INA137PA

Overview

The INA137PA is a precision analog multiplier integrated circuit manufactured by Texas Instruments, housed in a 8-pin PDIP package. It functions as a four-quadrant multiplier with an internal matched resistor network providing a fixed gain of 0.1 V^-1. The device operates on dual power supplies ranging from ±5V to ±18V or single supplies up to 36V. Key electrical specifications include a maximum input offset voltage of 2mV and a bandwidth of 1MHz. It supports high-frequency signal processing applications requiring precise multiplication capabilities.

Feature Summary

• Integrates a matched resistor network for stable four-quadrant analog multiplication
• Provides fixed internal gain of 0.1 V^-1 without external components
• Supports wide dual or single supply voltage operation

Applications

• Variable gain amplifiers
• Automatic gain control circuits
• Frequency mixers
• Phase detectors

Procurement Notes

Verify the specific suffix 'PA' corresponds to the plastic DIP-8 package variant when sourcing. Confirm that the application requires the fixed 0.1 V^-1 gain characteristic inherent to this model. Ensure power supply rails match the specified operational range to maintain performance integrity.

Selection Notes

Select this component when a dedicated analog multiplier is required for signal processing tasks. It is suitable for designs needing precise frequency mixing or modulation without the complexity of external resistor networks. Consider the PDIP package constraints if PCB space allows for through-hole mounting.

Part Context

This part belongs to the INA13x series of analog multipliers designed for linear signal processing. Unlike standard operational amplifiers, it performs mathematical multiplication of two analog signals. The family focuses on providing accurate scaling and mixing functions in industrial and communication systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.