The ADA4817-1/ADA4817-2 is a low noise, 1GHz FastFET Op Amp with high output current and low input bias current.
The ADA4817‑1 (single) and ADA4817‑2 (dual) FastFET™ amplifiers are unity‑gain stable, ultrahigh‑speed voltage‑feedback op‑amps with FET inputs. They are offered in 8‑lead LFCSP, 8‑lead SOIC (single) and 16‑lead LFCSP (dual) packages that include an exposed paddle for efficient heat removal and a low‑distortion pinout.
These devices target photodiode pre‑amps, data‑acquisition front ends, wide‑band transimpedance applications, active filtering and ADC driving. Key performance includes a 1050 MHz –3 dB bandwidth (±5 V), 870 V/µs slew rate, 9 ns 0.1 % settling time, 4 nV/√Hz voltage noise at 100 kHz, and a 40 mA continuous output current.
| -3 dB Bandwidth (±5 V) | 1050 MHz |
|---|---|
| Slew Rate | 870 V/µs |
| Settling Time (0.1 %) | 9 ns |
| Input Bias Current | 2 pA |
| Input Capacitance (Common‑mode) | 1.3 pF |
| Voltage Noise (100 kHz) | 4 nV/√Hz |
| Output Current | 40 mA |
| Supply Voltage Range | 5 V to 10 V |
| Quiescent Current per Amplifier | 19 mA |
| Power‑Down Quiescent Current | 1.5 mA |
| Maximum Operating Temperature | +105 °C |
| Maximum Supply Voltage | 10.6 V |
The absolute maximum supply voltage is 10.6 V.
The typical slew rate is 870 V/µs.
It can source up to 40 mA of continuous output current.