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#Amps per Package-3dB Bandwidth at min gain (typ)GBP (typ)Slew Rate (typ)Vsupply Span (min)Vsupply Span (max)Vos (typ)Iq/Amp (typ)Ib (typ)PSRR (typ)CMRR (typ)Rail-Rail InRail-Rail OutIos (typ)
ADA4666-2 2 2.1 MHz 4 MHz 2 V/µs 3 18 500 µV 630 µA 500 fA 145 80 Yes Yes 11 pA
ADA4661-2 2 2.1 MHz 4 MHz 2 V/µs 3 18 30 µV 630 µA 0.5 pA 145 90 Yes Yes 11 pA
ADA4500-2Reference Circuit Available 2 10 MHz 10 MHz 8.7 V/µs 2.7 5.5 120 µV 1.55 mA 700 fA - 95 Yes Yes -
AD8659 4 230 kHz 230 kHz 0.08 V/µs 2.7 18 350 µV 18 µA 20 pA 115 94 Yes Yes 30 pA
ADA4610-2 2 10.6 MHz 16.3 MHz 25 V/µs 9 30 200 µV 1.6 mA 5 pA 125 100 No Yes 2 pA
ADA4001-2 2 10.3 MHz 16.7 MHz 25 V/µs 10 36 500 µV 2 mA 20 pA 110 96 No Yes 20 pA
ADA4638-1 1 2.5 MHz 1.5 MHz 1.5 V/µs 4.5 30 500 nV 0.85 mA 45 pA 143 130 - Yes 25 pA
AD8657Reference Circuit Available 2 200 kHz 230 kHz 0.07 V/µs 2.7 18 350 µV 18 µA 20 pA 125 94 Yes Yes 40 pA
ADA4691-4 4 3.6 MHz 3.6 MHz 1.3 V/µs 2.7 5 500 µV 180 µA 500 fA 90 75 No Yes 1 pA
AD8624 4 560 kHz 560 kHz 0.48 V/µs 4 36 10 µV 215 µA 45 pA 145 125 No Yes 35 pA
ADA4051-1 1 125 kHz 125 kHz 0.06 V/µs 1.8 5.5 2 µV 15 µA 20 pA 135 110 Yes Yes 40 pA
ADA4691-2 2 3.6 MHz 3.6 MHz 1.3 V/µs 2.7 5 500 µV 180 µA 500 fA 90 75 No Yes 1 pA
ADA4627-1Reference Circuit Available 1 19 MHz 19 MHz 40 V/µs 10 30 70 µV 7 mA 1 pA - 106 No No 0.5 pA
ADA4505-1 1 50 kHz 50 kHz 6 mV/µs 1.8 5 500 µV 9 µA 500 fA 110 90 Yes Yes 0.05 pA
ADA4062-4 4 1.4 MHz 1.4 MHz 3.3 V/µs 10 30 500 µV 165 µA 2 pA 90 80 No No 0.5 pA
ADA4051-2Reference Circuit Available 2 200 kHz 125 kHz 40 mV/µs 1.8 5.5 2 µV 13 µA 20 pA 135 110 Yes Yes 40 pA
AD8622Reference Circuit Available 2 560 kHz 540 kHz 0.28 V/µs 5 30 10 µV 215 µA 45 pA 145 125 No Yes 35 pA
ADA4665-2 2 1.2 MHz 1.2 MHz 1 V/µs 5 16 4 mV 290 µA 1 pA 95 55 Yes Yes 0.1 pA
ADA4505-4 4 50 kHz 50 kHz 6 mV/µs 1.8 5 500 µV 7 µA 500 fA 110 90 Yes Yes 50 fA
ADA4062-2Reference Circuit Available 2 1.4 MHz 1.4 MHz 3.3 V/µs 10 30 500 µV 165 µA 2 pA 90 80 No No 500 fA
