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9kHz to 7GHz RF Power Detector In Tiny Form Factor

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Analog Devices has unveiled a 9 KHz – 7 GHz directional bridge and dual RMS RF power detector that can simultaneously measure forward and reverse RMS power levels in a signal path along with return loss. Applications include broadband in-Line power and return loss measurement in wireless transmitters, signal generators, network analyzers, and wireless communications testers

The ADL5920 detector represents a change to conventional approaches by integrating a directional bridge-based coupler that results in a high level of integration and bandwidth.

The device is ideal for space-critical applications as it integrates the coupling or sensing function with the detection function and provides an output that can drive a precision analog-to-digital converter (ADC) directly, notes the firm.

For wideband operation or for frequency variants, the detector eliminates the need to choose a different directional coupler for each frequency.

The maximum input signal on each of the RF ports is +30 dBm with handling capability for open and shorted loads.

The chip requires a 5V supply and draws 150 mA. It can be powered down via a PWDN pin.

The ADL5920 is supplied in a 32-lead, 5 mm x 5 mm LFCSP, for the operating temperature range of –40°C to +85°C.

Samples of the ADL5920 device are available now with full availability planned for December 2017. Price per 1,000 pieces is $14.50.

View the ADL5920 product page, download data-sheet, order samples and evaluation boards: http://www.analog.com/ADL5920. For further details, click here.

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