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 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 related functions to downstream electronics. Analog Devices has many precision op amps that fit the definition and range of these applications.

Low Input Bias Current Amplifiers (<=100 pA)

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SortOrderPart#Vs span
(min)
(V)
Vs span
(max)
(V)
Iq/Amp
(typ)
(A)
# of AmpsIbias
(max)
(A)
Vos
(max)
(V)
Vos TC
(typ)
(V/°C)
GBP
(typ)
(Hz)
Slew Rate
(typ)
(V/us)
0.1 to 10 Hz VNoise
(typ)
(V p-p)
VNoise Density
(typ)
(V/rtHz)
US Price 1000 to 4999
($ US)
1ADA4622-4 5 30 665µ 4 10p 350µ 8M 23 750n 12.5n $3.38
2ADA4622-1 5 30 715µ 1 10p 350µ 8M 23 750n 12.5n $1.26
3ADA4622-2 5 30 665µ 2 10p 350µ 8M 23 0.75µ 12.5n $1.97
4ADA4530-1Reference Circuit Available 4.5 16 900µ 1 20f 40µ 0.13µ 2M 1.4 14n $11.40
5ADA4610-1 10 36 1.6m 1 25p 400µ- 16.3M 25 450n 7.3n $0.90
6ADA4350 3.3 12 8.5m 1 1p 80µ 100n 175M 100- 5n $5.73
7ADA4610-4 10 36 1.6m 4 25p 400µ 16.3M 25 450n 7.3n $3.65
8AD8244 3 36 180µ 4 10p 350µ-- 800m 400n 13n $1.81
9ADA4666-2 3 18 630µ 2 15p 2.2m 600n 4M 2 18n $0.85
10ADA4661-2Reference Circuit Available 3 18 630µ 2 3p 100µ 600n 4M 2.2 18n $1.13
11ADA4500-2Reference Circuit Available 2.7 5.5 1.55m 2 2p 120µ 900n 10M 5.5 14.5n $0.98
12AD8659 2.7 18 22µ 4 20p 350µ 230k 80m 45n $1.35
13ADA4610-2 10 36 1.6m 2 25p 400µ 500n 16.3M 25 450n 7.3n $1.43
14ADA4001-2 9 36 2m 2 30p 1.5m 16.7M 25- 7.7n $1.09
15ADA4638-1Reference Circuit Available 4.5 30 850µ 1 90p 4.5µ 80n 1.5M 1.5 1.2µ 66n $1.28
16AD823A 3 36 5.1m 2 25p 3.5m 10M 35- 13n $2.51
17AD8657Reference Circuit Available 2.7 18 22µ 2 20p 350µ 230k 80m 45n $0.95
18ADA4891-4Reference Circuit Available 2.7 5.5 4.4m 4 50p 10m 105M 170- 9n $1.09
19ADA4891-3 2.7 5.5 4.4m 3 50p 10m 105M 170- 9n $0.89
20ADA4637-1 9 30 7m 1 5p 200µ 79.9M 170 700n 4.8n $3.47
21ADA4891-2 2.7 5.5 4.4m 2 50p 10m 105M 170- 9n $0.69
22ADA4891-1 2.7 5.5 4.4m 1 50p 10m 105M 170- 9n $0.49
23ADA4691-4 2.7 5.5 165µ 4 5p 2.5m 3.6M 1.3 3.2µ 13n $0.90
24ADA4692-4 2.7 5.5 225µ 4 5p 2.5m 3.6M 1.3- 13n $0.85
25ADA4051-1 0 5 15µ 1 70p 17µ 20n 125k 60m 1.96µ 95n $0.93
26AD8505 1.8 5 16.5µ 1 10p 2.5m 95k 13m 2.8µ 45n $0.47
