BRUSSELS — The AD8363 TruPwr™ root-mean-square (RMS) power detector from Analog Devices precisely measures signals with highly varying crest factors up to 6 GHz used in WiMAX/802.16, WCDMA, TD-SCDMA, and LTE applications. The device supports the communications industry's focus on increasing efficiency and improving ease-of-use to reduce the overall system size and cost.
The AD8363 targets high performance RF applications including power amplifier (PA) linearization/control loops, transmitter power control, transmitter signal strength indication (TSSI) and RF instrumentation. Accurate control of PA output power significantly reduces cost and improves efficiency.
The AD8363 is ideally suited for next-generation RF applications using complex signals with highly varying peak-to-average ratios. The signal is sent directly into the single-ended input eliminating the need for an external balun, unlike power detectors from previous generations. The device achieves +0.5-dB accuracy over the entire 50-dB + 1-dB dynamic range. The output is linear-in-dB, and scaled to 50 mV/dB, but other slopes can be arranged.
Fully specified and stable over the entire frequency range of 50-Hz to 6-GHz, the AD8363 has a operating temperature range of -40 to 125 degrees Celsius and supply voltage range of 4.5 to 5.5 V. With these specifications the most stringent power measurement applications can be accurately realized.
Visit www.analog.com/pr/AD8363 for further information and a data sheet.
