The new and improved version with fewer components is 127dB down at 2kHz and lower than that elsewhere.

Bill is invited to improve it by changing the FET to a current mirror circuit.

Version 4.1
SHEET 1 3828 932
WIRE 976 -816 816 -816
WIRE 1056 -816 1056 -848
WIRE 880 -752 880 -768
WIRE 976 -736 976 -816
WIRE 976 -736 912 -736
WIRE 816 -720 816 -816
WIRE 816 -720 720 -720
WIRE 848 -720 816 -720
WIRE 1056 -704 1056 -736
WIRE 1056 -704 912 -704
WIRE 336 -672 256 -672
WIRE 480 -672 400 -672
WIRE 720 -672 720 -720
WIRE 1056 -672 1056 -704
WIRE 1168 -672 1056 -672
WIRE 880 -656 880 -688
WIRE 1056 -656 1056 -672
WIRE 1168 -640 1168 -672
WIRE 256 -576 256 -672
WIRE 336 -576 256 -576
WIRE 480 -576 480 -672
WIRE 480 -576 416 -576
WIRE 1056 -544 1056 -576
WIRE 1168 -544 1168 -576
WIRE -192 -480 -192 -512
WIRE 384 -464 384 -480
WIRE 480 -448 480 -576
WIRE 480 -448 416 -448
WIRE 576 -448 480 -448
WIRE 720 -448 720 -592
WIRE 720 -448 576 -448
WIRE 1168 -448 720 -448
WIRE 1664 -448 1168 -448
WIRE 2256 -448 1664 -448
WIRE 256 -432 256 -576
WIRE 352 -432 256 -432
WIRE 448 -416 416 -416
WIRE 464 -416 448 -416
WIRE 576 -400 576 -448
WIRE 1168 -400 1168 -448
WIRE -416 -384 -416 -480
WIRE 1664 -384 1664 -448
WIRE 2256 -384 2256 -448
WIRE -336 -368 -336 -400
WIRE 384 -368 384 -400
WIRE 1376 -368 1328 -368
WIRE 1520 -368 1456 -368
WIRE 1968 -368 1920 -368
WIRE 2112 -368 2048 -368
WIRE 16 -352 -144 -352
WIRE 576 -288 576 -320
WIRE 1168 -288 1168 -320
WIRE -336 -272 -336 -304
WIRE -80 -272 -80 -304
WIRE 1328 -272 1328 -368
WIRE 1376 -272 1328 -272
WIRE 1520 -272 1520 -368
WIRE 1520 -272 1440 -272
WIRE 1664 -272 1664 -304
WIRE 1920 -272 1920 -368
WIRE 1968 -272 1920 -272
WIRE 2112 -272 2112 -368
WIRE 2112 -272 2032 -272
WIRE 2256 -272 2256 -304
WIRE -144 -256 -144 -352
WIRE -112 -256 -144 -256
WIRE 16 -240 16 -352
WIRE 16 -240 -48 -240
WIRE 48 -240 16 -240
WIRE 64 -240 48 -240
WIRE 256 -240 256 -432
WIRE -192 -224 -192 -400
WIRE -112 -224 -192 -224
WIRE -416 -208 -416 -304
WIRE 976 -192 880 -192
WIRE 1168 -192 1168 -224
WIRE 1168 -192 1040 -192
WIRE -192 -176 -192 -224
WIRE -192 -176 -256 -176
WIRE -80 -176 -80 -208
WIRE 1408 -160 1408 -176
WIRE 2000 -160 2000 -176
WIRE -192 -144 -192 -176
WIRE 1328 -144 1328 -272
WIRE 1328 -144 1264 -144
WIRE 1376 -144 1328 -144
WIRE 1920 -144 1920 -272
WIRE 1920 -144 1856 -144
WIRE 1968 -144 1920 -144
WIRE -256 -128 -256 -176
WIRE 1520 -128 1520 -272
WIRE 1520 -128 1440 -128
WIRE 1664 -128 1664 -208
WIRE 1664 -128 1520 -128
WIRE 2112 -128 2112 -272
WIRE 2112 -128 2032 -128
WIRE 2256 -128 2256 -208
WIRE 2256 -128 2112 -128
WIRE 1264 -112 1264 -144
WIRE 1376 -112 1328 -112
WIRE 1856 -112 1856 -144
WIRE 1968 -112 1920 -112
WIRE 448 -96 384 -96
WIRE 576 -96 576 -224
WIRE 576 -96 512 -96
WIRE 880 -96 880 -192
