INA110KUG4

Overview

The INA110KUG4 is a precision instrumentation amplifier from Texas Instruments, featuring fast-settling FET-input technology for high accuracy. It operates on a single supply voltage ranging from 12 V to 36 V with a typical operating current of 3 mA. Key electrical parameters include a 470 kHz bandwidth, 12 V/µs slew rate, and 106 dB common-mode rejection ratio (CMRR). The device offers low input bias current of 50 pA and input offset voltage of 250 µV. It provides gain settings of 1, 10, 100, or 1000 V/V via an external resistor. Packaged in a CDIP-16 through-hole format, it supports operation between -55°C and +125°C.

Feature Summary

• Fast-settling FET-input architecture ensures rapid stabilization after gain changes.
• High accuracy performance with low input bias current and offset voltage.
• Single-supply operation capability within a wide voltage range.

Applications

• Precision data acquisition systems
• Medical equipment signal conditioning
• Industrial process control

Procurement Notes

Verify the specific suffix 'K' indicates military-grade temperature range and reliability standards compared to commercial variants. Confirm package authenticity as CDIP-16. Ensure compatibility with required gain-setting resistors for target applications. Check for RoHS compliance documentation if environmental regulations apply. Validate supplier authorization for TI components to avoid counterfeits.

Selection Notes

Select this component when high-speed settling and precision are critical. The FET input minimizes loading effects on high-impedance sources. Consider the 36 V maximum supply for higher voltage environments. Evaluate the need for military-grade specifications if operating in extreme conditions. Compare against standard instrumentation amplifiers if lower cost suffices for less demanding applications.

Part Context

The INA110 series represents Texas Instruments' legacy precision instrumentation amplifiers. The KUG4 variant specifically denotes the ceramic dual-in-line package with military qualification. This part belongs to a family known for combining speed with accuracy, suitable for demanding analog signal processing tasks where traditional bipolar inputs might introduce excessive bias currents.

Replacement Considerations

INA110CU: Commercial grade version with limited temperature range. INA110EU: Extended temperature commercial variant. Verify pinout compatibility and gain resistor requirements when substituting. Ensure voltage and current ratings meet application needs.