INA333AIDGKT

Overview

The INA333AIDGKT is a precision, low-power 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 operates on a supply voltage range of 1.8 V to 5.5 V with a quiescent current of 50 uA. Key electrical specifications include a common-mode rejection ratio (CMRR) of 100 dB, an input bias current of 200 pA, and an input offset voltage of 25 uV. It provides a gain range from 1 V/V to 1000 V/V and delivers an output current of 40 mA per channel. The component is housed in an 8-WSON package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Low power consumption suitable for battery-operated applications
• High precision with low input offset voltage and bias current
• Wide common-mode rejection ratio for noise immunity
• Single-supply operation capability

Applications

• Industrial process control systems
• Medical equipment signal conditioning
• Strain gauge and load cell interfaces
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'KT' against the official Texas Instruments datasheet to confirm tape-and-reel packaging details and moisture sensitivity level. Ensure the order matches the exact WSON-8 footprint requirements. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity. Check for any recent product change notices regarding marking or assembly sites.

Selection Notes

Select this component when high accuracy is required alongside minimal power usage. The wide CMRR makes it suitable for noisy environments. Compare input offset voltage and drift specifications against application tolerance levels. Consider the WSON-8 package size constraints during PCB layout. Verify that the 150 kHz bandwidth meets the signal frequency requirements of the target system.

Part Context

This part belongs to the INA333 family of zero-drift instrumentation amplifiers. It is designed for applications requiring high precision and low power. The family includes variants with different packages such as VSSOP and WSON. The INA333 series is commonly used in sensor signal conditioning where small signals must be amplified accurately.

Replacement Considerations

Check for direct pin-compatible alternatives within the INA333 family. Verify if other Texas Instruments instrumentation amplifiers offer similar bandwidth and power specs. Ensure substitute parts match the 8-pin WSON package dimensions. Confirm that replacement components meet the same electrical performance criteria.