The AD842 is a wideband, high output current, fast settling operational amplifier. It features 80 MHz gain bandwidth, extremely fast settling characteristics, low quiescent current, high output current drive capability, low input voltage noise, and low input offset voltage.
The AD842 is a wideband operational amplifier designed for high-speed applications such as line drivers, DAC and ADC buffers, and video amplifiers. It combines DC precision with wideband AC performance, utilizing Analog Devices' junction isolated complementary bipolar process.
Key specifications include a gain bandwidth product of 80 MHz, a slew rate of 375 V/µs, and a fast settling time of 100 ns to 0.01% for a 10 V step. The device offers a minimum output current of 100 mA and is available in various packages including Plastic DIP, Hermetic Metal Can, SOIC, and LCC.
| Gain Bandwidth Product | 80 MHz |
|---|---|
| Slew Rate | 375 V/µs |
| Settling Time | 100 ns to 0.01% |
| Output Current | 100 mA min |
| Input Offset Voltage | 1 mV max |
| Quiescent Supply Current | 14 mA max |
| Input Voltage Noise | 9 nV/√Hz typ |
The AD842 is suitable for line drivers, DAC and ADC buffers, video and pulse amplifiers, and high frequency signal conditioning circuits.
Yes, the device is stable at gains of 2 or greater.
The full power bandwidth is 6.0 MHz for a 20 V peak-to-peak output.