LTC1966CMS8#TR

Overview

The LTC1966CMS8#TR is a precision, micropower true RMS-to-DC converter utilizing patented delta-sigma computational technology. It operates on a single supply voltage ranging from 2.7V to 5.5V or dual supplies up to ±5.5V. The device features a typical supply current of 155µA and reduces to 0.5µA in shutdown mode. It accepts single-ended or differential inputs with rail-to-rail common-mode range and supports peak factors up to 4. The component is housed in an 8-pin MSOP package.

Feature Summary

• Implements delta-sigma computational technique for high-accuracy RMS-to-DC conversion
• Supports flexible input configurations including single-ended and differential modes
• Provides rail-to-rail output with independent reference pin for level shifting
• Features ultra-low power consumption with dedicated low-power shutdown capability

Applications

• Handheld measurement devices
• True RMS digital multimeters
• Panel meters
• AC+DC true RMS measurements

Procurement Notes

Verify the specific suffix TRPBF against official Analog Devices documentation to confirm tape and reel packaging requirements. Ensure the order matches the exact part number for surface mount assembly. Cross-reference the manufacturer's latest datasheet to confirm active status and environmental compliance details prior to procurement.

Selection Notes

Select this component for applications requiring precise RMS-to-DC conversion with minimal power consumption. The delta-sigma architecture offers superior linearity compared to traditional log-antilog converters. Consider the wide input dynamic range and flexibility for portable systems where battery life and accuracy are critical constraints.

Part Context

This device belongs to the LTC1966 family of precision RMS-to-DC converters manufactured by Analog Devices Inc. It represents an evolution in signal conditioning technology by replacing complex analog multiplier circuits with computational techniques. The family focuses on simplifying system calibration while maintaining high performance in compact form factors.

Replacement Considerations

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