LTC1966IMS8#PBF

LTC1966 is a true RMS-to-DC converter that utilizes an innovative patented ∆Σ 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