The AD637 is a complete, high accuracy, monolithic rms-to-dc converter that computes the true rms value of any complex waveform. It offers performance that is unprecedented
The AD637 is a complete, high accuracy monolithic RMS-to-DC converter that computes the true RMS value of any complex waveform. It offers performance comparable to discrete techniques in accuracy, bandwidth, and dynamic range. The device includes an auxiliary dB output for logarithmic measurements and features a chip select connection to reduce supply current during non-use periods.
| Total Error (Internal Trim) | 0.02% of reading |
|---|---|
| Nonlinearity (2 V Full Scale) | 0.02% of FSR |
| Bandwidth (Vin = 2V) | 8 MHz |
| Quiescent Current | 2.2 mA |
| Standby Current (Chip Select Low) | 350 pA |
The maximum nonlinearity is 0.02% of Full Scale Range (FSR) at 2 V full scale.
Yes, it has an auxiliary dB output available to users for direct logarithmic measurement.
The device is available for commercial (0°C to 70°C), industrial (-40°C to +85°C), and military (-55°C to +125°C) applications.