INA118U/2K5G4

Overview

The INA118U/2K5G4 is a precision low-power instrumentation amplifier manufactured by Texas Instruments. It features a single channel with a common-mode rejection ratio of 107 dB and an input bias current of 5 nA. The device operates on supply voltages ranging from 2.7 V to 36 V, consuming only 350 uA of quiescent current. It offers a gain error of 0.002% and a maximum input resistance of 10 GOhms. Packaged in an SOIC-8 surface-mount format, it functions within a temperature range of -40°C to +85°C.

Feature Summary

• Precision instrumentation architecture designed for high accuracy signal conditioning
• Low power consumption suitable for battery-operated applications
• High common-mode rejection capability for noise reduction
• Wide single-supply voltage operation flexibility

Applications

• Precision sensor signal conditioning
• Medical instrumentation front-ends
• Industrial process control systems
• Data acquisition systems requiring low power

Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance status against the manufacturer's latest documentation. Confirm the /2K5 packaging designation matches reel requirements for automated assembly lines. Ensure moisture sensitivity level handling procedures are followed during storage and soldering processes to maintain component integrity.

Selection Notes

Select this component when high precision and low power are critical constraints. Compare input offset voltage and bias current specifications against application requirements. Evaluate the SOIC-8 package dimensions for PCB layout compatibility. Consider the 107 dB CMRR for environments with significant common-mode noise interference.

Part Context

This part belongs to the INA118 series of instrumentation amplifiers from Texas Instruments. It shares core architectural similarities with other members like the INA118UB but may differ in specific performance grades or packaging options. The series is known for combining precision analog performance with low power consumption characteristics.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family such as INA118UB if different packaging or grade is required. Verify electrical parameter equivalence before substitution.