27ADA4691-2 2.7 5.5 165µ 2 5p 2.5m 3.6M 1.3 3.2µ 13n $0.57
28ADA4627-1Reference Circuit Available 9 36 7m 1 5p 200µ 19M 56 700n 4.8n $3.47
29ADA4505-1 1.8 5 1 2p 3m 50k 6m 2.95µ 65n $0.41
30ADA4062-4 8 36 165µ 4 50p 1.5m 1.4M 3.3 1.5µ 36n $1.21
31ADA4051-2Reference Circuit Available 0 5 13µ 2 70p 15µ 20n 125k 60m 1.96µ 95n $1.47
32ADA4665-2 5 16 400µ 2 1p 4m 1.2M 1 27n $0.70
33ADA4817-2Reference Circuit Available 5 10 19m 2 20p 2m 410M 870- 4n $4.98
34ADA4817-1 5 10 19m 1 20p 2m 410M 870- 4n $2.95
35ADA4505-4 1.8 5 4 2p 3m 50k 6m 2.95µ 65n $1.01
36ADA4062-2Reference Circuit Available 8 36 165µ 2 50p 1.5m 1.4M 3.3 1.5µ 36n $0.75
37ADA4505-2Reference Circuit Available 1.8 5 2 2p 3m 50k 6m 2.95µ 65n $0.57
38AD8508 1.8 5 500µ 4 10p 2.5m 95k 13m 2.8µ 45n $1.02
39AD8639Reference Circuit Available 4.5 16 1.5m 2 75p 30n 1.5M 2 1.2µ 60n $1.86
40AD8669 5 16 285µ 4 45p 300µ 1.5µ 540k 300m 2.5µ 21n $2.70
41AD8647 2.7 5.5 2m 2 1p 2.5m 1.8µ 24M 11 2.3µ 6n $0.75
42AD8638Reference Circuit Available 4.5 16 1.5m 1 75p 30n 1.5M 2 1.2µ 60n $1.08
43AD8506 1.8 5 20µ 2 10p 2.5m 95k 13m 2.8µ 45n $0.57
44AD8663 5 16 285µ 1 45p 300µ 1.5µ 540k 300m 2.5µ 21n $1.17
45AD8646Reference Circuit Available 2.7 5.5 2m 2 1p 2.5m 1.8µ 24M 11 2.3µ 6n $0.65
46ADA4000-4 8 36 1.65m 4 40p 1.7m 5M 20 16n $2.22
47ADA4000-2 8 36 1.65m 2 40p 1.7m 5M 20 16n $1.31
48ADA4000-1Reference Circuit Available 8 36 1.65m 1 40p 1.7m 5M 20 16n $0.73
49AD8667 5 16 285µ 2 45p 300µ 1.5µ 540k 300m 2.5µ 21n $1.58
50AD8539 2.7 5 210µ 2 60p 15µ 30n 430k 400m 1.2µ 52n $0.72
51ADTL084 8 36 1.2m 4 100p 5.5m 10µ 5M 20- 16µ $0.92
52ADTL082 8 36 1.2m 2 100p 5.5m 10µ 5M 20- 16n $0.43
53AD8504 1.8 5 750n 4 10p 3m 7k 4m 190n $1.00
54AD8502Reference Circuit Available 1.8 5 750n 2 10p 3m 7k 4m 190n $0.70
55AD8684 9 36 210µ 4 20p 1m 10µ 3.5M 9 1.3µ 36n $2.44
56AD8682 9 36 210µ 2 20p 1m 10µ 3.5M 9 1.3µ 36n $1.66
57AD8665 5 16 1.55m 1 1p 2.5m 4M 3.5 2.5µ 8n $0.83
58AD8666 5 16 1.55m 2 1p 2.5m 4M 3.5 2.5µ 8n $0.93
59AD8664 5 16 1.55m 4 1p 160µ 4M 3.5 2.5µ 10n $2.23
60AD8668 5 16 1.55m 4 1p 2.5m 4M 3.5 2.5µ 8n $1.75
61AD8662 5 16 1.4m 2 1p 160µ 4M 3.5 2.5µ 10n $1.37
62AD8500Reference Circuit Available 1.8 5 750n 1 10p 1m 7k 4m- 190n $0.71
63AD8648 2.7 5.5 2m 4 1p 2.5m 1.8µ 24M 11 2.3µ 6n $0.92
