INA330AIDGSR

Overview

The INA330AIDGSR is a precision thermistor signal amplifier manufactured by Texas Instruments. It is designed for high-accuracy temperature control applications, specifically optimized for use with 10kΩ thermistors in thermoelectric cooler (TEC) systems. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports single-supply operation. It features rail-to-rail input and output capabilities, ensuring maximum dynamic range. The component is housed in a 10-VSSOP package and is rated for an operating temperature range of -40°C to +85°C.

Feature Summary

• Precision amplification architecture optimized for thermistor signal conditioning
• Rail-to-rail input and output functionality for extended dynamic range
• Single-supply operation capability within low voltage constraints

Applications

• Thermoelectric cooler (TEC) control in optical networking equipment
• Precision temperature monitoring systems utilizing 10kΩ thermistors
• High-accuracy thermal regulation circuits

Procurement Notes

Verify the specific suffix 'DGSR' corresponds to the 10-VSSOP package and tape-and-reel delivery format as defined in the official Texas Instruments datasheet. Confirm that the 'A' grade designation meets the required accuracy specifications for your application. Ensure compatibility with the specified 2.7 V to 5.5 V supply voltage range during integration.

Selection Notes

Select this component when designing circuits requiring precise amplification of resistive temperature detectors, particularly 10kΩ thermistors. It is suitable for applications demanding rail-to-rail performance under single-supply conditions. Consider the 10-VSSOP package size for space-constrained designs. Verify that the operating temperature range of -40°C to +85°C aligns with the environmental requirements of the target system.

Part Context

The INA330 belongs to Texas Instruments' family of precision operational amplifiers tailored for sensor signal conditioning. Unlike general-purpose op-amps, this series is specifically engineered to interface directly with passive sensors like thermistors without requiring external calibration networks. The AIDGSR variant represents the commercial grade version in a surface-mount package, balancing performance with manufacturing efficiency for volume production.

Replacement Considerations

Consult the Texas Instruments datasheet for officially listed alternatives or pin-compatible upgrades. Generic operational amplifiers may not provide the specific optimization for 10kΩ thermistors or the same rail-to-rail characteristics.