The document introduces the features and characteristics of the AD842 product. AD842 is a wideband, high output current, fast settling op amp with features such as 80MHz gain bandwidth, low quiescent current, high output current drive capability, low input voltage noise and low input offset voltage.
The AD842 is a wideband, high‑output‑current operational amplifier featuring an 80 MHz gain‑bandwidth product, 375 V/µs slew rate, and fast settling of 100 ns to 0.01 % for a 10 V step. It offers low input offset voltage (1 mV max) and low input voltage noise (9 nV/√Hz), making it suitable for high‑frequency signal‑conditioning, video, pulse, and data‑acquisition applications.
The device is offered in multiple package options—including Plastic DIP, Hermetic Metal Can, Hermetic Cerdip, SOIC, LCC, and chip‑form—supporting output currents of at least 100 mA and quiescent supply currents of 13‑14 mA. Detailed specifications, absolute maximum ratings, and application notes are provided for designers.
| Gain Bandwidth Product | 80 MHz (Gain = 2) |
|---|---|
| Slew Rate | 375 V/µs |
| Input Offset Voltage | 1 mV max |
| Input Voltage Noise | 9 nV/√Hz typ |
| Quiescent Supply Current | 14 mA max |
| Output Current | 100 mA min |
The AD842 settles to within 0.01 % of the final value in 100 ns for a 10 V step.
The amplifier can source a minimum of 100 mA output current.
It is offered in Plastic DIP, Hermetic Metal Can, Hermetic Cerdip, SOIC, LCC, and chip form packages.