64AD8613 1.8 5 38µ 1 1p 2.2m 2.5µ 350k 100m 2.3µ 22n $0.46
65AD8538 2.7 5 180µ 1 25p 13µ 30n 430k 400m 50n $0.50
66AD8661 5 16 1.4m 1 1p 160µ 4M 3.5 2.5µ 10n $1.08
67AD8619 1.8 5 38µ 4 1p 2.2m 400k 100m 2.3µ 22n $1.11
68AD8617Reference Circuit Available 1.8 5 38µ 2 1p 2.2m 400k 100m 2.3µ 22n $0.71
69AD8656 2.7 5.5 4.5m 2 10p 250µ 400n 28M 11- 2.7n $1.25
70AD8694Reference Circuit Available 2.7 5.5 1.05m 4 1p 2m 1.3µ 10M 5 1.6µ 6.5n $0.80
71AD8655 2.7 5.5 4.5m 1 10p 250µ 400n 28M 11- 2.7n $0.80
72AD8643 5 26 290µ 4 1p 750µ 2.5µ 3.5M 3 4.2µ 27.5n $3.85
73AD8642 5 26 290µ 2 1p 750µ 2.5µ 3.5M 3 4.2µ 27.5n $2.35
74AD8691 2.7 5.5 1.05m 1 1p 2m 10M 5 1.6µ 6.5n $0.48
75AD8615Reference Circuit Available 2.7 5.5 1.7m 1 1p 100µ 24M 12 2.4µ 7n $0.76
76AD8692Reference Circuit Available 2.7 5.5 1.05m 2 1p 2m 1.3µ 10M 5 1.6µ 6.5n $0.60
77AD8652 2.7 5.5 9m 2 10p 350µ 50M 41- 4.5n $1.99
78AD8641Reference Circuit Available 5 26 290µ 1 1p 750µ 2.5µ 3.5M 3 4.2µ 27.5n $1.47
79AD8629Reference Circuit Available 2.7 5.5 850µ 2 100p 2n 2.5M 1 500n 22n $1.47
80AD8618Reference Circuit Available 2.7 5.5 2m 4 1p 60µ 1.5µ 24M 12 2.4µ 7n $2.29
81AD8616 2.7 5.5 1.7m 2 1p 60µ 1.5µ 24M 12 2.4µ 7n $1.29
82AD8651 2.7 5.5 9m 1 10p 350µ 50M 41- 4.5n $1.13
83AD8626 5 26 850µ 2 1p 750µ 2.5µ 5M 5 2.5µ 16n $2.63
84AD8625 5 26 850µ 4 1p 750µ 2.5µ 5M 5 2.5µ 16n $4.09
85AD8609Reference Circuit Available 1.8 5 40µ 4 1p 300µ 316k 100m 2.3µ 22n $1.85
86AD8607 1.8 5 50µ 2 1p 300µ 316k 100m 2.3µ 22n $1.02
87AD8513 9 30 2.5m 4 80p 1m 1.7µ 8M 20- 7.6n $4.08
88AD8603Reference Circuit Available 1.8 5 50µ 1 1p 300µ 316k 100m 2.3µ 22n $0.68
89AD8627 5 26 850µ 1 1p 750µ 2.5µ 5M 5 2.5µ 16n $1.60
90AD8608Reference Circuit Available 2.7 5 1.2m 4 1p 300µ 1.5µ 10M 5 2.3µ 6.5n $1.77
91AD8067 5 24 7m 1 5p 1m 54M 640- 6.6n $1.89
92AD8605Reference Circuit Available 2.7 5 1.2m 1 1p 300µ 10M 5 2.3µ 6.5n $0.73
93AD8515Reference Circuit Available 1.8 5 500µ 1 30p 6m 5M 2.7- 20n $0.28
94AD8510Reference Circuit Available 9 30 2.5m 1 80p 400µ 8M 20- 7.6n $1.05
95AD8066Reference Circuit Available 5 24 7.4m 2 7p 1.5m 145M 180- 7n $2.32
96AD8033 5 24 3.3m 1 12p 2m 40M 80- 11n $1.13
97AD8628Reference Circuit Available 2.7 5.5 850µ 1 100p 2n 2.5M 1 500n 22n $0.96
