Key facts
- Brand
- Analog Devices
- Model
- AD637
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-03
Start here
ANALOG DEVICES AD637: High Precision Wideband RMS-to-DC Converter Data Sheet (Rev K 2011-02-15-)
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.
Read onlineAnalog Devices AD637 specifications
| 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 |
Source: ANALOG DEVICES AD637: High Precision Wideband RMS-to-DC Converter Data Sheet (Rev K 2011-02-15-)
All Analog Devices AD637 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum nonlinearity error?
The maximum nonlinearity is 0.02% of Full Scale Range (FSR) at 2 V full scale.
From: ANALOG DEVICES AD637: High Precision Wideband RMS-to-DC Converter Data Sheet (Rev K 2011-02-15-)
Does the AD637 have a dB output?
Yes, it has an auxiliary dB output available to users for direct logarithmic measurement.
From: ANALOG DEVICES AD637: High Precision Wideband RMS-to-DC Converter Data Sheet (Rev K 2011-02-15-)
What is the maximum bandwidth of the AD637?
The AD637 provides up to 8 MHz bandwidth when driven with a 2 Vrms input signal.
How can the AD637’s power consumption be reduced?
By using the chip‑select pin, the quiescent current can be lowered from 2.2 mA to about 350 µA.