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.
| Part# Results: 57 | -3dB Bandwidth | Slew Rate | Input Noise (nV/rtHz) | Vos | Ib | # OpAmps per Pkg | V Span Min | V Span Max | Isy per Amplifier | Packages | US Price 1000-4999 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ADA4691-4 | 3.6MHz | 1.3V/µs | 16nV/rtHz | 500µV | 500fA | 4 | 2.7V | 5V | 180µA | CSP | $0.9 |
| AD8505 | 95Hz | 13mV/µs | 45nV/rtHz | 500µV | 1pA | 1 | 1.8V | 5V | 25.5µA | SOT-23 | $0.59 |
| ADA4692-4 | 3.6MHz | 1.3V/µs | 16nV/rtHz | 500µV | 500fA | 4 | 2.7V | 5V | 180µA | SOP | $0.85 |
| ADA4505-1 | 50KHz | 6mV/µs | 65nV/rtHz | 500µV | 500fA | 1 | 1.8V | 5V | 9µA | SOT-23 | $0.55 |
| ADA4627-1 | 19MHz | 40V/µs | 6.1nV/rtHz | 70µV | 1pA | 1 | 10V | 30V | 7mA | CSP, SOIC | $6.75 |
| ADA4691-2 | 3.6MHz | 1.3V/µs | 16nV/rtHz | 500µV | 500fA | 2 | 2.7V | 5V | 180µA | CSP | $0.57 |
| ADA4692-2 | 3.6MHz | 1.3V/µs | 16nV/rtHz | 500µV | 500fA | 2 | 2.7V | 5V | 180µA | CSP, SOIC | $0.55 |
| ADA4665-2 | 1.2MHz | 1V/µs | 32nV/rtHz | 1mV | 100fA | 2 | 5V | 16V | 290µA | SOIC, SOP | $0.7 |
| ADA4505-4 | 50KHz | 6mV/µs | 65nV/rtHz | 500µV | 500fA | 4 | 1.8V | 5V | 7µA | CSP, SOP | $1.01 |
| AD8508 | 95KHz | 13mV/µs | 45nV/rtHz | 500µV | 1pA | 4 | 1.8V | 5V | 15µA | CSP, SOP | $1.2 |
| ADA4505-2 | 50KHz | 6mV/µs | 65nV/rtHz | 500µV | 500fA | 2 | 1.8V | 5V | 7µA | CSP, SOP | $0.67 |
| AD8639 | 1.5MHz | 2V/µs | 80nV/rtHz | 3µV | 1pA | 2 | 5V | 16V | 1.5mA | CSP, SOP | $1.86 |
| AD8506 | 150KHz | 13mV/µs | 45nV/rtHz | 2.5mV | 1pA | 2 | 1.8V | 5.5V | 20µA | CSP, SOP | $0.71 |
| AD8638 | 1.5MHz | 2V/µs | 59nV/rtHz | 3µV | 1pA | 1 | 5V | 16V | 1.5mA | SOIC, SOT-23 | $1.08 |
| AD8647 | 24MHz | 11V/µs | 6nV/rtHz | 600µV | 300fA | 2 | 2.7V | 5.5V | 2mA | SOP | $0.71 |
| AD8669 | 520KHz | 260mV/µs | 21nV/rtHz | 30µV | 300fA | 4 | 5V | 16V | 285µA | SOIC, SOP | $2.7 |
| AD8646 | 24MHz | 11V/µs | 6nV/rtHz | 600µV | 300fA | 2 | 2.7V | 5.5V | 2mA | SOIC, SOP | $0.61 |
| AD8663 | 540KHz | 300mV/µs | 21nV/rtHz | 30µV | 300fA | 1 | 5V | 16V | 285µA | CSP, SOIC | $1.17 |
| AD8667 | 520KHz | 260mV/µs | 21nV/rtHz | 30µV | 300fA | 2 | 5V | 16V | 285µA | SOIC, SOP | $1.58 |
| AD8502 | 7KHz | 4mV/µs | 190nV/rtHz | 500µV | 1pA | 2 | 1.8V | 5.5V | 1µA | SOT-23 | $0.7 |
| AD8504 | 7KHz | 4mV/µs | 190nV/rtHz | 500µV | 1pA | 4 | 1.8V | 5.5V | 1µA | SOP | $1 |
| AD8665 | 4MHz | 3.5V/µs | 10nV/rtHz | 600µV | 200fA | 1 | 5V | 16V | 1.55mA | SOIC, SOT | $0.83 |
| AD8664 | 4MHz | 3.5V/µs | 12nV/rtHz | 50µV | 300fA | 4 | 5V | 16V | 1.55mA | SOIC, SOP | $2.23 |
| AD8666 | 4MHz | 3.5V/µs | 10nV/rtHz | 600µV | 200fA | 2 | 5V | 16V | 1.55mA | SOIC, SOP | $0.93 |
| AD8500 | 7KHz | 4mV/µs | 190nV/rtHz | 235µV | 1pA | 1 | 1.8V | 5.5V | 750nA | SC70 | $0.71 |
| AD8662 | 4MHz | 3.5V/µs | 12nV/rtHz | 1mV | 300fA | 2 | 5V | 16V | 1.55mA | SOIC, SOP | $1.37 |
| AD8668 | 4MHz | 3.5V/µs | 10nV/rtHz | 600µV | 200fA | 4 | 5V | 16V | 1.55mA | SOIC, SOP | $1.75 |