WIRE 976 -96 880 -96
WIRE 1168 -96 1168 -192
WIRE 1168 -96 1056 -96
WIRE 208 -80 160 -80
WIRE 256 -80 256 -160
WIRE 256 -80 208 -80
WIRE 1408 -64 1408 -96
WIRE 2000 -64 2000 -96
WIRE -256 -32 -256 -64
WIRE -192 -32 -192 -64
WIRE 160 -32 160 -80
WIRE 384 0 384 -96
WIRE 448 0 384 0
WIRE 576 0 576 -96
WIRE 576 0 528 0
WIRE 880 0 880 -96
WIRE 928 0 880 0
WIRE 1040 0 1008 0
WIRE 1168 0 1168 -96
WIRE 1168 0 1120 0
WIRE 256 64 256 -80
WIRE 464 96 464 80
WIRE 128 112 112 112
WIRE 160 112 160 48
WIRE 160 112 128 112
WIRE 192 112 160 112
WIRE 304 112 288 112
WIRE 336 112 304 112
WIRE 384 112 384 0
WIRE 384 112 336 112
WIRE 432 112 384 112
WIRE 960 112 960 96
WIRE 576 128 576 0
WIRE 576 128 496 128
WIRE 640 128 576 128
WIRE 672 128 640 128
WIRE 752 128 736 128
WIRE 880 128 880 0
WIRE 880 128 832 128
WIRE 928 128 880 128
WIRE 400 144 384 144
WIRE 432 144 400 144
WIRE 1168 144 1168 0
WIRE 1168 144 992 144
WIRE 1328 144 1328 -112
WIRE 1760 144 1328 144
WIRE 1920 144 1920 -112
WIRE 2352 144 1920 144
WIRE 928 160 880 160
WIRE 112 192 112 112
WIRE 192 192 112 192
WIRE 336 192 336 112
WIRE 336 192 272 192
WIRE 464 192 464 160
WIRE 960 208 960 176
WIRE 640 256 640 128
WIRE 1264 256 1264 -32
WIRE 1264 256 640 256
WIRE 112 288 112 192
WIRE 192 288 112 288
WIRE 336 288 272 288
WIRE 464 288 416 288
WIRE 1168 288 1168 144
WIRE 1168 288 464 288
WIRE 1856 288 1856 -32
WIRE 1856 288 1168 288
WIRE 2432 288 1856 288
WIRE 2560 288 2512 288
WIRE 2720 288 2624 288
WIRE 2784 288 2720 288
WIRE 880 352 880 160
WIRE 1168 352 880 352
WIRE 1664 352 1664 -128
WIRE 1664 352 1344 352
WIRE 2256 352 2256 -128
WIRE 2256 352 1936 352
WIRE 2784 352 2784 288
WIRE 640 368 640 256
WIRE 720 368 640 368
WIRE 464 400 464 288
WIRE 640 400 640 368
WIRE 720 400 720 368
WIRE 1344 400 1344 352
WIRE 1936 400 1936 352
WIRE 2784 448 2784 432
WIRE 1024 480 1008 480
WIRE 1056 480 1024 480
WIRE 1168 480 1168 352
WIRE 1168 480 1136 480
WIRE 1600 480 1568 480
WIRE 1648 480 1600 480
WIRE 1760 480 1760 144
WIRE 1760 480 1728 480
WIRE 2192 480 2160 480
WIRE 2240 480 2192 480
WIRE 2352 480 2352 144
WIRE 2352 480 2320 480
WIRE 640 512 640 480
WIRE 720 512 720 480
WIRE 720 512 640 512
WIRE 464 528 464 480
WIRE 640 528 640 512
WIRE 1344 528 1344 480
WIRE 1936 528 1936 480
WIRE 848 544 832 544
WIRE 1024 544 912 544
WIRE 1440 544 1424 544
WIRE 1616 544 1504 544
WIRE 2032 544 2016 544
WIRE 2208 544 2096 544
WIRE 944 624 944 592
WIRE 1536 624 1536 592
WIRE 2128 624 2128 592
WIRE 464 640 464 592
WIRE 832 640 832 544
WIRE 832 640 464 640
WIRE 912 640 832 640
WIRE 1344 640 1344 592
WIRE 1424 640 1424 544
WIRE 1424 640 1344 640
WIRE 1504 640 1424 640
WIRE 1936 640 1936 592
WIRE 2016 640 2016 544
WIRE 2016 640 1936 640
WIRE 2096 640 2016 640
WIRE 464 656 464 640
WIRE 464 656 320 656
