The document describes the features and characteristics of the AD834 500 MHz four-quadrant multiplier from Analog Devices. It operates from DC to 500 MHz, has differential ±1 V full-scale inputs and differential ±4 mA full-scale output current. It features low distortion, low power consumption, and is suitable for applications such as high-speed real-time computation, wideband modulation and gain control, signal correlation and RF power measurement, voltage-controlled filters and oscillators.
The AD834 is a monolithic, laser‑trimmed four‑quadrant analog multiplier designed for high‑frequency applications. It operates from DC to over 500 MHz, provides differential ±1 V full‑scale inputs, and delivers a typical differential output current of 8.5 mA per side. The device is available in several 8‑lead packages (SOIC, Cerdip, plastic DIP) covering commercial, industrial, and military temperature ranges.
The datasheet includes detailed electrical specifications, absolute maximum ratings, functional block diagrams, and example circuits for wideband operation, transformer coupling, and power measurement. It also references related application notes (AN‑212, AN‑216) and provides ordering information for the various package options.
| Bandwidth | 500 MHz |
|---|---|
| Quiescent Current (positive supply) | 11 mA typical |
| Full‑Scale Input Range | ±1 V differential |
| Output Current per Side | 8.5 mA |
| Input Resistance | 25 kΩ differential |
| Distortion (10 MHz) | -60 dB |
| Commercial Temperature Range | 0 °C to +70 °C |
| Package Options | 8‑Lead SOIC, 8‑Lead Cerdip, 8‑Lead Plastic DIP |
Typical quiescent current is about 11 mA on the positive supply and 28 mA on the negative supply.
The device provides a guaranteed bandwidth of 500 MHz.
The AD834 is offered in 8‑lead SOIC, 8‑lead Cerdip, and 8‑lead plastic DIP packages.