AD633JR Analog Multiplier IC | Special Purpose Amplifier by Analog Devices | SOIC-8 Package

AD633 – Low-Cost Four-Quadrant Analog Multiplier

The AD633 is a complete four-quadrant multiplier IC available in low-cost 8-lead SOIC and PDIP packages. It is designed to be easy to use, requiring no external components or complex calibration. With its monolithic construction and laser-trimmed calibration, the AD633 provides high stability, reliability, and long-term accuracy.

The device features high input resistance (10 MΩ), minimizing loading effects on signal sources, and operates over a wide supply voltage range from ±8 V to ±18 V. Its internal scaling voltage reference is derived from a stable Zener diode, making the multiplier’s performance essentially independent of supply variations.

Key Features

• Complete four-quadrant analog multiplier

• Available in 8-lead SOIC and PDIP packages

• No external components or calibration required

• Monolithic laser-trimmed design for stability and reliability

• High input resistance: 10 MΩ (minimal signal source loading)

• Wide supply range: ±8 V to ±18 V

• Internal supply-insensitive scaling voltage

Applications

• Analog computation (multiplication, division, square rooting)

• Modulation / Demodulation

• RMS-to-DC conversion

• Variable gain control

• Signal processing systems