LTC1968 Datasheet | Linear Technology

Precision Wide Bandwidth, RMS-to-DC Converter Features - High Linearity: 0.02% Linearity Allows Simple System Calibration - Wide Input Bandwidth: Bandwidth to 1% Additional Gain Error: 500k Hz Bandwidth to 0.1% Additional Gain Error: 150k Hz 3d B Bandwidth Independent of Input Voltage Amplitude - No-Hassle Simplicity: True RMS-DC Conversion with Only One External Capacitor Delta Sigma Conversion Technology - Ultralow Shutdown Current: 0.1µA - Flexible Inputs: Differential or Single Ended Rail-to-Rail mon Mode Voltage Range Up to 1VPEAK Differential Voltage - Flexible Output: Rail-to-Rail Output Separate Output Reference Pin Allows Level Shifting - Small Size: Space Saving 8-Pin MSOP Package U APPLICATIO S - True RMS Digital Multimeters and Panel Meters - True RMS AC + DC Measurements DESCRIPTIO The LTC®1968 is a true RMS-to-DC converter that uses an innovative delta-sigma putational technique. The benefits of the LTC1968 proprietary architecture, when pared to conventional log-antilog RMS-to-DC converters, are higher linearity and accuracy, bandwidth independent of amplitude and improved temperature behavior. The LTC1968 operates with single-ended or differential input signals and accurately supports crest factors up to 4. mon mode input range is rail-to-rail. Differential input range is 1VPEAK, and offers unprecedented linearity. The LTC1968 allows hassle-free system calibration at any input voltage. The LTC1968 has a rail-to-rail output with a separate output reference pin providing flexible level shifting; it operates on a single power supply from 4.5V to 5.5V. A low power shutdown mode reduces supply current to 0.1µA. The LTC1968 is packaged in the space-saving MSOP package, which is ideal for portable applications. , LTC and LT are registered trademarks of Linear Technology Corporation. Protected under U.S. Patent Numbers 6,359,576, 6,362,677 and 6,516,291 TYPICAL APPLICATIO Single Supply RMS-to-DC Converter 4.5V TO 5.5V DIFFERENTIAL...