ADA4857-1/ADA4857-2 is a high performance, low power, low noise, high speed operational amplifier with 850 MHz of -3 dB bandwidth and 2800 V/µs slew rate. The device is suitable for instrumentation, IF and baseband amplifiers, active filters, ADC drivers, and DAC buffers.
The ADA4857‑1 and ADA4857‑2 are ultra‑low distortion, low‑power, high‑speed voltage‑feedback operational amplifiers. They offer up to 850 MHz –3 dB bandwidth, 2800 V/µs slew rate, and operate from a 5 V to 10 V supply, making them suitable for instrumentation, ADC drivers, DAC buffers and active filters.
Both devices are available in surface‑mount packages: an 8‑lead LFCSP (3 mm × 3 mm) or SOIC for the ADA4857‑1, and a 16‑lead LFCSP (4 mm × 4 mm) for the ADA4857‑2. They support an industrial temperature range of –40 °C to +125 °C and include a power‑down pin for low‑standby power consumption.
| Supply Voltage Range | 5 V to 10 V |
|---|---|
| –3 dB Bandwidth (LFCSP/SOIC, G=+1, Vout=0.2 Vpp) | 850 MHz / 750 MHz |
| Slew Rate | 2800 V/µs |
| Quiescent Current (typical) | 5.5 mA |
| Output Current | 50 mA |
| Input Voltage Noise (100 kHz) | 4.4 nV/√Hz |
| Input Current Noise (100 kHz) | 1.5 pA/√Hz |
| Operating Temperature Range | –40 °C to +125 °C |
It operates from 5 V up to 10 V.
The device has a slew rate of 2800 V/µs.
It can source or sink up to 50 mA of output current.
It is rated for –40 °C to +125 °C operation.