WIRE 1024 656 1024 544
WIRE 1024 656 976 656
WIRE 1056 656 1024 656
WIRE 1168 656 1168 480
WIRE 1168 656 1136 656
WIRE 1616 656 1616 544
WIRE 1616 656 1568 656
WIRE 1648 656 1616 656
WIRE 1760 656 1760 480
WIRE 1760 656 1728 656
WIRE 2208 656 2208 544
WIRE 2208 656 2160 656
WIRE 2240 656 2208 656
WIRE 2352 656 2352 480
WIRE 2352 656 2320 656
WIRE 640 672 640 592
WIRE 912 672 640 672
WIRE 1504 672 1456 672
WIRE 2096 672 2048 672
WIRE 464 704 464 656
WIRE 464 704 416 704
WIRE 640 704 640 672
WIRE 640 704 592 704
WIRE 1168 704 1168 656
WIRE 1344 704 1344 640
WIRE 1344 704 1296 704
WIRE 1760 704 1760 656
WIRE 1936 704 1936 640
WIRE 1936 704 1888 704
WIRE 2352 704 2352 656
WIRE 464 720 464 704
WIRE 640 720 640 704
WIRE 944 720 944 688
WIRE 1344 720 1344 704
WIRE 1536 720 1536 688
WIRE 1936 720 1936 704
WIRE 2128 720 2128 688
WIRE 416 736 416 704
WIRE 592 736 592 704
WIRE 1296 736 1296 704
WIRE 1888 736 1888 704
WIRE 1168 784 1168 768
WIRE 1760 784 1760 768
WIRE 2352 784 2352 768
WIRE 416 832 416 800
WIRE 464 832 464 800
WIRE 464 832 416 832
WIRE 592 832 592 800
WIRE 640 832 640 800
WIRE 640 832 592 832
WIRE 1296 832 1296 800
WIRE 1344 832 1344 800
WIRE 1344 832 1296 832
WIRE 1888 832 1888 800
WIRE 1936 832 1936 800
WIRE 1936 832 1888 832
WIRE 464 864 464 832
WIRE 640 864 640 832
WIRE 1344 864 1344 832
WIRE 1936 864 1936 832
WIRE 320 912 320 656
WIRE 1456 912 1456 672
WIRE 1456 912 320 912
WIRE 2048 912 2048 672
WIRE 2048 912 1456 912
FLAG 384 -480 V+
FLAG 464 80 V+
FLAG 960 96 V+
FLAG 208 -80 gate
FLAG 128 112 drn
FLAG 2784 448 0
FLAG 2720 288 output
FLAG -416 -208 0
FLAG 384 -368 0
FLAG 464 192 0
FLAG 960 208 0
FLAG -416 -480 V+
FLAG 448 -416 half
FLAG 400 144 half
FLAG 1024 480 half
FLAG -80 -176 0
FLAG -80 -304 V+
FLAG 48 -240 half
FLAG -192 -32 0
FLAG -192 -512 V+
FLAG -256 -32 0
FLAG 304 112 src
FLAG 880 -768 V+
FLAG 880 -656 0
FLAG 1056 -544 0
FLAG 1056 -848 V+
FLAG 1168 -544 0
FLAG 1168 784 0
FLAG 464 864 0
FLAG 944 592 V+
FLAG 944 720 0
FLAG 1408 -176 V+
FLAG 1408 -64 0
FLAG 1600 480 half
FLAG 1760 784 0
FLAG 1344 864 0
FLAG 1536 592 V+
FLAG 1536 720 0
FLAG 2000 -176 V+
FLAG 2000 -64 0
FLAG 2192 480 half
FLAG 2352 784 0
FLAG 1936 864 0
FLAG 2128 592 V+
FLAG 2128 720 0
FLAG 640 864 0
FLAG -336 -272 0
FLAG -336 -400 V+
SYMBOL njf 192 64 M90
WINDOW 0 -37 23 VRight 2
WINDOW 3 -9 -3 VRight 2
SYMATTR InstName J1
SYMATTR Value J113
SYMBOL voltage -416 -400 R0
WINDOW 123 0 0 Left 0
WINDOW 39 10 135 Left 2
WINDOW 0 10 0 Left 2
WINDOW 3 15 104 Left 2
SYMATTR InstName V2
SYMATTR Value 36
SYMBOL schottky 1184 -224 R180
WINDOW 3 24 0 Left 2
WINDOW 0 24 64 Left 2
SYMATTR Value BAS40HY
SYMATTR InstName D2
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 176 176 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 22
