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Low Cost, Low Power, True RMS-to-DC Converter
Analog Devices Inc.
Description
The AD737* is a low power, precision, monolithic true rms-to-dc converter. It is laser trimmed to provide a maximum error of ±0.2 mV ± 0.3% of reading with sine wave inputs. Furthermore, it...
Features
Computes True rms value Average rectified value Absolute value Provides 200 mV full-scale input range (larger inputs with input attenuator) Direct interfacing with 3? digit CMOS ADCs High input impedance: 1012 ? Low input bias current: 25 pA maximum High accuracy: ±0.2 mV ± 0.3% of reading RMS conversion with signal crest factors up to 5 Wide power supply range: ±2.5 V to ±16.5 V Low power: 160 ?A maximum supply current No external trims needed for specified accuracy A general-purpose, buffered voltage output version also available (AD736)
Related Datasheets
| Part Number | Description | Category |
| • AD536A | Integrated Circuit True RMS-to-DC Converter | Power Supplies, Batteries and Accessories |
| • AD636 | Low Level, True RMS-to-DC Converter | Power Supplies, Batteries and Accessories |
| • AD637 | High Precision, Wideband RMS-to-DC Converter | Power Supplies, Batteries and Accessories |
| • AD736 | Low Cost, Low Power, True RMS-to-DC Converter | Power Supplies, Batteries and Accessories |
| • AD737 | Low Cost, Low Power, True RMS-to-DC Converter | Power Supplies, Batteries and Accessories |
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