General Description
The MX536A and MX636 are true RMS-to-DC convert ers. They feature low power and are designed to accept low-level input signals from 0 to 7VRMSfor the MX536A and 0 to 200mVRMSfor the MX636. Both devices accept complex input waveforms containing AC and DC components. They can be operated from either a single supply or dual supplies. Both devices draw less than 1mA of quiescent supply current, making them ideal for battery-powered applications.
Input and output offset, positive and negative waveform symmetry (DC reversal), and full-scale accuracy are laser trimmed, so that no external trims are required to achieve full rated accuracy.

Features
♦True RMS-to-DC Conversion
♦Computes RMS of AC and DC Signals
♦Wide Response:
  2MHz Bandwidth for VRMS> 1V (MX536A)
  1MHz Bandwidth for VRMS> 100mV (MX636)
♦Auxiliary dB Output: 60dB Range (MX536A)
                            50dB Range (MX636)
♦Single- or Dual-Supply Operation
♦Low Power: 1.2mA typ (MX536A)
                 800µA typ (MX636)

Applications
Digital Multimeters
Battery-Powered Instruments
Panel Meters
Process Control