LOW INPUT BIAS CURRENT AMPLIFIERS (<100 pA)

Low input bias current op amps are required whenever the difference of currents or voltage is small and it needs to be measured accurately. These op amps are used so that the signal is not loaded down by the input of the op amps. Low input bias current op amps are critical for interfacing sensors in applications from photodiodes, pH meters, or other electrometer-like functions to downstream electronics. Analog Devices has many precision op amps that fit the definition and range of these applications. Select parts from the parametric search table below to download parts datasheets and order samples.

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Precision Low Input Bias Amps

Part#Small Signal BandwidthSlew Rate (typ)Input Noise (nV/rtHz)IbVos (typ)Amps per PackageVsupply span (min)Vsupply span (max)Isy per AmplifierUS Price 1000 to 4999
AD8634 4.9 MHz 5 V/µs 4.2 nV/rtHz -40 nA 250 µV 1 3 30 - $68.00
AD8659 230 kHz 0.08 V/µs 50 nV/rtHz 2 pA 350 µV 4 2.7 18 18 µA $1.35
ADA4610-2 10.6 MHz 25 V/µs 14 nV/rtHz 5 pA 200 µV 2 9 30 1.6 mA $1.43
ADA4001-2 10.3 MHz 25 V/µs 8.8 nV/rtHz 20 pA 500 µV 2 10 36 2 mA $1.09
ADA4638-1 2.5 MHz 1.5 V/µs 66 nV/rtHz 45 pA 500 nV 1 4.5 30 0.85 mA $1.28
ADA4528-1Reference Circuit Available 6.5 MHz 0.5 V/µs 5.3 nV/rtHz 90 pA 0.3 µV 1 2.2 5.5 1.4 mA $0.98
AD8657Reference Circuit Available 200 kHz 0.07 V/µs 50 nV/rtHz 5 pA 350 µV 2 2.7 18 18 µA $0.95
ADA4691-4 3.6 MHz 1.3 V/µs 16 nV/rtHz 0.5 pA 500 µV 4 2.7 5 180 µA $0.90
AD8624 560 kHz 0.48 V/µs 11 nV/rtHz 45 pA 10 µV 4 4 36 215 µA $3.56
ADA4051-1 125 kHz 0.06 V/µs 95 nV/rtHz 20 pA 2 µV 1 1.8 5.5 15 µA $0.93
ADA4691-2 3.6 MHz 1.3 V/µs 16 nV/rtHz 500 fA 500 µV 2 2.7 5 180 µA $0.57
ADA4627-1Reference Circuit Available 19 MHz 40 V/µs 6.1 nV/rtHz 1 pA 70 µV 1 10 30 7 mA $3.47
ADA4505-1 50 kHz 6 mV/µs 65 nV/rtHz 0.5 pA 500 µV 1 1.8 5 9 µA $0.41
ADA4062-4 1.4 MHz 3.3 V/µs 36 nV/rtHz 2 pA 500 µV 4 10 30 165 µA $1.21
ADA4051-2Reference Circuit Available 200 kHz 40 mV/µs 95 nV/rtHz 20 pA 2 µV 2 1.8 5.5 13 µA $1.47
AD8622Reference Circuit Available 560 kHz 0.28 V/µs 11 nV/rtHz 45 pA 10 µV 2 5 30 215 µA $1.96
