INA118P

Overview

The INA118P is a precision, low-power instrumentation amplifier manufactured by Texas Instruments. It features a single channel with an 800 kHz bandwidth and a slew rate of 2.6 V/us. Key electrical parameters include a common-mode rejection ratio (CMRR) of 70 dB, input bias current of 5 nA, and input offset voltage of 600 uV. The device operates on supply voltages ranging from 10 V to 36 V, consuming 1.5 mA of operating current. It supports output currents of 20 mA per channel and functions within a temperature range of -40 C to +85 C.

Feature Summary

• Precision instrumentation amplifier design for accurate signal conditioning
• Low power consumption suitable for battery-operated applications
• High common-mode rejection capability for noise reduction
• Single-channel configuration in through-hole packaging

Applications

• Industrial process control systems
• Medical equipment signal processing
• Data acquisition systems
• Strain gauge and bridge sensor interfaces

Procurement Notes

Verify the specific package type and suffix against the official datasheet to ensure compatibility with your PCB footprint and assembly requirements. Confirm RoHS compliance status and moisture sensitivity level before procurement. Check for any recent product lifecycle notices or obsolescence warnings directly from Texas Instruments documentation to avoid supply chain disruptions during production.

Selection Notes

Select this component when high precision and low power are required in a through-hole format. Compare CMRR and offset voltage specifications against application needs. Ensure the 10 V minimum supply voltage aligns with system power rails. Consider thermal performance and board space constraints associated with the DIP-8 package compared to surface-mount alternatives.

Part Context

The INA118 series belongs to Texas Instruments' family of precision instrumentation amplifiers. It is designed for applications requiring high accuracy and low power dissipation. The P suffix indicates a plastic DIP package, distinguishing it from other variants like the UB (SOIC) or PB (DIP). This part is widely used in industrial and medical instrumentation where reliable analog signal amplification is critical.

Replacement Considerations

• INA118PB
• INA118PBG4