INA333SHKQ

Overview

The INA333SHKQ is a micro-power, zero-drift instrumentation amplifier manufactured by Texas Instruments. It features a single channel with a 150 kHz bandwidth and a slew rate of 160 mV/us. The device offers a common-mode rejection ratio (CMRR) of 100 dB and an input bias current of 1.4 nA. Input offset voltage is specified at 25 uV. Operating supply voltage ranges from 1.8 V to 5.5 V, with a typical operating supply current of 198 uA. It supports a common-mode voltage range of 1.8 V to 5.5 V. The component operates within a temperature range of -55°C to +210°C and is housed in an 8-CFP package.

Feature Summary

• Zero-drift architecture ensures high precision and stability over time and temperature variations.
• Micro-power consumption enables extended battery life in portable applications.
• Rail-to-rail output capability maximizes dynamic range for low-voltage systems.

Applications

• Portable sensor signal conditioning
• Battery-powered measurement systems
• Industrial process control

Procurement Notes

Verify the specific suffix 'SHKQ' against the official Texas Instruments datasheet to confirm pinout, package dimensions, and electrical characteristics match your design requirements. Ensure compatibility with your PCB footprint and thermal management strategy. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement.

Selection Notes

Select this component when high precision and low power are critical simultaneously. The zero-drift technology minimizes offset voltage changes, reducing the need for external calibration. The wide operating temperature range makes it suitable for harsh environments. Compare input bias current and CMRR specifications against other amplifiers if signal integrity under high impedance sources is a primary concern.

Part Context

The INA333 belongs to Texas Instruments' family of micro-power instrumentation amplifiers. This series is designed for applications requiring high accuracy with minimal power consumption. The SHKQ variant specifically denotes the ceramic flat pack package option, distinguishing it from plastic surface-mount alternatives like the DGKR or QFN packages available in the same functional family.

Replacement Considerations

Public confirmed substitute part numbers: None identified in provided documentation.