ADA4692-2 3.6 MHz 1.3 V/µs 16 nV/rtHz 500 fA 500 µV 2 2.7 5 180 µA $0.55
ADA4665-2 1.2 MHz 1 V/µs 32 nV/rtHz 0.1 pA 4 mV 2 5 16 290 µA $0.70
ADA4505-4 50 kHz 6 mV/µs 65 nV/rtHz 500 fA 500 µV 4 1.8 5 7 µA $1.01
ADA4062-2Reference Circuit Available 1.4 MHz 3.3 V/µs 36 nV/rtHz 2 pA 500 µV 2 10 30 165 µA $0.75
ADA4505-2Reference Circuit Available 50 kHz 6 mV/µs 65 nV/rtHz 500 fA 500 µV 2 1.8 5 7 µA $0.57
AD8639Reference Circuit Available 1.5 MHz 2 V/µs 80 nV/rtHz 1 pA 3 µV 2 5 16 1.5 mA $1.86
AD8669 520 kHz 0.26 V/µs 21 nV/rtHz 300 fA 40 µV 4 5 16 285 µA $2.70
AD8647 24 MHz 11 V/µs 6 nV/rtHz 0.3 pA 600 µV 2 2.7 5.5 2 mA $0.71
AD8638Reference Circuit Available 1.5 MHz 2 V/µs 59 nV/rtHz 1 pA 3 µV 1 5 16 1.5 mA $1.08
AD8663Reference Circuit Available 540 kHz 0.3 V/µs 21 nV/rtHz 300 fA 40 µV 1 5 16 285 µA $1.17
AD8646Reference Circuit Available 24 MHz 11 V/µs 6 nV/rtHz 0.3 pA 600 µV 2 2.7 5.5 2 mA $0.61
ADA4000-4 5 MHz 20 V/µs 16 nV/rtHz 5 pA 200 µV 4 8 36 1.65 mA $2.22
ADA4000-2 5 MHz 20 V/µs 16 nV/rtHz 5 pA 200 µV 2 8 36 1.65 mA $1.31
ADA4000-1Reference Circuit Available 5 MHz 20 V/µs 16 nV/rtHz 5 pA 200 µV 1 8 36 1.65 mA $0.73
AD8667 520 kHz 0.26 V/µs 21 nV/rtHz 300 fA 40 µV 2 5 16 285 µA $1.58
AD8539 430 kHz 0.4 V/µs 50 nV/rtHz 15 pA 5 µV 2 2.7 5.5 210 µA $0.72
ADTL084 5 MHz 20 V/µs 16 µV/rtHz 2 pA 1.5 mV 4 8 36 1.2 mA $0.92
ADTL082 5 MHz 20 V/µs 16 nV/rtHz 2 pA 1.5 mV 2 8 36 1.2 mA $0.43
AD8502 7 kHz 0.004 V/µs 190 nV/rtHz 1 pA 500 µV 2 1.8 5.5 1 µA $0.70
AD8684 3.5 MHz 9 V/µs 36 nV/rtHz 6 pA 350 µV 4 9 36 250 µA $2.44
AD8682 3.5 MHz 9 V/µs 36 nV/rtHz 6 pA 350 µV 2 9 32 250 µA $1.66
AD8665 4 MHz 3.5 V/µs 10 nV/rtHz 0.2 pA 50 µV 1 5 16 1.55 mA $0.83
AD8666 4 MHz 3.5 V/µs 10 nV/rtHz 0.2 pA 600 µV 2 5 16 1.55 mA $0.93
AD8664 4 MHz 3.5 V/µs 12 nV/rtHz 0.3 pA 50 µV 4 5 16 1.55 mA $2.23
AD8668 4 MHz 3.5 V/µs 10 nV/rtHz 0.2 pA 600 µV 4 5 16 1.55 mA $1.75
AD8662Reference Circuit Available 4 MHz 3.5 V/µs 12 nV/rtHz 300 fA 30 µV 2 5 16 1.55 mA $1.37
AD8677 600 kHz 0.2 V/µs - 200 pA 45 µV 1 10 36 - $0.76
AD8648 22 MHz 12 V/µs 6 nV/rtHz 0.2 pA 600 µV 4 2.7 5.5 2 mA $0.88
AD8613 400 kHz 0.1 V/µs 25 nV/rtHz 0.2 pA 400 µV 1 1.8 5 38 µA $0.46
