The LTC1966IMS8#PBF is a true RMS-to-DC Converter that utilizes an innovative patented ?Σ computational technique. The internal delta sigma circuitry of the converter makes it simpler to use, more accurate, lower power and dramatically more flexible than conventional log antilog RMS-to-DC converter. This accepts 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 1V peak and offers unprecedented linearity. Unlike previously available RMS-to-DC converter, the superior linearity of this allows hassle free system calibration at any input voltage. This also has a rail-to-rail output with a separate output reference pin providing flexible level shifting. It operates on a single power supply from 2.7 to 5.5V or dual supplies up to ±5.5V. A low power shutdown mode reduces supply current to 0.5μA.
Simple to use, requires one capacitor
True RMS DC conversion using ?Σ technology
High accuracy
High linearity
Low supply current
0.1μA Ultralow shutdown current
Differential or single-ended and rail-to-rail common mode voltage range flexible input
(EN)