ADA4505-2Reference Circuit Available 2 50 kHz 50 kHz 6 mV/µs 1.8 5 500 µV 7 µA 500 fA 110 90 Yes Yes 50 fA
AD8639Reference Circuit Available 2 1.5 MHz 1.35 MHz 2 V/µs 5 16 3 µV 1.5 mA 1 pA 143 127 No Yes 20 pA
AD8669 4 520 kHz 540 kHz 0.26 V/µs 5 16 40 µV 285 µA 300 fA 105 87 No Yes 200 fA
AD8647 2 24 MHz 24 MHz 11 V/µs 2.7 5.5 600 µV 2 mA 300 fA 80 67 Yes Yes 0.1 pA
AD8638Reference Circuit Available 1 1.5 MHz 1.35 MHz 2 V/µs 5 16 3 µV 1.5 mA 1 pA - 127 No Yes 20 pA
AD8663Reference Circuit Available 1 540 kHz 540 kHz 0.3 V/µs 5 16 40 µV 285 µA 300 fA 105 87 No Yes 200 fA
AD8646Reference Circuit Available 2 24 MHz 24 MHz 11 V/µs 2.7 5.5 600 µV 2 mA 300 fA 80 67 Yes Yes 0.1 pA
ADA4000-4 4 5 MHz 5 MHz 20 V/µs 8 36 200 µV 1.65 mA 5 pA 92 80 No No 2 pA
ADA4000-2 2 5 MHz 5 MHz 20 V/µs 8 36 200 µV 1.65 mA 5 pA 92 80 No No 2 pA
ADA4000-1Reference Circuit Available 1 5 MHz 5 MHz 20 V/µs 8 36 200 µV 1.65 mA 5 pA 92 80 No No 2 pA
AD8667 2 520 kHz 540 kHz 0.26 V/µs 5 16 40 µV 285 µA 300 fA 105 87 No Yes 200 fA
AD8539 2 430 kHz 430 kHz 0.4 V/µs 2.7 5.5 5 µV 210 µA 15 pA 125 115 Yes Yes 20 pA
ADTL084 4 5 MHz 5 MHz 20 V/µs 8 36 1.5 mV 1.2 mA 2 pA 86 80 No No 2 pA
ADTL082 2 5 MHz 5 MHz 20 V/µs 8 36 1.5 mV 1.2 mA 2 pA 86 80 No No 2 pA
AD8504 4 7 kHz 7 kHz 0.004 V/µs 1.8 5.5 500 µV 1 µA 1 pA 105 67 Yes Yes 0.5 pA
AD8502 2 7 kHz 7 kHz 0.004 V/µs 1.8 5.5 500 µV 1 µA 1 pA 105 67 Yes Yes 0.5 pA
AD8684 4 3.5 MHz 3.5 MHz 9 V/µs 9 36 350 µV 250 µA 6 pA 114 70 No No 20 pA
AD8682 2 3.5 MHz 3.5 MHz 9 V/µs 9 32 350 µV 250 µA 6 pA 114 70 No No 20 pA
AD8665 1 4 MHz 4 MHz 3.5 V/µs 5 16 50 µV 1.55 mA 300 fA 115 90 No Yes 0.1 pA
AD8666 2 4 MHz 4 MHz 3.5 V/µs 5 16 600 µV 1.55 mA 200 fA 115 90 No Yes 0.1 pA
AD8664 4 4 MHz 4 MHz 3.5 V/µs 5 16 50 µV 1.55 mA 300 fA 110 90 No Yes 0.2 pA
AD8668 4 4 MHz 4 MHz 3.5 V/µs 5 16 600 µV 1.55 mA 200 fA 115 90 No Yes 0.1 pA
AD8662Reference Circuit Available 2 4 MHz 4 MHz 3.5 V/µs 5 16 30 µV 1.55 mA 300 fA 110 90 No Yes 200 fA