AD8538 430 kHz 0.4 V/µs 50 nV/rtHz 15 pA 5 µV 1 2.7 5.5 180 µA $0.50
AD8675Reference Circuit Available 10 MHz 2.5 V/µs 2.8 nV/rtHz 0.5 nA 10 µV 1 10 36 2.9 mA $1.18
AD8661 4 MHz 3.5 V/µs 12 nV/rtHz 0.3 pA 30 µV 1 5 16 1.4 mA $1.08
AD8619 400 kHz 0.1 V/µs 22 nV/rtHz 0.2 pA 400 µV 4 1.8 5 38 µA $1.11
AD8617Reference Circuit Available 400 kHz 0.1 V/µs 22 nV/rtHz 0.2 pA 400 µV 2 1.8 5 38 µA $0.71
AD8656 28 MHz 11 V/µs 4 nV/rtHz 10 pA 50 µV 2 2.7 5.5 4.5 mA $1.11
AD8694Reference Circuit Available 10 MHz 5 V/µs 8 nV/rtHz 0.2 pA 400 µV 4 2.7 6 1.2 mA $0.80
AD8655Reference Circuit Available 28 MHz 11 V/µs 4 nV/rtHz 10 pA 50 µV 1 2.7 5.5 4.5 mA $0.71
AD8643 3.5 MHz 3 V/µs 27.5 nV/rtHz 0.25 pA 50 µV 4 5 26 290 µA $3.85
AD8642 3.5 MHz 3 V/µs 27.5 nV/rtHz 0.25 pA 50 µV 2 5 26 290 µA $2.35
AD8691 10 MHz 5 V/µs 6.5 nV/rtHz 0.2 pA 400 µV 1 2.7 6 1.05 mA $0.44
AD8630 2.5 MHz 1 V/µs 22 nV/rtHz 100 pA 1 µV 4 2.7 6 1.1 mA $2.73
AD8615Reference Circuit Available 23 MHz 12 V/µs 7 nV/rtHz 0.2 pA 80 µV 1 2.7 6 1.7 mA $0.76
AD8692Reference Circuit Available 10 MHz 5 V/µs 8 nV/rtHz 0.2 pA 400 µV 2 2.7 6 1.05 mA $0.60
AD8652 50 MHz 41 V/µs 5 nV/rtHz 1 pA 100 µV 2 2.7 5.5 9 mA $1.99
AD8641Reference Circuit Available 3.5 MHz 3 V/µs 27.5 nV/rtHz 0.25 pA 50 µV 1 5 26 290 µA $1.47
AD8629Reference Circuit Available 2.5 MHz 1 V/µs 22 nV/rtHz 30 pA 1 µV 2 2.7 6 1.1 mA $1.47
AD8698 1 MHz 0.4 V/µs 8 nV/rtHz 700 pA 20 µV 2 5 30 1.6 mA -
AD8618Reference Circuit Available 24 MHz 12 V/µs 6 nV/rtHz 0.2 pA 23 µV 4 2.7 6 2 mA $2.29
AD8616 24 MHz 12 V/µs 6 nV/rtHz 0.2 pA 80 µV 2 2.7 6 2 mA $1.29
AD8651 50 MHz 41 V/µs 4.5 nV/rtHz 1 pA 100 µV 1 2.7 5.5 9 mA $1.13
AD8626 5 MHz 5 V/µs 16 nV/rtHz 0.25 pA 50 µV 2 5 26 850 µA $2.63
AD8625 5 MHz 5 V/µs 16 nV/rtHz 0.25 pA 50 µV 4 5 26 850 µA $4.09
AD8603Reference Circuit Available 400 kHz 0.1 V/µs - 0.2 pA 12 µV 1 1.8 6 - $0.68
AD8627Reference Circuit Available 5 MHz 5 V/µs 16 nV/rtHz 0.25 pA 50 µV 1 5 26 850 µA $1.60
OP4177 1.3 MHz 700 mV/µs 7.9 nV/rtHz 500 pA 15 µV 4 5 36 500 µA $3.60
AD8628Reference Circuit Available 2.5 MHz 1 V/µs 22 nV/rtHz 30 pA 1 µV 1 2.7 6 1.1 mA $0.96
