INA333AIDGKTG4

Overview

The INA333AIDGKTG4 is a 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 a power supply rejection ratio (PSRR) of 120 dB. Input bias current is 70 pA, while input offset voltage is 10 µV. It operates on a supply voltage range of 1.8 V to 5.5 V with a quiescent current of 50 µA. The output can source up to 40 mA. Gain is adjustable from 1 V/V to 1000 V/V. It functions within a temperature range of -40°C to +125°C and is housed in an 8-VSSOP package.

Feature Summary

• Zero-drift architecture minimizes offset voltage drift over time and temperature changes.
• Low power consumption suitable for battery-operated applications.
• High precision performance with low input bias current and high CMRR.

Applications

• Programmable Logic Controller (PLC) I/O modules
• Medical equipment signal conditioning
• Industrial process control systems

Procurement Notes

Verify the specific suffix 'TG4' against the manufacturer's official datasheet to confirm RoHS compliance status and pinout compatibility. Ensure the ordering part number matches the exact package variant required for your PCB footprint. Cross-reference with authorized distributors to confirm availability and authenticity of the component batch.

Selection Notes

Select this component when low drift and high precision are critical for DC signal amplification. The wide gain range allows flexibility in sensor interface design. Consider the 8-VSSOP package size for space-constrained layouts. Verify that the 1.8 V minimum supply voltage aligns with your system's power rails.

Part Context

This part belongs to the INA333 family of zero-drift instrumentation amplifiers. It is designed for high-accuracy applications requiring stable gain over temperature. The 'A' grade indicates tighter specifications for offset voltage and drift compared to standard grades. It serves as a precision front-end for various analog signal chains.

Replacement Considerations

Check for direct substitutes like INA333AIDGKR or INA333AIDRGT. Ensure functional equivalence in terms of zero-drift technology and package dimensions. Verify that alternative parts meet the same electrical requirements for bandwidth and power consumption.