MPY634KU/1KE4

Overview

The MPY634KU/1KE4 is a wide bandwidth, high accuracy four-quadrant analog multiplier manufactured by Texas Instruments. It features differential X, Y, and Z inputs for versatile configuration as a multiplier, squarer, divider, or square-rooter. The device includes an internal wide-bandwidth output amplifier and an accurate laser-trimmed voltage reference for precise scale factor setting. It operates within a temperature range of -40°C to +85°C and utilizes a 16-pin SOIC (DW) package.

Feature Summary

• Four-quadrant analog multiplication with differential X, Y, and Z inputs
• Internal wide-bandwidth output amplifier reduces design complexity
• Accurate internal voltage reference provides precise scale factor setting
• Laser-trimmed characteristics minimize the need for external trimming

Applications

• Precision analog signal processing
• Modulation and demodulation circuits
• Voltage-controlled amplifiers
• Video signal processing
• Voltage-controlled filters and oscillators

Procurement Notes

Verify that the component corresponds to the specific MPY634KU/1KE4 designation rather than other variants like the MPY634KP. Confirm the package type is the 16-pin SOIC (DW) format. Ensure the operating environment falls within the specified -40°C to +85°C temperature range. Check for RoHS compliance status if required by assembly standards.

Selection Notes

Select this component when high-speed analog multiplication is required at IF, RF, or video frequencies. The integrated output amplifier simplifies circuit design compared to discrete solutions. Consider the differential input architecture for applications requiring common-mode rejection or balanced signal handling. Evaluate the total error specifications against system accuracy requirements.

Part Context

This part belongs to the MPY634 family of precision analog multipliers from Texas Instruments. It is designed to replace older discrete multiplier solutions by integrating the core, biasing, and output stages into a single monolithic device. The KU suffix indicates the SOIC package variant, while /1KE4 denotes the tape and reel packaging configuration.

Replacement Considerations

MPY634AM

FAQ

How is the scale factor adjusted?

The scale factor is factory-adjusted to 10V but can be modified using external resistors connected between the SF pin and the negative supply rail.

What is the typical small-signal bandwidth?

The typical small-signal bandwidth is 10 MHz.