AD8436 is a low-cost, low-power true RMS-to-DC converter that provides the true RMS or average rectified value of an ac waveform. The converter has a fast settling time and a wide dynamic input range.
The AD8436 is a translinear precision, low-power true RMS-to-DC converter designed to compute the precise DC equivalent of the RMS value of AC waveforms. It is suitable for complex patterns such as those generated by switch-mode power supplies and triacs. The device features a wide dynamic input range from 100 pV RMS to 3 V RMS and delivers true RMS results at a lower cost than digital or peak-averaging solutions.
| Accuracy | +10 pV + 0.5% of reading |
|---|---|
| Full-scale input range | 100 pV rms to 3 Vrms |
| 3 dB Bandwidth | 1 MHz |
| Supply Current (No input) | 325 pA typical |
| Operating Temperature Range (A grade) | -40°C to +125°C |
The device supports a full-scale input range from 100 pV rms to 3 Vrms.
The converter operates from dual supplies of +2.4 V to +18 V or single supplies of 4.8 V to 36 V.
The device consumes 300 pA typical at +2.4V with no input.