INA110KU/1K

Overview

The INA110KU/1K is a precision instrumentation amplifier from Texas Instruments, featuring FET inputs for high accuracy and fast settling. It operates within a supply voltage range of 12 V to 36 V and consumes 3 mA of operating current. Key electrical specifications include a 2.5 MHz bandwidth, 12 V/us slew rate, 106 dB common-mode rejection ratio (CMRR), 50 pA input bias current, and 250 uV input offset voltage. The device supports gains of 1, 10, 100, and 1000 V/V with a maximum input resistance of 5 TOhms. It is housed in an SOIC-16 surface-mount package and functions reliably between -55°C and +125°C.

Feature Summary

• Fast-settling performance with FET-input architecture
• Very high accuracy with low input offset voltage and bias current
• High common-mode rejection ratio for precise signal conditioning

Applications

• Precision data acquisition systems
• Medical equipment signal processing
• Industrial process control instrumentation

Procurement Notes

Verify the specific suffix KU/1K against the manufacturer's official datasheet to confirm the SOIC-16 package and reel packaging configuration. Ensure the order matches the exact part number to avoid confusion with through-hole variants like the INA110SG. Confirm RoHS compliance status and humidity sensitivity handling requirements during storage and assembly.

Selection Notes

Select this component when high-speed settling and low noise are required alongside high input impedance. The FET input stage minimizes loading effects on high-impedance sources. Compare the 2.5 MHz bandwidth against application signal frequencies to ensure adequate response time. Verify that the 12 V minimum supply voltage aligns with the system power rails.

Part Context

The INA110 belongs to a family of instrumentation amplifiers designed for high-performance analog signal conditioning. The KU variant specifically denotes the surface-mount SOIC-16 package option, distinguishing it from the through-hole CDIP-16 SG version. This series is engineered for applications demanding stability and precision in noisy environments.

Replacement Considerations

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