AD8500Reference Circuit Available 1 7 kHz 7 kHz 0.004 V/µs 1.8 5.5 235 µV 0.75 µA 1 pA 110 75 Yes Yes 0.5 pA
AD8648 4 22 MHz 24 MHz 12 V/µs 2.7 5.5 600 µV 2 mA 300 fA 80 67 Yes Yes 0.1 pA
AD8613 1 400 kHz 400 kHz 0.1 V/µs 1.8 5 400 µV 38 µA 200 fA 94 95 Yes Yes 0.1 pA
AD8538 1 430 kHz 430 kHz 0.4 V/µs 2.7 5.5 5 µV 180 µA 15 pA 125 115 No Yes 20 pA
AD8661 1 4 MHz 4 MHz 3.5 V/µs 5 16 30 µV 1.4 mA 300 fA 110 90 No Yes 0.2 pA
AD8619 4 400 kHz 400 kHz 0.1 V/µs 1.8 5 400 µV 38 µA 200 fA 94 68 Yes Yes 0.1 pA
AD8617Reference Circuit Available 2 400 kHz 400 kHz 0.1 V/µs 1.8 5 400 µV 38 µA 200 fA 94 68 Yes Yes 0.1 pA
AD8656 2 28 MHz 28 MHz 11 V/µs 2.7 5.5 50 µV 4.5 mA 10 pA 105 85 Yes Yes 10 pA
AD8694Reference Circuit Available 4 10 MHz 10 MHz 5 V/µs 2.7 6 400 µV 0.95 mA 200 fA 95 70 No Yes 0.1 pA
AD8655Reference Circuit Available 1 28 MHz 28 MHz 11 V/µs 2.7 5.5 50 µV 4.5 mA 10 pA 105 85 Yes Yes 10 pA
AD8643 4 3.5 MHz 3.5 MHz 3 V/µs 5 26 50 µV 290 µA 250 fA 107 90 No Yes 0.5 pA
AD8642 2 3.5 MHz 3.5 MHz 3 V/µs 5 26 50 µV 290 µA 250 fA 107 90 No Yes 0.5 pA
AD8691 1 10 MHz 10 MHz 5 V/µs 2.7 6 400 µV 1.05 mA 200 fA 95 70 No Yes 0.1 pA
AD8630 4 2.5 MHz 2.5 MHz 1 V/µs 2.7 6 1 µV 1.1 mA 30 pA 130 120 Yes Yes 50 pA
AD8615Reference Circuit Available 1 23 MHz 24 MHz 12 V/µs 2.7 6 80 µV 1.7 mA 200 fA 90 80 Yes Yes 0.1 pA
AD8692Reference Circuit Available 2 10 MHz 10 MHz 5 V/µs 2.7 6 400 µV 1.05 mA 200 fA 95 70 No Yes 0.1 pA
AD8652 2 50 MHz 50 MHz 41 V/µs 2.7 5.5 100 µV 9 mA 1 pA 94 84 Yes Yes 1 pA
AD8641Reference Circuit Available 1 3.5 MHz 3.5 MHz 3 V/µs 5 26 50 µV 290 µA 250 fA 107 90 No Yes 0.5 pA
AD8629Reference Circuit Available 2 2.5 MHz 2.5 MHz 1 V/µs 2.7 6 1 µV 1.1 mA 30 pA 130 120 Yes Yes 50 pA
AD8618Reference Circuit Available 4 24 MHz 24 MHz 12 V/µs 2.7 6 23 µV 2 mA 200 fA 90 80 Yes Yes 0.1 pA
AD8616 2 24 MHz 24 MHz 12 V/µs 2.7 6 80 µV 2 mA 200 fA 90 80 Yes Yes 0.1 pA
AD8651 1 50 MHz 50 MHz 41 V/µs 2.7 5.5 100 µV 9 mA 1 pA 94 80 Yes Yes 1 pA
AD8626 2 5 MHz 5 MHz 5 V/µs 5 26 50 µV 850 µA 250 fA 104 76 No Yes 0.5 pA
