ADA4857-1/ADA4857-2 is a high performance, low power, low noise, high speed op amp with 850 MHz bandwidth and 2800 V/μs slew rate.
The ADA4857‑1 and ADA4857‑2 are ultra‑low distortion, low‑noise, high‑speed voltage‑feedback op‑amps. They offer up to 850 MHz –3 dB bandwidth (LFCSP) and a 2800 V/µs slew rate, making them suitable for instrumentation, ADC drivers, DAC buffers and active filters. Both devices operate from a wide 5 V to 10 V supply and include a power‑down pin for low‑power operation.
The datasheet provides detailed electrical specifications, pin configurations for 8‑lead LFCSP, 8‑lead SOIC and 16‑lead LFCSP packages, thermal resistance data, absolute maximum ratings, and ordering information. Mechanical drawings and outline dimensions are included for PCB layout.
| Bandwidth (LFCSP, G=+1, Vout=0.2 Vpp) | 850 MHz |
|---|---|
| Bandwidth (SOIC, G=+1, Vout=0.2 Vpp) | 750 MHz |
| Slew Rate | 2800 V/µs |
| Supply Voltage Range | 5 V to 10 V |
| Quiescent Current (typical) | 5.5 mA |
| Input Voltage Noise (100 kHz) | 44 nV/√Hz |
| Output Current | 50 mA |
| Power‑Down Turn‑On Time | 33 ns |
| Operating Temperature Range | -40 °C to +125 °C |
The ADA4857‑1 provides an –3 dB bandwidth of 850 MHz when configured for a gain of +1 and a 0.2 Vpp output.
The device operates from 5 V up to 10 V.
Typical quiescent current is 5.5 mA.
It is rated for operation from –40 °C to +125 °C.