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 RateInput Noise (nV/rtHz)IbInput Offset Voltage# OpAmps per PkgV Span MinV Span MaxIsy per AmplifierUS Price 1000-4999
AD86344.9MHz5V/µs4.2nV/rtHz-0.00000004A250µV13V30V- $68
AD8659230KHz80mV/µs50nV/rtHz2pA350µV42.7V18V18µA $1.35
AD8657Reference Circuit Available200KHz70mV/µs50nV/rtHz5pA350µV22.7V18V18µA $0.95
AD8624560KHz480mV/µs11nV/rtHz45pA10µV44V36V215µA $3.56
AD850595Hz13mV/µs45nV/rtHz1pA500µV11.8V5V25.5µA $0.47
AD8622Reference Circuit Available560KHz280mV/µs11nV/rtHz45pA10µV25V30V215µA $1.96
AD850895KHz13mV/µs45nV/rtHz1pA500µV41.8V5V15µA $1.02
AD8639Reference Circuit Available1.5MHz2V/µs80nV/rtHz1pA3µV25V16V1.5mA $1.86
AD8506150KHz13mV/µs45nV/rtHz1pA2.5mV21.8V5.5V20µA $0.57
AD8638Reference Circuit Available1.5MHz2V/µs59nV/rtHz1pA3µV15V16V1.5mA $1.08
AD864724MHz11V/µs6nV/rtHz300fA600µV22.7V5.5V2mA $0.71
AD8669520KHz260mV/µs21nV/rtHz300fA30µV45V16V285µA $2.7
AD8646Reference Circuit Available24MHz11V/µs6nV/rtHz300fA600µV22.7V5.5V2mA $0.61
AD8663Reference Circuit Available540KHz300mV/µs21nV/rtHz300fA30µV15V16V285µA $1.17
AD8539430KHz400mV/µs50nV/rtHz15pA5µV22.7V5.5V210µA $0.72
AD8667520KHz260mV/µs21nV/rtHz300fA30µV25V16V285µA $1.58
AD85027KHz4mV/µs190nV/rtHz1pA500µV21.8V5.5V1µA $0.7
AD85047KHz4mV/µs-1pA500µV41.8V5.5V- $1
AD86654MHz3.5V/µs10nV/rtHz200fA600µV15V16V1.55mA $0.83
AD86823.5MHz9V/µs36nV/rtHz6pA350µV29V32V250µA $1.66
AD86843.5MHz9V/µs36nV/rtHz6pA350µV49V36V250µA $2.44
AD86644MHz3.5V/µs12nV/rtHz300fA50µV45V16V1.55mA $2.23
AD86664MHz3.5V/µs10nV/rtHz200fA600µV25V16V1.55mA $0.93
AD85007KHz4mV/µs-1pA235µV11.8V5.5V- $0.71
AD8662Reference Circuit Available4MHz3.5V/µs12nV/rtHz300fA1mV25V16V1.55mA $1.37
AD86684MHz3.5V/µs10nV/rtHz200fA600µV45V16V1.55mA $1.75
AD8538430KHz400mV/µs50nV/rtHz15pA5µV12.7V5.5V180µA $0.5
AD8613400KHz100mV/µs25nV/rtHz200fA400µV11.8V5V38µA $0.46
AD864822MHz12V/µs6nV/rtHz200fA700µV42.7V5.5V2mA $0.88
AD8677600KHz200mV/µs-200pA45µV110V36V- $0.76
AD8617Reference Circuit Available400KHz100mV/µs22nV/rtHz200fA400µV21.8V5V38µA $0.71
AD8619400KHz100mV/µs22nV/rtHz200fA400µV41.8V5V38µA $1.11
AD86614MHz3.5V/µs12nV/rtHz300fA30µV15V16V1.4mA $1.08
AD8675Reference Circuit Available10MHz2.5V/µs2.8nV/rtHz500pA10µV110V36V2.9mA $1.18
AD865628MHz11V/µs4nV/rtHz10pA50µV22.7V5.5V4.5mA $1.11
AD86423.5MHz3V/µs27.5nV/rtHz250fA50µV25V26V290µA $2.35
AD86433.5MHz3V/µs27.5nV/rtHz250fA50µV45V26V290µA $3.85
AD8655Reference Circuit Available28MHz11V/µs4nV/rtHz10pA50µV12.7V5.5V4.5mA $0.71
AD8615Reference Circuit Available23MHz12V/µs7nV/rtHz200fA80µV12.7V6V1.7mA $0.76
AD86302.5MHz1V/µs22nV/rtHz100pA1µV42.7V6V1.1mA $2.73
AD869110MHz5V/µs6.5nV/rtHz200fA400µV12.7V6V1.05mA $0.44
AD8629Reference Circuit Available2.5MHz1V/µs22nV/rtHz30pA1µV22.7V6V1.1mA $1.47
AD8641Reference Circuit Available3.5MHz3V/µs27.5nV/rtHz250fA50µV15V26V290µA $1.47
AD865250MHz41V/µs5nV/rtHz1pA100µV22.7V5.5V9mA $1.99
AD8618Reference Circuit Available24MHz12V/µs6nV/rtHz200fA23µV42.7V6V2mA $2.29
AD861624MHz12V/µs6nV/rtHz200fA23µV22.7V6V2mA $1.29
