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4,500 pcs
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4500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The AD637AR from Analog Devices is a complete, high-accuracy RMS-to-DC converter designed to compute the true RMS value of any complex waveform. It offers unprecedented performance for integrated circuit converters, comparable to discrete and modular techniques in accuracy, bandwidth, and dynamic range.
This IC computes the true root mean square, mean square, or absolute value of AC or AC plus DC input waveforms, providing an equivalent DC output voltage. The true RMS value is crucial for power-related signal analysis. The AD637AR boasts superior crest factor compensation, allowing measurements of signals with crest factors up to 10 with less than 1% additional error.
With a wide bandwidth of 8 MHz at 2 V rms input and 600 kHz at 100 mV rms input, the AD637AR is suitable for a variety of signal measurement applications. It also features a direct dB output with a 60 dB range. The device is available in a 16-SOIC package and is surface-mountable.
A chip select/power-down feature allows for reduced quiescent current from 2.2 mA to 350 µA when the RMS function is not in use, making it suitable for low-power applications. The input circuitry is protected from overload voltages.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum nonlinearity is 0.02% for a 0 V to 2 V rms input.
The bandwidth is 8 MHz at 2 V rms input.
The bandwidth is 600 kHz at 100 mV rms input.
It can measure signals with crest factors up to 10 with less than 1% additional error.
The device offers a dB output range of 60 dB.
The quiescent current reduces to 350 µA during power-down.
The operating voltage range is ±3V to ±18V.
The AD637AR is available in a 16-SOIC package.