Product Summary
The AD636JHZ is a low power monolithic IC that performs true rms-to-dc conversion on low level signals. It offers performance that is comparable or superior to that of hybrid and modular converters costing much more. The AD636JHZ is specified for a signal range of 0 mV to 200 mV rms. Crest factors up to 6 can be accommodated with less than 0.5% additional error, allowing accurate measurement of complex input waveforms. The low power supply current requirement of the AD636JHZ, typically 800 μA, is ideal for battery-powered portable instruments. It operates from a wide range of dual and single power supplies, from ±2.5 V to ±16.5 V or from +5 V to +24 V. The input and output terminals of the AD636JHZ are fully protected; the input signal can exceed the power supply with no damage to the device (allowing the presence of input signals in the absence of supply voltage), and the output buffer amplifier is short-circuit protected.
Parametrics
AD636JHZ absolute maximum ratings: (1)Dual Supply: ±16.5 V; (2)Single Supply: +24 V; (3)Internal Power Dissipation2: 500 mW; (4)Maximum Input Voltage: ±12 V Peak; (5)Storage Temperature Range N, R: –55℃ to +150℃; (6)Operating Temperature Range: 0℃ to +70℃; (7)Lead Temperature Range (Soldering 60 sec): +300℃; (8)ESD Rating: 1000 V.
Features
AD636JHZ features: (1)True RMS-to-DC Conversion; (2)200 mV Full Scale; (3)Laser-Trimmed to High Accuracy: 1.0% Max Error (AD636J); (4)Wide Response Capability: Computes RMS of AC and DC Signals, 1 MHz –3 dB Bandwidth: V RMS >100 mV, Signal Crest Factor of 6 for 0.5% Error; (5)dB Output with 50 dB Range; (6)Low Power: 800 mA Quiescent Current; (7)Single or Dual Supply Operation; (8)Monolithic Integrated Circuit; (9)Low Cost.
Diagrams
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