Date: 15/06/2010

RMS Power detector to measure frequencies in the range of 450 MHz to 6000 MHz

Analog Devices has introduced the ADL5505 to measure RMS power received by 3G and 4G mobile handsets. This power detector measure the RMS (root mean square) power of complex RF signals. It is suggested for power measurements of both simple and complex waveforms and is particularly useful for measuring high crest factor (high peak-to-RMS ratio) signals, such as W-CDMA, CDMA2000, WiMAX, WLAN and LTE waveforms. It is also effective for optimizing the performance of linear power amplifiers. It has a small footprint of .8 mm x .8 mm. ADI says the ADL5505 power detector eliminates the need for look-up tables and correction factors for large and changing crest factors, significantly increasing efficiency, battery life and signal quality while reducing bill of materials cost.

Other ADL5505 Key Features and Benefits:

--Good temperature stability across a 30 dB range and near 0 dB measurement error across temperature over the top portion of the dynamic range.
-- Operates single supply between 2.5 V and 3.3 V, the detector draws less than 1.8 mA.
--RMS output is a linear-responding dc voltage with a conversion gain of 1.86 V/V RMS at 900 MHz.
--On-chip modulation filter provides sufficient averaging for most waveforms.

Package: 0.8 mm x 0.8 mm WLCSP

Price: It is priced at US$2.50 per unit for 1,000-unit quantities.

Availability: Now

For more information visit: http://www.analog.com/RF