Find RF detectors that accurately detect and measure RF and IF signals in wireless systems. Recognized as the pioneer and leader in RF detectors, Analog Devices offers a broad portfolio of high performance logarithmic amplifiers and TruPwr™ RMS detectors. ADI's logarithmic amplifiers measure signals up to 100 dB dynamic range, from dc to 10 GHz, and accuracies of ±0.2 dB and are well-suited for both RSSI and transmit power level detection. The TruPwr RMS detectors address the challenge of measuring complex waveforms found in spread spectrum CDMA / W-CDMA and higher order QAM modulation systems and provide an accurately scaled DC voltage, which is RMS equivalent of the input waveform.
Tutorials & Webcasts
Solutions for Fitting High Performance RF Signal Chains into Small Spaces
This webinar will present the current state of integration of RF IC technology, with a focus on the challenges that non-handset-based wireless equipment designers face as they strive for more functionality in smaller spaces, sometimes with the added headache of having to implement broadband transceivers that can be reused at multiple frequencies.
Basics on RF Detectors
FAQ: Logarithmic Amplifiers
RF Detectors Technical Articles
Noise Figure and Logarithmic Amplifiers by Barrie Gilbert
Brochures & Bulletins
RF/IF Selection Guide
RF Detectors Data Sheets
AD8313 Output Voltage vs Input Amplitude
This calculator plots the response of the AD8313 in log (RSSI) mode and controller mode. By selecting the frequency range and correction factor, the slope and intercept are determined. This tool also calculates a simple LC match for the AD8313.
UG-312: ADL5511-EVALZ: Evaluation Board (pdf, 140 kB)
Circuits from the Lab
CN0187: Crest Factor, Peak, and RMS RF Power Measurement Circuit Optimized for High Speed, Low Power, and Single 3.3 V Supply
CN0150: Software Calibrated, 1 MHz to 8 GHz, 60 dB RF Power Measurement System Using the AD8318 Logarithmic Amplifier
CN0178: Software Calibrated, 50 MHz to 9 GHz, RF Power Measurement System
CN0050: Stable, Closed Loop Automatic Power Control for RF Applications
CN0082: Creating A Constant Envelope Signal Using the ADL5331 VGA and AD8319 Logarithmic Amplifier
CN0072: Extending the Dynamic Range of the ADL5513 Logarithmic Detector Using the AD8368 Variable Gain Amplifier
RF Detector Application Notes