AD8620Reference Circuit Available 25 MHz 50 V/µs 6 nV/rtHz 2 pA 85 µV 2 10 27 3.5 mA $7.50
OP2177Reference Circuit Available 1.3 MHz 700 mV/µs 7.9 nV/rtHz 500 pA 15 µV 2 5 36 500 µA $1.53
AD8610Reference Circuit Available 25 MHz 60 V/µs 6 nV/rtHz 2 pA 75 µV 1 10 27 3.5 mA $3.75
OP1177Reference Circuit Available 1.3 MHz 700 mV/µs - 500 pA 15 µV 1 5 36 - $0.81
AD8601Reference Circuit Available 8.4 MHz 6 V/µs 18 nV/rtHz 200 fA 500 µV 1 2.7 6 1.2 mA $0.36
AD8554 1.5 MHz 0.4 V/µs 42 nV/rtHz 10 pA 1 µV 4 2.7 5.5 975 µA $3.43
AD825 46 MHz 140 V/µs 12 nV/rtHz 10 pA 1 mV 1 10 36 7.2 mA $1.84
AD8531 3 MHz 5 V/µs 30 nV/rtHz 5 pA 25 mV 1 2.7 6 1.25 mA $0.27
AD8534 3 MHz 5 V/µs 30 nV/rtHz 5 pA 25 mV 4 3 6 1.25 mA $0.60
AD8532 3 MHz 5 V/µs 30 nV/rtHz 5 pA 25 mV 2 3 6 1.25 mA $0.43
AD823 16 MHz 25 V/µs 16 nV/rtHz 5 pA 700 µV 2 3 36 4.2 mA $2.92
AD822Reference Circuit Available 1.9 MHz 3 V/µs - 2 pA 100 µV 2 5 30 - $2.84
AD820 1.9 MHz 3 V/µs 13 nV/rtHz 2 pA 100 µV 1 5 36 900 µA $1.82
AD795 1.6 MHz 1 V/µs - 1 pA 100 µV 1 8 36 - $3.38
OP482 4 MHz 9 V/µs 36 nV/rtHz 3 pA 200 µV 4 9 36 250 µA $2.16
OP282 4 MHz 9 V/µs 36 nV/rtHz 3 pA 200 µV 2 9 36 250 µA $1.42
OP497 500 kHz 150 mV/µs 25 nV/rtHz 60 pA 80 µV 4 4 40 625 µA $4.49
AD706 800 kHz 150 mV/µs 15 nV/rtHz 50 pA 30 µV 2 4 36 600 µA $2.48
OP297 500 kHz 150 mV/µs 17 nV/rtHz 50 pA 80 µV 2 4 40 625 µA $2.61
AD746 13 MHz 75 V/µs 16 nV/rtHz 110 pA 300 µV 2 9.6 36 4 mA $4.26
AD843 34 MHz 250 V/µs 19 nV/rtHz 50 pA 500 µV 1 9 36 12 mA $4.71
AD713 4 MHz 20 V/µs - 40 pA 300 µV 4 9 36 - $4.71
AD845Reference Circuit Available 16 MHz 100 V/µs 18 nV/rtHz 750 pA 250 µV 1 9.5 36 10 mA $3.52
OP97 900 kHz 200 mV/µs 14 nV/rtHz 30 pA 30 µV 1 4 40 600 µA $1.28
AD744 13 MHz 75 V/µs 16 nV/rtHz 30 pA 250 µV 1 9 36 3.5 mA $2.49
AD549 1 MHz 3 V/µs 35 nV/rtHz 150 fA 500 µV 1 10 36 700 µA $15.90
OP42 10 MHz 50 V/µs 12 nV/rtHz 130 pA 400 µV 1 16 40 6.5 mA $2.21
AD711 4 MHz 20 V/µs 16 nV/rtHz 15 pA 300 µV 1 9 36 2.8 mA $1.22
OP400 500 kHz 150 mV/µs 11 nV/rtHz 750 pA 60 µV 4 6 40 725 µA $5.21
OP07 600 kHz 300 mV/µs 9.6 nV/rtHz 1 nA 30 µV 1 6 44 4 mA $0.66
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