AD8625 4 5 MHz 5 MHz 5 V/µs 5 26 50 µV 850 µA 250 fA 104 76 No Yes 0.5 pA
AD8609Reference Circuit Available 4 400 kHz 400 kHz 0.1 V/µs 1.8 5 12 µV 50 µA 200 fA 100 85 Yes Yes 0.1 pA
AD8607 2 400 kHz 400 kHz 0.1 V/µs 1.8 5 12 µV 50 µA 200 fA 100 85 Yes Yes 0.1 pA
AD8513 4 8 MHz 8 MHz 20 V/µs 9 36 80 µV 2.5 mA 21 pA 130 86 No No 5 pA
AD8603Reference Circuit Available 1 400 kHz 400 kHz 0.1 V/µs 1.8 6 12 µV 50 µA 200 fA 100 85 Yes Yes 0.1 pA
AD8627Reference Circuit Available 1 5 MHz 5 MHz 5 V/µs 5 26 50 µV 850 µA 250 fA 104 76 No Yes 0.5 pA
AD8608Reference Circuit Available 4 10 MHz 10 MHz 5 V/µs 2.7 6 20 µV 1.2 mA 200 fA 95 85 Yes Yes 100 fA
AD8605Reference Circuit Available 1 10 MHz 10 MHz 5 V/µs 2.7 6 20 µV 1.2 mA 200 fA 95 85 Yes Yes 100 fA
AD8515Reference Circuit Available 1 5 MHz 5 MHz 2.7 V/µs 1.8 6 1 mV 500 µA 2 pA 85 60 Yes Yes 1 pA
AD8510Reference Circuit Available 1 8 MHz 8 MHz 20 V/µs 9 36 80 µV 2.5 mA 21 pA 130 86 No No 5 pA
AD8628Reference Circuit Available 1 2.5 MHz 2.5 MHz 1 V/µs 2.7 6 1 µV 1.1 mA 30 pA 130 120 Yes Yes 50 pA
AD8620Reference Circuit Available 2 25 MHz 25 MHz 50 V/µs 10 27 85 µV 3.5 mA 2 pA 110 90 No No 1 pA
AD8606Reference Circuit Available 2 10 MHz 10 MHz 5 V/µs 2.7 6 20 µV 1.2 mA 200 fA 95 85 Yes Yes 100 fA
AD8512Reference Circuit Available 2 8 MHz 8 MHz 20 V/µs 9 36 80 µV 2.5 mA 21 pA 130 86 No No 5 pA
AD8610Reference Circuit Available 1 25 MHz 25 MHz 60 V/µs 10 27 75 µV 3.5 mA 2 pA 110 90 No No 1 pA
AD8604 4 8.4 MHz 8.4 MHz 6 V/µs 2.7 6 500 µV 1.2 mA 200 fA 75 74 Yes Yes 100 fA
AD8601Reference Circuit Available 1 8.4 MHz 8.4 MHz 6 V/µs 2.7 6 500 µV 1.2 mA 200 fA 75 74 Yes Yes 100 fA
AD8602 2 8.4 MHz 8.4 MHz 6 V/µs 2.7 6 500 µV 1.2 mA 200 fA 75 74 Yes Yes 100 fA
AD8574 4 1.5 MHz 1.5 MHz 400 mV/µs 2.7 6 1 µV 975 µA 10 pA 130 120 Yes Yes 1 pA
AD8572 2 1.5 MHz 1.5 MHz 400 mV/µs 2.7 6 1 µV 975 µA 10 pA 130 120 Yes Yes 1 pA
AD8571 1 1.5 MHz 1.5 MHz 400 mV/µs 2.7 6 1 µV 975 µA 10 pA 130 120 Yes Yes 1 pA
AD8554 4 1.5 MHz 1.5 MHz 0.4 V/µs 2.7 5.5 1 µV 975 µA 10 pA 115 120 Yes Yes 1 pA
