INA121U/2K5

Overview

The INA121U/2K5 is a low-power instrumentation amplifier manufactured by Texas Instruments. It features FET inputs and operates within a supply voltage range of 4.5V to 36V, or ±2.25V to ±18V. The device provides a gain bandwidth product of 1MHz and a slew rate of 0.7V/us. It consumes 450uA per channel and functions as a single-channel amplifier in an SOIC-8 package.

Feature Summary

• FET-input architecture for low bias current
• Low power consumption design
• Single-channel instrumentation configuration

Applications

• Battery-powered measurement systems
• Industrial process control
• Medical instrumentation

Procurement Notes

Verify the specific suffix '2K5' indicates tape-and-reel packaging when ordering. Confirm the manufacturer is Texas Instruments, noting that legacy Burr-Brown documentation may reference similar part numbers. Ensure the datasheet matches the exact component specifications before integration into designs.

Selection Notes

Select this component for applications requiring low power operation with FET input characteristics. It is suitable for single-supply or dual-supply environments. Verify that the required gain bandwidth and slew rate meet the signal processing needs of the target circuit.

Part Context

This part belongs to the INA121 family of instrumentation amplifiers. It is a successor to earlier Burr-Brown designs now produced by Texas Instruments. The 'U' designation typically refers to the SOIC package type, while '/2K5' specifies the reel quantity for manufacturing convenience.

Replacement Considerations

INA121UA-2K5

FAQ

What is the input type of the INA121U/2K5?

It utilizes FET inputs.

Does the INA121U/2K5 support dual supplies?

Yes, it supports dual supplies ranging from ±2.25V to ±18V.