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- Brand
- Analog Devices
- Model
- CN-0187
- Category
- Other Electronics
- Industry
- Electronics
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- 2
- Languages
- EN
- Last added
- 2026-10-23
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Analog Devices CN-0187 Circuit for RF Power Measurement Application Note
The document details a tested circuit design (CN-0187) intended for high-speed, low-power RF power measurement applications. It measures peak and root-mean-square (RMS) power over a frequency range of 450 MHz to 6 GHz with a dynamic range of approximately 45 dB. The results are converted into differential signals to eliminate noise and digitized by a 12-bit SAR ADC.
The circuit utilizes specific components including the ADL5502 peak factor detector, ADA4891-4 amplifier, AD7266 ADC, and ADP121 regulator. The note provides descriptions of these components' functions within the system, such as the ADL5502's ability to measure true RMS power and capture short peaks, and explains the calibration process required for accurate measurements.
Analog Devices CN-0187 specifications
| Frequency Range | 450 MHz to 6 GHz |
|---|---|
| Measurement Range | approximately 45 dB |
| Supply Voltage | Single 3.3 V |
| Total Current Consumption | 3 mA @ 3 V |
| Amplifier Current Consumption | 4.4 mA/amplifier at 3 V |
| ADC Sampling Rate | up to 2 MSPS |
Source: Analog Devices CN-0187 Crest Factor, Peak, and RMS RF Power Measurement Circuit Note
All Analog Devices CN-0187 documents by type
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the frequency range for which this circuit measures RF power?
The circuit measures peak and rms power for any RF frequency from 450 MHz to 6 GHz.
From: Analog Devices CN-0187 Circuit for RF Power Measurement Application Note
What is the dynamic range of the measurement system?
The circuit provides a dynamic range of approximately 45 dB.
From: Analog Devices CN-0187 Circuit for RF Power Measurement Application Note
What is the frequency range of the CN-0187 circuit?
The circuit measures RF signals from 450 MHz to 6 GHz.
From: Analog Devices CN-0187 Crest Factor, Peak, and RMS RF Power Measurement Circuit Note
What is the power measurement range?
The circuit covers a measurement range of approximately 45 dB.
From: Analog Devices CN-0187 Crest Factor, Peak, and RMS RF Power Measurement Circuit Note