AD8552 2 1.5 MHz 1.5 MHz 0.4 V/µs 2.7 5.5 1 µV 975 µA 10 pA 115 120 Yes Yes 1 pA
AD8551 1 1.5 MHz 1.5 MHz 0.4 V/µs 2.7 6 1 µV 975 µA 10 pA 115 120 Yes Yes 1 pA
AD8544 4 1 MHz 1 MHz 0.92 V/µs 2.7 5.5 1 mV 65 µA 4 pA 76 40 Yes Yes 0.1 pA
AD8542 2 1 MHz 1 MHz 0.92 V/µs 2.7 5.5 1 mV 65 µA 4 pA 76 40 Yes Yes 0.1 pA
AD8541Reference Circuit Available 1 1 MHz 1 MHz 0.92 V/µs 2.7 5.5 1 mV 65 µA 4 pA 76 40 Yes Yes 0.1 pA
AD825 1 46 MHz 30 MHz 140 V/µs 10 36 1 mV 7.2 mA 15 pA 88 80 No No 15 pA
AD8531 1 3 MHz 3 MHz 5 V/µs 2.7 6 25 mV 1.25 mA 5 pA 55 38 Yes Yes 1 pA
AD8534 4 3 MHz 3 MHz 5 V/µs 3 6 25 mV 1.25 mA 5 pA 55 38 Yes Yes 1 pA
AD8532 2 3 MHz 3 MHz 5 V/µs 3 6 25 mV 1.25 mA 5 pA 55 38 Yes Yes 1 pA
AD823 2 16 MHz 10 MHz 25 V/µs 3 36 700 µV 7 mA 5 pA 80 82 No Yes 2 pA
AD824 4 2 MHz 2 MHz 2 V/µs 3 36 500 µV 625 µA 4 pA 80 70 No Yes 3 pA
AD822Reference Circuit Available 2 1.9 MHz 1.9 MHz 3 V/µs 5 30 100 µV 900 µA 2 pA 80 74 No Yes 2 pA
AD820 1 1.9 MHz 1.9 MHz 3 V/µs 5 36 100 µV 900 µA 2 pA 80 74 No Yes 2 pA
AD795 1 1.6 MHz 1.6 MHz 1 V/µs 8 36 100 µV 1.5 mA 1 pA 110 90 No No 100 fA
OP482 4 4 MHz 4 MHz 9 V/µs 9 36 200 µV 250 µA 3 pA 92 70 No No 1 pA
OP282 2 4 MHz 4 MHz 9 V/µs 9 36 200 µV 250 µA 3 pA 92 70 No No 1 pA
OP497 4 500 kHz 500 kHz 150 mV/µs 4 40 80 µV 625 µA 60 pA 135 114 No No 50 pA
AD706 2 800 kHz 0.8 MHz 150 mV/µs 4 36 30 µV 600 µA 50 pA 132 110 No No 30 pA
OP297 2 500 kHz 500 kHz 150 mV/µs 4 40 80 µV 625 µA 50 pA 125 120 No No 50 pA
AD843 1 34 MHz 30 MHz 250 V/µs 9 36 500 µV 12 mA 40 pA 76 72 - - 30 pA
AD713 4 4 MHz 4 MHz 20 V/µs 9 36 300 µV 3 mA 40 pA 95 78 No No 10 pA
OP97 1 900 kHz 900 kHz 200 mV/µs 4 40 30 µV 600 µA 30 pA 132 114 No No 30 pA
AD744 1 13 MHz 13 MHz 75 V/µs 9 36 250 µV 3.5 mA 30 pA 95 88 - - 400 pA
AD549 1 1 MHz 1 MHz 3 V/µs 10 36 500 µV 700 µA 40 fA 90 90 No No 50 fA
AD712 2 4 MHz 4 MHz 20 V/µs 9 36 300 µV 2.8 mA 25 pA 95 76 No No 10 pA
AD711 1 4 MHz 4 MHz 20 V/µs 9 36 300 µV 2.8 mA 15 pA 110 88 No No 10 pA
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