AD85138MHz20V/µs-21pA80µV49V36V- $3.71
AD8607400KHz100mV/µs-200fA12µV21.8V5V- $1.02
AD8609Reference Circuit Available400KHz100mV/µs-200fA12µV41.8V5V- $1.85
AD86255MHz5V/µs16nV/rtHz250fA50µV45V26V850µA $4.09
AD86265MHz5V/µs16nV/rtHz250fA50µV25V26V850µA $2.63
AD865150MHz41V/µs4.5nV/rtHz1pA100µV12.7V5.5V9mA $1.13
AD8603Reference Circuit Available400KHz100mV/µs-200fA12µV11.8V6V- $0.68
AD8627Reference Circuit Available5MHz5V/µs16nV/rtHz250fA50µV15V26V850µA $1.6
AD8608Reference Circuit Available10MHz5V/µs-200fA20µV42.7V6V- $1.58
AD8510Reference Circuit Available8MHz20V/µs-21pA80µV19V36V- $0.95
AD8515Reference Circuit Available5MHz2.7V/µs-2pA1mV11.8V6V- $0.28
AD8605Reference Circuit Available10MHz5V/µs-200fA20µV12.7V6V- $0.68
AD8606Reference Circuit Available10MHz5V/µs-200fA20µV22.7V6V- $1.19
AD8620Reference Circuit Available25MHz50V/µs6nV/rtHz2pA85µV210V27V3.5mA $7.5
AD8628Reference Circuit Available2.5MHz1V/µs22nV/rtHz30pA1µV12.7V6V1.1mA $0.96
AD8512Reference Circuit Available8MHz20V/µs-21pA80µV29V36V- $1.49
AD8610Reference Circuit Available25MHz60V/µs6nV/rtHz2pA75µV110V27V3.5mA $3.75
AD8601Reference Circuit Available8.4MHz6V/µs18nV/rtHz200fA500µV12.7V6V1.2mA $0.36
AD86048.4MHz6V/µs-200fA500µV42.7V6V- $0.9
AD86028.4MHz6V/µs-200fA500µV22.7V6V- $0.44
AD85511.5MHz400mV/µs-10pA1µV12.7V6V- $1.22
AD85521.5MHz400mV/µs-10pA1µV22.7V5.5V- $1.94
AD85541.5MHz400mV/µs42nV/rtHz10pA1µV42.7V5.5V975µA $3.43
AD85711.5MHz400mV/µs-10pA1µV12.7V6V- $1.11
AD85721.5MHz400mV/µs-10pA1µV22.7V6V- $1.78
AD85741.5MHz400mV/µs-10pA1µV42.7V6V- $3.4
AD85915MHz3.5V/µs30nV/rtHz5pA25mV12.5V6V1.25mA $0.29
AD8541Reference Circuit Available1MHz920mV/µs-4pA1mV12.7V5.5V- $0.27
AD85421MHz920mV/µs-4pA1mV22.7V5.5V- $0.38
AD85441MHz920mV/µs-4pA1mV42.7V5.5V- $0.54
AD85922.2MHz3.5V/µs30nV/rtHz5pA25mV22.5V6V1.25mA $0.39
AD85942.2MHz3.5V/µs30nV/rtHz5pA25mV42.5V6V1.25mA **
AD82546MHz140V/µs12nV/rtHz10pA1mV110V36V7.2mA $1.84
AD85313MHz5V/µs30nV/rtHz5pA25mV12.7V6V1.25mA $0.27
AD85343MHz5V/µs30nV/rtHz5pA25mV43V6V1.25mA $0.6
AD85323MHz5V/µs30nV/rtHz5pA25mV23V6V1.25mA $0.43
AD82316MHz25V/µs16nV/rtHz5pA700µV23V36V4.2mA $2.92
AD8242MHz2V/µs-4pA500µV43V36V- $4.87
AD822Reference Circuit Available1.9MHz3V/µs-2pA100µV25V30V- $2.84
AD8201.9MHz3V/µs13nV/rtHz2pA100µV15V36V900µA $1.82
AD7951.6MHz1V/µs-1pA100µV18V36V- $3.38
AD74520MHz12.5V/µs2.9nV/rtHz150pA250µV19.6V36V10mA $5.43
AD704800KHz150mV/µs15nV/rtHz100pA30µV44V36V600µA $4.54
AD706800KHz150mV/µs15nV/rtHz50pA30µV24V36V600µA $2.48
AD7434.5MHz2.8V/µs2.9nV/rtHz150pA250µV19.6V36V10mA $5.7
AD74613MHz75V/µs16nV/rtHz110pA300µV29.6V36V4mA $4.26
AD84334MHz250V/µs19nV/rtHz50pA1mV19V36V12mA $4.71
AD708900KHz300mV/µs9.6nV/rtHz1nA30µV26V36V2.75mA $3.15
AD7134MHz20V/µs-40pA300µV49V36V- $4.71
AD845Reference Circuit Available16MHz100V/µs18nV/rtHz750pA700µV19.5V36V10mA $3.52
AD74413MHz75V/µs16nV/rtHz30pA1mV19V36V3.5mA $2.49
AD5491MHz3V/µs35nV/rtHz150fA500µV110V36V700µA $15.9
AD7114MHz20V/µs16nV/rtHz15pA300µV19V36V2.8mA $1.22
AD7124MHz20V/µs-25pA300µV29V36V- $1.69
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