SYMBOL res 176 -48 M0
WINDOW 0 38 42 Left 2
WINDOW 3 36 66 Left 2
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL res 272 -144 R180
WINDOW 0 40 70 Left 2
WINDOW 3 45 42 Left 2
SYMATTR InstName R1
SYMATTR Value 100k
SYMBOL res 320 -560 R270
WINDOW 0 33 55 VTop 2
WINDOW 3 -3 55 VBottom 2
SYMATTR InstName R4
SYMATTR Value 100k
SYMBOL res 1184 -304 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R6
SYMATTR Value 100k
SYMBOL cap 400 -688 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 10000n
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0 Lser=0 mfg="Murata" pn="GRM185R60J106ME15" type="X5R"
SYMBOL res 1072 -112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 15k
SYMBOL res 848 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R12
SYMATTR Value 8.2K
SYMBOL cap 1040 -208 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 10n
SYMATTR SpiceLine V=16 Irms=647m Rser=0.0322889 Lser=0 mfg="KEMET" pn="C0201C103K4PAC" type="X5R"
SYMBOL cap 736 112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 22n
SYMATTR SpiceLine V=4 Irms=356m Rser=0.150334 Lser=0 mfg="KEMET" pn="C0402C223K7PAC" type="X5R"
SYMBOL res 544 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 10k
SYMBOL cap 512 -112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 22p
SYMATTR SpiceLine V=16 Irms=0 Rser=0.3482 Lser=551p mfg="Würth Elektronik" pn="885012006019 WCAP-CSGP 0603" type="NP0"
SYMBOL res 432 272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R14
SYMATTR Value 1371
SYMBOL res 704 -688 R0
SYMATTR InstName R17
SYMATTR Value 100k
SYMBOL res 2528 272 R90
WINDOW 0 -4 57 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 600
SYMBOL res 2800 448 R180
WINDOW 0 47 75 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R8
SYMATTR Value 600
SYMBOL res -208 -384 M180
WINDOW 0 40 70 Left 2
WINDOW 3 37 41 Left 2
SYMATTR InstName R5
SYMATTR Value 100k
SYMBOL res -208 -48 M180
WINDOW 0 40 70 Left 2
WINDOW 3 38 43 Left 2
SYMATTR InstName R10
SYMATTR Value 100k
SYMBOL cap -240 -64 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C1
SYMATTR Value 10n
SYMATTR SpiceLine V=50 Irms=291m Rser=0.34258 Lser=0 mfg="KEMET" pn="C0805F103K5RAC" type="X7R"
SYMBOL cap 2624 272 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 10000n
SYMATTR SpiceLine V=25 Irms=0 Rser=0 Lser=0 mfg="Murata" pn="GRM188R61E106MA73" type="X5R"
SYMBOL res 1024 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 150k
SYMBOL res 288 272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R15
SYMATTR Value 8.2k
SYMBOL res 1136 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R16
SYMATTR Value 47k
SYMBOL OpAmps\\LT1058 -80 -304 R0
SYMATTR InstName U5
SYMBOL OpAmps\\LT1058 384 -496 M0
SYMATTR InstName U6
SYMBOL OpAmps\\LT1058 880 -784 M0
