The AD8655/AD8656 is a low noise, high precision CMOS amplifier that features a 2.7nV/√Hz noise, a 250μV offset voltage, a 0.4μV/°C offset voltage drift, a 28MHz bandwidth, a 2.7V to 5.5V supply range, and a -40°C to +125°C operating temperature range. It is suitable for ADC and DAC buffers, audio, industrial controls, precision filters, digital scales, automotive collision avoidance, PLL filters, and other applications.
The AD8655/AD8656 are low‑noise, precision CMOS amplifiers that leverage Analog Devices' DigiTrim® technology for high dc accuracy. They feature rail‑to‑rail input and output, operate from –40 °C to +125 °C, and are offered in Pb‑free 8‑lead MSOP and SOIC packages. Key specifications include a typical input offset voltage of 250 µV, offset drift as low as 0.4 µV/°C, input bias current of 10 pA, noise density of 2.7 nV/√Hz at 10 kHz, gain‑bandwidth product of 28 MHz, slew rate of 11 V/µs, and output current capability of ±220 mA. The AD8656 version is qualified for automotive applications.
| Input Noise Density (10 kHz) | 2.7 nV/√Hz |
|---|---|
| Gain‑Bandwidth Product | 28 MHz |
| Output Current Capability | ±220 mA |
Yes, the AD8656 version is qualified for automotive applications.
The input voltage noise density is 2.7 nV/√Hz at 10 kHz.