INA116PA

Overview

The INA116PA is a monolithic FET-input instrumentation amplifier from Texas Instruments, featuring Difet inputs for extremely low input bias current. It operates on dual supplies ranging from ±4.5V to ±18V DC. Key electrical parameters include an input offset voltage of 0.5mV and a slew rate of 0.8V/μs. The device is housed in a 16-PDIP package and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Monolithic FET-input design with Difet technology
• Extremely low input bias current performance
• Complete instrumentation amplifier integration

Applications

• Precision measurement systems
• Industrial process control
• Medical instrumentation

Procurement Notes

Verify the specific suffix 'PA' corresponds to the 16-PDIP package variant when sourcing. Confirm that the required operating temperature range aligns with the standard industrial specification. Ensure supply chain channels provide authentic Texas Instruments components to maintain signal integrity and reliability standards.

Selection Notes

Select this component when ultra-low input bias current is critical for high-impedance sensor interfaces. The Difet input stage offers superior performance compared to standard bipolar alternatives. Evaluate the ±4.5V to ±18V supply range against system power constraints before finalizing the design architecture.

Part Context

This part belongs to the family of precision instrumentation amplifiers designed for applications requiring high common-mode rejection and minimal input loading. The INA116 series utilizes specialized FET input stages to achieve performance levels suitable for sensitive analog signal conditioning tasks in demanding environments.

Replacement Considerations

Consult official substitution guides for compatible instrumentation amplifiers with similar FET-input characteristics. Verify pin compatibility and electrical parameter overlaps before integrating alternative components into existing designs.