WINDOW 0 -79 26 Left 2
WINDOW 3 -120 114 Left 2
SYMATTR InstName U1
SYMBOL res 1040 -832 R0
SYMATTR InstName R19
SYMATTR Value 120k
SYMBOL res 1040 -672 R0
SYMATTR InstName R20
SYMATTR Value 100k
SYMBOL cap 1152 -576 M180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C7
SYMATTR Value 10n
SYMATTR SpiceLine V=50 Irms=291m Rser=0.34258 Lser=0 mfg="KEMET" pn="C0805F103K5RAC" type="X7R"
SYMBOL OpAmps\\LT1115 464 64 R0
SYMATTR InstName U4
SYMBOL OpAmps\\LT1115 960 80 R0
SYMATTR InstName U3
SYMBOL schottky 592 -224 R180
WINDOW 3 24 0 Left 2
WINDOW 0 24 64 Left 2
SYMATTR Value BAS40HY
SYMATTR InstName D1
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 592 -304 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R18
SYMATTR Value 100k
SYMBOL schottky 656 528 M0
SYMATTR Value BAS40HY
SYMATTR InstName D5
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 624 704 R0
SYMATTR InstName R21
SYMATTR Value 820k
SYMBOL schottky 480 528 M0
SYMATTR Value BAS40HY
SYMATTR InstName D6
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 448 704 R0
WINDOW 0 39 28 Left 2
WINDOW 3 41 58 Left 2
SYMATTR InstName R22
SYMATTR Value 820k
SYMBOL res 1152 464 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R23
SYMATTR Value 100k
SYMBOL OpAmps\\LT1058 944 592 R0
SYMATTR InstName U2
SYMBOL res 1040 640 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R24
SYMATTR Value 820k
SYMBOL cap 608 736 M0
WINDOW 0 27 51 Left 2
WINDOW 3 21 77 Left 2
SYMATTR InstName C9
SYMATTR Value 1000n
SYMBOL cap 432 736 M0
SYMATTR InstName C10
SYMATTR Value 1000n
SYMBOL cap 1184 768 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C8
SYMATTR Value 1000n
SYMBOL res 656 496 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R25
SYMATTR Value 10k
SYMBOL res 480 496 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R26
SYMATTR Value 10k
SYMBOL res 1280 -128 M0
SYMATTR InstName R27
SYMATTR Value 1.5k
SYMBOL cap 1440 -288 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C12
SYMATTR Value 100n
SYMBOL schottky 1680 -208 R180
WINDOW 3 24 0 Left 2
WINDOW 0 24 64 Left 2
SYMATTR Value BAS40HY
SYMATTR InstName D3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 1680 -288 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R36
SYMATTR Value 100k
SYMBOL res 1472 -384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R29
SYMATTR Value 100k
SYMBOL schottky 1360 528 M0
SYMATTR Value BAS40HY
SYMATTR InstName D8
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 1328 704 R0
SYMATTR InstName R31
SYMATTR Value 820k
SYMBOL res 1744 464 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R32
SYMATTR Value 100k
SYMBOL OpAmps\\LT1058 1536 592 R0
SYMATTR InstName U8
SYMBOL res 1632 640 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R33