98AD8620Reference Circuit Available 10 26 3.5m 2 10p 150µ 500n 25M 60 1.8µ 6n $7.50
99AD8606Reference Circuit Available 2.7 5 1.2m 2 1p 300µ 10M 5 2.3µ 6.5n $1.31
100AD8065Reference Circuit Available 5 24 7.4m 1 7p 1.5m 145M 180- 7n $1.61
101AD8034 5 24 3.3m 2 12p 2m 40M 80- 11n $1.77
102AD8512Reference Circuit Available 9 30 2.5m 2 80p 400µ 8M 20- 7.6n $1.56
103AD8610Reference Circuit Available 10 26 3.5m 1 10p 100µ 500n 25M 60 1.8µ 6n $3.75
104AD8604 2.7 5.5 750µ 4 60p 600µ 8.4M 6- 18n $1.01
105AD8601Reference Circuit Available 2.7 5 750µ 1 60p 500µ 8.4M 6- 18n $0.39
106AD8602 2.7 5.5 750µ 2 60p 500µ 8.4M 6- 18n $0.48
107AD8574 2.7 5.5 975µ 4 50p 5n 1.5M 400m 1.3µ 51n $3.40
108AD8572 2.7 5.5 975µ 2 50p 5n 1.5M 400m 1.3µ 51n $1.78
109AD8571 2.7 5.5 975µ 1 50p 5n 1.5M 400m 1.3µ 51n $1.11
110AD8554 2.7 5 975µ 4 50p 5n 1.5M 400m 42n $3.43
111AD8552 2.7 5 975µ 2 50p 5n 1.5M 400m 42n $1.94
112AD8551 2.7 5 975µ 1 50p 5n 1.5M 400m 42n $1.22
113AD8591 2.5 6 1.25m 1 50p 25m 20µ 3M 5- 30n $0.29
114AD8592 2.5 6 1.25m 2 50p 25m 20µ 3M 5- 30n $0.39
115AD8544 2.5 5 65µ 4 60p 6m 1M 920m- 38n $0.54
116AD8542Reference Circuit Available 2.5 5 65µ 2 60p 6m 1M 920m- 38n $0.38
117AD8541Reference Circuit Available 2.5 5 65µ 1 60p 6m 1M 920m- 38n $0.27
118AD825 10 36 6.5m 1 40p 2m 10µ 26M 140- 12n $1.84
119AD8531 3 6 1.25m 1 50p 25m 20µ 3M 5- 30n $0.27
120AD8534 3 6 1.25m 4 50p 25m 20µ 3M 5- 30n $0.60
121AD8532 3 6 1.25m 2 50p 25m 20µ 3M 5- 30n $0.43
122AD823 3 36 5.2m 2 30p 3.5m 10M 25- 16n $3.07
123AD824 2.7 30 560µ 4 35p 2.5m 2M 2 16n $5.26
124AD822Reference Circuit Available 5 30 900µ 2 25p 1.5m 1.8M 3 13n $3.07
125AD820 5 30 900µ 1 10p 1m 1.8M 3 13n $1.97
126AD795 8 36 1.5m 1 2p 500µ 1.6M 1 9n $3.65
127OP482 9 36 210µ 4 100p 4m 10µ 4M 9 1.3µ 36n $2.16
128OP282 9 36 210µ 2 100p 3m 10µ 4M 9 1.3µ 36n $1.42
129OP297 4 40 625µ 2 100p 50µ 200n 500k 150m 500n 17n $2.61
130OP249 9 36 3.5m 2 75p 750µ 4.7M 22 16n $2.05
131OP97 4 40 600µ 1 100p 25µ 300n 900k 200m 500n 14n $1.28
132AD744 9 36 3.5m 1 100p 500µ 13M 75 16n $3.01
133AD549 10 36 700µ 1 60f 500µ 10µ 1M 3 35n $22.26
134AD712 9 36 2.8m 2 75p 1m 4M 20 16n $1.86
135AD711 9 36 2.8m 1 50p 1m 4M 20 16n $1.46

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