RMS to DC Converters

RMS is a fundamental measurement of an ac signal. RMS to DC converters manufactured by ADI are used in a wide variety of applications where precision, low power measurement of ac signal is the prime objective. An ADI RMS-to-DC converter offers 'real time' measurements, i.e. there are no latency issues such as those that limit the frequency response of other technologies - the dc output is simply the equivalent of the RMS input, over a wide range of input frequencies, and for complex waveforms not limited to sine-waves. ADI offers a wide range of RMS-DC converters optimized for the most demanding performance, power and cost applications satisfying True RMS needs.

A brief introduction on the technology and its applications, please refer to the on line multimedia module Introduction to Analog RMS-to-DC Technology: Converters and Applications.

For more detailed design and applications information, please see our RMS to DC Converter Application Guide.

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RMS-to-DC Converters

Part#-3dB BandwidthMax Vin (V-rms)Error (%@ CF = 3)Supply CurrentV Span (min)V Span (max)Temp Range (°C)US Price 1000-4999
AD8436 800 kHz 3 V rms 0.5 300 µA 4.8 36 -40 to 125 $2.95
AD737 170 kHz 1 V rms 0.7 0.16 mA 6 33 -40 to 85 $3.42
AD736 170 kHz 1 V rms 0.7 0.2 mA 6 33 -40 to 85 $4.29
AD637 600 kHz 10.6 V rms 0.1 3 mA 6 36 -55 to 125 $11.23
AD636 900 kHz 8.5 V rms -0.2 1 mA 5 33 0 to 70 $11.82
AD536A 450 kHz 7 V rms -0.1 2 mA 6 36 -55 to 125 $9.09
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