) (22,98) (81,98) (83,98) -9.1E-06 0.1 0.1 0.1 0.1
+IOS 1  2 100E-12
+V5 99 3 2.2
+D5 1 3 DX
+D6 50 1 DX
+V6 99 100 2.2
+D7 2 100 DX
+D8 50 2 DX
+Ccm1 1 50 35E-12
+Ccm2 2 50 35E-12
+Cdm 1 2 7.0E-12
+*
+*CMRR
+*
+E1  72 98 POLY(2) (1,98) (2,98) 0 5.25E-03 5.25E-03
+R10 72 73 1.89E+02
+R20 73 98 4.8E-01
+C10 72 73 1.00E-06
+*
+* PSRR
+*
+EPSY 21 98 POLY(1) (99,50) -2.712E-00 2.4
+RPS1 21 22 1.59E+05
+RPS2 22 98 3.18E-01
+CPS1 21 22 1.00E-06
+*
+*
+* VOLTAGE NOISE REFERENCE
+*
+VN1 80 98 0
+RN1 80 98  265E-05
+HN  81 98 VN1 6.6E0
+RNHH1 81 183 5.3
+CHH1 183 98 1E-012
+*
+*BPF
+*
+EV5 83 98 VALUE = { V(203,98)+V(205,98) }
+R94 204 98 300
+L92 200 210 6.0e-006
+C92 210 204 9e-011
+R93 200 204 5.5E03 
+EV4 205 98 204 98 10.5
+EV3 203 98 202 98 5.5
+R92 202 98 200    
+L91 200 201 3.0e-005
+C91 201 202 10e-010
+R91 200 202 1E03
+EV1 200 98 81 98 1
+*
+* INTERNAL VOLTAGE REFERENCE
+*
+EREF 98  0 POLY(2) (99,0) (50,0) 0 0.5 0.5
+GSY  99 50 POLY(1) (99,50) 805.1E-06 -1.55E-9
+*
+* GAIN STAGE
+*
+G1 98 30 POLY(2) (4,6) (14,16) 0 7.103E-03 7.103E-03
+R1 30 98 1.00E+06
+RZ 455 31 0.195E+00
+CF 30 31 4.05E-9
+EZ 455 98 (45,98) 1
+V3 32 30 -7.5E-04
+V4 30 33 -4.9E-04
+D3 32 98 DX
+D4 98 33 DX
+*
+* OUTPUT STAGE
+*
+M5  45 46 99 99 POX L=3E-6 W=20E-04
+M6  45 47 50 50 NOX L=3E-6 W=40E-04
+EG1 99 46 POLY(1) (98,30) 8.523E-01 1
+EG2 47 50 POLY(1) (30,98) 8.523E-01 1
+*EG1 99 46 POLY(1) (98,30) 8.523E-01 1
+*EG2 47 50 POLY(1) (30,98) 8.523E-01 1
+*
+* MODELS
+*
+.MODEL POX PMOS (LEVEL=2,KP=4.00E-05,VTO=-0.83,LAMBDA=0.047,RD=7)
+.MODEL NOX NMOS (LEVEL=2,KP=4.00E-05,VTO=+0.83,LAMBDA=0.047,RD=38)
+.MODEL PIX PMOS (LEVEL=2,KP=1.50E-05,VTO=-0.5,LAMBDA=0.047)
+.MODEL NIX NMOS (LEVEL=2,KP=4.00E-05,VTO=0.5,LAMBDA=0.022)
+.MODEL DX D(IS=1E-14,RS=0.1)
+*
+*
+.ENDS ADA4522
+*
+*$