ANALOG DEVICES LTC1966IMS8#TRPBF RMS to DC Converter, 0.1 %, 800 kHz, -40 °C, 85 °C, MSOP, 8 Pins

LTC1966 is a true RMS-to-DC converter that utilizes an innovative patented ?? computational technique. The internal delta sigma circuitry of the device makes it simpler to use, more accurate, lower power and dramatically more flexible than conventional log antilog RMS-to-DC converters. This device accepts single-ended or differential input signals (for EMI/RFI rejection) and supports crest factors upto 4. Common mode input range is rail-to-rail. Differential input range is 1VPEAK, and offers unprecedented linearity. This device also has a rail-to-rail output with a separate output reference pin providing flexible level shifting. It is widely used in application such as true RMS digital multimeters and panel meters, true RMS AC + DC measurements etc.

• 0.1% gain accuracy from 50Hz to 1kHz
• 0.25% total error from 50Hz to 1kHz
• 0.02% linearity allows simple system calibration
• Positive supply current is 155µA typ
• Ultralow shutdown current is 0.1µA
• ±3dB frequency is 800kHz typ
• Single supply is 2.7V to 5.5V, dual supply is ±5.5V
• Input offset voltage is 0.02mV typ
• Operating temperature is �40°C to 85°C
• Packaging style is 8-lead plastic MSOP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party