| AD8613 | 400KHz | 100mV/µs | 25nV/rtHz | 400µV | 200fA | 1 | 1.8V | 5V | 38µA | SC70, SOT | $0.46 |
| AD8648 | 22MHz | 12V/µs | 6nV/rtHz | 700µV | 200fA | 4 | 2.7V | 5.5V | 2mA | SOIC, SOP | $0.88 |
| AD8617 | 400KHz | 100mV/µs | 22nV/rtHz | 400µV | 200fA | 2 | 1.8V | 5V | 38µA | SOIC, SOP | $0.71 |
| AD8619 | 400KHz | 100mV/µs | 22nV/rtHz | 400µV | 200fA | 4 | 1.8V | 5V | 38µA | SOIC, SOP | $1.11 |
| AD8661 | 4MHz | 3.5V/µs | 12nV/rtHz | 30µV | 300fA | 1 | 5V | 16V | 1.4mA | CSP, SOIC | $1.08 |
| AD8642 | 3.5MHz | 3V/µs | 27.5nV/rtHz | 50µV | 250fA | 2 | 5V | 26V | 290µA | SOIC, SOP | $2.35 |
| AD8643 | 3.5MHz | 3V/µs | 27.5nV/rtHz | 50µV | 250fA | 4 | 5V | 26V | 290µA | CSP, SOIC | $3.85 |
| AD8694 | 10MHz | 5V/µs | 8nV/rtHz | 400µV | 200fA | 4 | 2.7V | 6V | 1.2mA | SOIC, SOP | $0.9 |
| AD8615 | 23MHz | 12V/µs | 7nV/rtHz | 80µV | 200fA | 1 | 2.7V | 6V | 1.7mA | SOIC, SOP, SOT | $0.76 |
| AD8691 | 10MHz | 5V/µs | 6.5nV/rtHz | 400µV | 200fA | 1 | 2.7V | 6V | 1.05mA | SC70, SOT | $0.51 |
| AD8641 | 3.5MHz | 3V/µs | 27.5nV/rtHz | 50µV | 250fA | 1 | 5V | 26V | 290µA | SC70, SOIC | $1.47 |
| AD8652 | 50MHz | 41V/µs | 5nV/rtHz | 100µV | 1pA | 2 | 2.7V | 5.5V | 9mA | SOIC, SOP | $1.99 |
| AD8692 | 10MHz | 5V/µs | 8nV/rtHz | 400µV | 200fA | 2 | 2.7V | 6V | 1.05mA | SOIC, SOP | $0.64 |
| AD8618 | 24MHz | 12V/µs | 6nV/rtHz | 23µV | 200fA | 4 | 2.7V | 6V | 2mA | SOIC, SOP | $2.29 |
| AD8616 | 24MHz | 12V/µs | 6nV/rtHz | 23µV | 200fA | 2 | 2.7V | 6V | 2mA | SOIC, SOP | $1.29 |
| AD8607 | 400KHz | 100mV/µs | 22nV/rtHz | 12µV | 200fA | 2 | 1.8V | 5V | 50µA | SOIC, SOP | $1.02 |
| AD8609 | 400KHz | 100mV/µs | 22nV/rtHz | 12µV | 200fA | 4 | 1.8V | 5V | 50µA | SOIC, SOP | $1.85 |
| AD8625 | 5MHz | 5V/µs | 16nV/rtHz | 50µV | 250fA | 4 | 5V | 26V | 850µA | SOIC, SOP | $4.09 |
| AD8626 | 5MHz | 5V/µs | 16nV/rtHz | 50µV | 250fA | 2 | 5V | 26V | 850µA | SOIC, SOP | $2.63 |
| AD8651 | 50MHz | 41V/µs | 4.5nV/rtHz | 100µV | 1pA | 1 | 2.7V | 5.5V | 9mA | SOIC, SOP | $1.13 |
| AD8603 | 400KHz | 100mV/µs | 22nV/rtHz | 12µV | 200fA | 1 | 1.8V | 6V | 50µA | SOT | $0.68 |
| AD8627 | 5MHz | 5V/µs | 16nV/rtHz | 50µV | 250fA | 1 | 5V | 26V | 850µA | SC70, SOIC | $1.6 |
| AD8608 | 10MHz | 5V/µs | 6.5nV/rtHz | 20µV | 200fA | 4 | 2.7V | 6V | 1.2mA | SOIC, SOP | $1.58 |
| AD8605 | 10MHz | 5V/µs | 6.5nV/rtHz | 20µV | 200fA | 1 | 2.7V | 6V | 1.2mA | SOT | $0.68 |
| AD8606 | 10MHz | 5V/µs | 6.5nV/rtHz | 20µV | 200fA | 2 | 2.7V | 6V | 1.2mA | SOIC, SOP | $1.19 |
| AD8601 | 8.4MHz | 6V/µs | 18nV/rtHz | 500µV | 200fA | 1 | 2.7V | 6V | 1.2mA | SOT | $0.36 |
| AD8604 | 8.4MHz | 6V/µs | 18nV/rtHz | 500µV | 200fA | 4 | 2.7V | 6V | 1.2mA | SOIC, SOP | $0.9 |
| AD8602 | 8.4MHz | 6V/µs | 18nV/rtHz | 500µV | 200fA | 2 | 2.7V | 6V | 1.2mA | SOIC, SOP | $0.44 |
| AD795 | 1.6MHz | 1V/µs | 9nV/rtHz | 100µV | 1pA | 1 | 8V | 36V | 1.5mA | SOIC | $3.38 |
| AD549 | 1MHz | 3V/µs | 35nV/rtHz | 500µV | 150fA | 1 | 10V | 36V | 700µA | TO-X | $14.3 |
