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LTC1967 - 精准扩展带宽、RMS 至 DC 转换器

The LTC®1967 is a true RMS-to-DC converter that uses an innovative delta-sigma computational technique. The benefits of the LTC1967 proprietary architecture when compared 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. Common 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.

Protected under U.S. Patent Numbers 6,359,576, 6,362,677 and 6,516,291.

特点 High Linearity: 0.02% Linearity Allows Simple System Calibration Wide Input Bandwidth: Bandwidth to 0.1% Additional Gain Error: 40kHzBandwidth Independent of Input Voltage Amplitude No-Hassle Simplicity:True RMS-DC Conversion with Only One External CapacitorDelta Sigma Conversion Technology Low Supply Current:330µA Typ Ultralow Shutdown Current:0.1µA Flexible Inputs:Differential or Single EndedRail-to-Rail Common Mode Voltage RangeUp to 1VPEAK Differential Voltage Flexible Output:Rail-to-Rail OutputSeparate Output Reference Pin Allows Level Shifting Small Size:Space Saving 8-Pin MSOP Package 典型应用

应用 True RMS Digital Multimeters and Panel Meters True RMS AC + DC Measurements 封装信息

演示电路板