LTC1967CMS8#PBF

Overview

The LTC1967CMS8#PBF is a precision RMS-to-DC converter manufactured by Analog Devices Inc., housed in an 8-pin MSOP package. It operates within a supply voltage range of 2.7 V to 36 V and consumes a typical quiescent current of 340 µA. The device provides direct conversion of AC signals to DC, supporting frequencies up to 1 MHz with a dynamic range exceeding 50 dB. Designed for high accuracy, it features low nonlinearity and drift, making it suitable for precision measurement applications requiring robust signal conditioning.

Feature Summary

• Direct RMS-to-DC conversion capability eliminates the need for external squaring or filtering circuits.
• Wide dynamic range supports accurate measurements across varying signal amplitudes.
• Low quiescent current consumption enables efficient operation in battery-powered systems.
• High-frequency response allows processing of signals up to 1 MHz.

Applications

• Precision LVDT signal conditioning
• True RMS power monitoring
• Audio level metering
• Vibration analysis instrumentation

Procurement Notes

Verify component authenticity through authorized distributors due to limited availability status. Confirm package integrity upon receipt, as the MSOP-8 form factor requires careful handling during soldering. Ensure supply chain documentation matches the specific suffix #PBF for lead-free compliance. Cross-reference datasheet revisions to confirm pinout consistency before integration into existing designs.

Selection Notes

Select this component when direct RMS conversion is required without complex external circuitry. Consider the 340 µA quiescent current against system power budgets. Evaluate the 1 MHz bandwidth limit against input signal frequency requirements. Compare performance metrics such as nonlinearity and drift against alternative converters if higher precision or lower power consumption is critical for the specific application environment.

Part Context

The LTC1967 belongs to Analog Devices' family of precision analog signal processing components. It complements other signal conditioning devices like comparators and amplifiers within the same portfolio. The CMS8 designation indicates a commercial temperature grade variant in a small outline package. This part serves as a specialized solution for converting AC waveforms to equivalent DC values in measurement systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with any potential alternatives by comparing electrical specifications, pin configurations, and thermal characteristics against the original LTC1967 datasheet requirements.