The MPY634 is a wide bandwidth, high accuracy, four- quadrant analog multiplier from Texas Instruments. It has wide bandwidth, high accuracy, easy to use, low cost features, and is suitable for a variety of precision analog signal processing, modulation and demodulation, voltage-controlled amplifiers, video signal processing, voltage-controlled filters and oscillators applications
The MPY634 is a wide‑bandwidth, high‑accuracy four‑quadrant analog multiplier with laser‑trimmed characteristics that simplify design and reduce external parts. It offers a typical bandwidth of 10 MHz, 40.5 % maximum four‑quadrant accuracy, and an internal wide‑bandwidth op‑amp for easy integration into signal‑processing, modulation, and video applications.
The device operates from a nominal +15 VDC supply (acceptable range +8 V to +20 V) and provides differential X, Y, and Z inputs for multiplier, squarer, divider, and square‑rooter functions. Pin configurations are available in 14‑pin PDIP (MPY634KP) and 16‑pin SOIC (MPY634KU) packages, with detailed mechanical dimensions and typical performance curves included.
| Typical Bandwidth | 10 MHz |
|---|---|
| Four‑Quadrant Accuracy (max) | 40.5 % |
| Operating Supply Range | +8 V to +20 V |
| Input Voltage Range | ±10 V |
| Temperature Range (operating) | -40 °C to +125 °C |
| Output Impedance (f < 1 kHz) | 0.1 Ω |
The MPY634 has a typical bandwidth of 10 MHz.
Connect a resistor between the SF pin and the –V supply; a typical value is 54 kΩ.
The device is offered in a 14‑pin PDIP (MPY634KP) and a 16‑pin SOIC (MPY634KU) package.