INA188IDRJR

Overview

The INA188IDRJR is a precision instrumentation amplifier manufactured by Texas Instruments, featuring zero-drift technology and rail-to-rail output capabilities. It operates within a supply voltage range of 4V to 36V (±2V to ±18V). Key electrical specifications include a maximum input offset voltage of 55µV, a maximum average bias current of 0.0025µA, and a minimum common-mode rejection ratio of 84dB. The device offers a nominal bandwidth of 0.6MHz and is housed in an 8-SON (4x4) package.

Feature Summary

• Utilizes proprietary auto-zeroing techniques to achieve low offset voltage and near-zero drift over temperature and time.
• Supports high-voltage single-supply operation up to 36V with rail-to-rail output swing for maximum dynamic range.
• Delivers high precision with minimal input bias and offset currents suitable for sensitive sensor interfaces.

Applications

• High-side current sensing in industrial automation systems
• Precision signal conditioning for thermocouples and RTDs
• Medical equipment requiring low-noise amplification

Procurement Notes

Verify the specific suffix 'JR' corresponds to the 8-SON (4x4) package when ordering. Confirm that the required operating temperature range aligns with the component's specified limits. Ensure compatibility with the target PCB footprint for the small outline no-leads package before finalizing procurement decisions.

Selection Notes

Select this component when low offset drift and high common-mode rejection are critical. It is suitable for applications requiring operation from a single high-voltage supply. Consider the 8-SON package constraints for thermal management and board space compared to larger SOIC alternatives.

Part Context

This part belongs to Texas Instruments' INA188 family of precision instrumentation amplifiers. The family is characterized by zero-drift architecture designed to eliminate the need for external trimming. The IDRJR variant specifically denotes the tape-and-reel packaging format within the 8-SON enclosure.

Replacement Considerations

Direct substitutes may include other INA188 variants with different packaging options such as INA188IDR or INA188IDRJR.A, provided the pinout and electrical characteristics remain identical. Verify package dimensions carefully when swapping between SON and SOIC formats.

FAQ

What is the maximum supply voltage for the INA188IDRJR?

The maximum supply voltage is 36V, which corresponds to ±18V for dual supplies.

Does the INA188IDRJR support rail-to-rail output?

Yes, the device features rail-to-rail output capability, allowing the output signal to swing close to both supply rails.