DESCRIPTION

· The LTC1966 is a precision micropower ΔΣ RMS-to-DC converter utilizing a patented DS computational technique.

· It offers high accuracy, low power consumption, and flexibility in both single and dual supply configurations.

· The device supports differential or single-ended input signals with a rail-to-rail common mode voltage range.

· It is packaged in an 8-pin MSOP, ideal for portable applications.

FEATURES

· High accuracy: 0.1% gain accuracy from 50Hz to 1kHz.

· High linearity: 0.02% linearity for easy system calibration.

· Low supply current: 155µA typical, 170µA maximum.

· Ultralow shutdown current: 0.1µA.

· Constant bandwidth: 800kHz –3dB, independent of input voltage.

· Flexible supplies: 2.7V to 5.5V single supply, up to ±5.5V dual supply.

· Flexible inputs: Differential or single-ended, rail-to-rail common mode voltage range up to 1V peak differential voltage.

· Flexible output: Rail-to-rail output with separate output reference pin for level shifting.

· Wide temperature range: –55°C to 125°C.

APPLICATIONS

· True RMS digital multimeters and panel meters.

· True RMS AC + DC measurements.

· Single supply RMS-to-DC converter applications.