LTC1968IMS8#TRPBF

Overview

The LTC1968IMS8#TRPBF is a true RMS-to-DC converter from Analog Devices, utilizing delta-sigma computational techniques for high linearity and accuracy. It operates on a single supply voltage ranging from 4.5V to 5.5V with a typical supply current of 2.3mA. The device supports rail-to-rail common mode input and differential input ranges up to 1V peak. Key electrical specifications include a 3dB bandwidth independent of input amplitude, wide input bandwidth capabilities, and a separate output reference pin for flexible level shifting. It is housed in an 8-pin MSOP package.

Feature Summary

• Employs delta-sigma computational technique for superior linearity and temperature behavior compared to conventional log-antilog converters
• Supports both single-ended and differential input signals with rail-to-rail common mode range
• Features a separate output reference pin enabling flexible output level shifting alongside rail-to-rail output capability
• Includes a low power shutdown mode that reduces supply current significantly

Applications

• Portable applications requiring space-saving solutions
• System calibration at various input voltages
• Signal conditioning for RMS measurement

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the manufacturer is Analog Devices Inc. Ensure the component matches the 8-MSOP physical footprint. Check RoHS compliance status through official documentation before integration into regulated designs.

Selection Notes

Select this component for applications demanding high linearity and bandwidth independence from input amplitude. It is suitable for designs requiring flexible input configurations (single-ended or differential) and precise RMS-to-DC conversion without complex external calibration networks. Consider the single-supply operation constraints.

Part Context

This part belongs to the LTC1968 series of precision wide bandwidth RMS-to-DC converters manufactured by Analog Devices. It shares architectural similarities with other parts in the family but is distinguished by its specific packaging and delivery format. The series is designed for accurate signal processing in portable and industrial environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.