SYMATTR Value 820k
SYMBOL cap 1312 736 M0
SYMATTR InstName C15
SYMATTR Value 1000n
SYMBOL cap 1776 768 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C17
SYMATTR Value 1000n
SYMBOL res 1360 496 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R35
SYMATTR Value 10k
SYMBOL cap 2032 -288 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C18
SYMATTR Value 100n
SYMBOL schottky 2272 -208 R180
WINDOW 3 24 0 Left 2
WINDOW 0 24 64 Left 2
SYMATTR Value BAS40HY
SYMATTR InstName D4
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 2272 -288 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R38
SYMATTR Value 100k
SYMBOL res 2064 -384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R39
SYMATTR Value 100k
SYMBOL schottky 1952 528 M0
SYMATTR Value BAS40HY
SYMATTR InstName D10
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 1920 704 R0
SYMATTR InstName R41
SYMATTR Value 820k
SYMBOL res 2336 464 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R42
SYMATTR Value 100k
SYMBOL OpAmps\\LT1058 2128 592 R0
SYMATTR InstName U10
SYMBOL res 2224 640 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R43
SYMATTR Value 820k
SYMBOL cap 1904 736 M0
SYMATTR InstName C21
SYMATTR Value 1000n
SYMBOL cap 2368 768 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C23
SYMATTR Value 1000n
SYMBOL res 1952 496 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R45
SYMATTR Value 10k
SYMBOL res 1872 -128 M0
SYMATTR InstName R46
SYMATTR Value 1.5k
SYMBOL OpAmps\\LT1058 1408 -192 R0
SYMATTR InstName U7
SYMBOL OpAmps\\LT1058 2000 -192 R0
SYMATTR InstName U9
SYMBOL cap 912 528 R90
WINDOW 0 8 66 VBottom 2
WINDOW 3 -18 -26 VTop 2
SYMATTR InstName C11
SYMATTR Value 10000n
SYMATTR SpiceLine V=25 Irms=0 Rser=0 Lser=0 mfg="Murata" pn="GRM188R61E106MA73" type="X5R"
SYMBOL cap 1504 528 R90
WINDOW 0 6 70 VBottom 2
WINDOW 3 -22 -25 VTop 2
SYMATTR InstName C13
SYMATTR Value 10000n
SYMATTR SpiceLine V=25 Irms=0 Rser=0 Lser=0 mfg="Murata" pn="GRM188R61E106MA73" type="X5R"
SYMBOL cap 2096 528 R90
WINDOW 0 8 70 VBottom 2
WINDOW 3 -19 -25 VTop 2
SYMATTR InstName C14
SYMATTR Value 10000n
SYMATTR SpiceLine V=25 Irms=0 Rser=0 Lser=0 mfg="Murata" pn="GRM188R61E106MA73" type="X5R"
SYMBOL cap -352 -304 M180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C16
SYMATTR Value 10000n
SYMATTR SpiceLine V=25 Irms=0 Rser=0 Lser=0 mfg="Murata" pn="GRM188R61E106MA73" type="X5R"
SYMBOL res 704 384 R0
SYMATTR InstName R28
SYMATTR Value 560k
TEXT -496 136 Left 2 !.tran 0 20 0 1u uic
TEXT -496 88 Left 2 !.options plotwinsize=0 numdgt=7 method=trap
TEXT -424 -648 Left 2 ;1kHz low distortion sinewave oscillator.
TEXT -424 -616 Left 2 ;Approaching 130dB. Edward Rawde 30 Jan 2025.

--- SoupGate-Win32 v1.05
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