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10,000 pcs
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10000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The AD637JDZ 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 performance comparable to discrete and modular techniques in accuracy, bandwidth, and dynamic range.
Key features include a maximum nonlinearity of 0.02% for inputs from 0 V to 2 V rms and a wide bandwidth of 8 MHz at 2 V rms input, extending to 600 kHz at 100 mV rms input. The device supports superior crest factor compensation, allowing measurements of signals with crest factors up to 10 with less than 1% additional error. It also provides a direct dB output with a 60 dB range.
The AD637JDZ 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 directly related to signal power, making it more useful than an average rectified signal. The device operates with supply voltages from ±3V to ±18V and has a quiescent current of 2.2 mA, reducible to 350 µA with the chip select/power-down feature.
Packaged in a 14-CDIP, the AD637JDZ is designed for through-hole mounting. It requires only an external capacitor to set the averaging period, which also influences low-frequency accuracy, ripple level, and settling time. 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 AD637JDZ has a maximum nonlinearity of 0.02% for inputs from 0 V to 2 V rms.
The bandwidth is 8 MHz at 2 V rms input and 600 kHz at 100 mV rms input.
The AD637JDZ offers superior crest factor compensation, allowing measurements of signals with crest factors up to 10 with less than 1% additional error.
The typical quiescent current is 2.2 mA, which can be reduced to 350 µA when the chip select is active.
The AD637JDZ is available in a 14-CDIP package for through-hole mounting.
The AD637JDZ operates with supply voltages from ±3V to ±18V.