LTC1967 Datasheet | Linear Technology

Features Precision Extended Bandwidth, RMS-to-DC Converter DESCRIPTIO s High Linearity: 0.02% Linearity Allows Simple System Calibration s Wide Input Bandwidth: Bandwidth to 0.1% Additional Gain Error: 40k Hz Bandwidth Independent of Input Voltage Amplitude s No-Hassle Simplicity: True RMS-DC Conversion with Only One External Capacitor Delta Sigma Conversion Technology s Low Supply Current: 330µA Typ s Ultralow Shutdown Current: 0.1µA s Flexible Inputs: Differential or Single Ended Rail-to-Rail mon Mode Voltage Range Up to 1VPEAK Differential Voltage s Flexible Output: Rail-to-Rail Output Separate Output Reference Pin Allows Level Shifting s Small Size: Space Saving 8-Pin MSOP Package U APPLICATIO S The LTC®1967 is a true RMS-to-DC converter that uses an innovative delta-sigma putational technique. The benefits of the LTC1967 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 LTC1967 operates with single-ended or differential input signals (for EMI/RFI rejection) and supports crest factors up to 4. mon mode input range is rail-to-rail. Differential input range is 1VPEAK, and offers unprecedented linearity. The LTC1967 allows hassle-free system calibration at any input voltage. The LTC1967 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 LTC1967 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 s True RMS Digital Multimeters and Panel Meters s True RMS AC + DC Measurements TYPICAL APPLICATIO Single Supply RMS-to-DC Converter 4.5V TO 5.5V DIFFERENTIAL...