ADI's XFCB-3TM SiGe process technology enables AD8318 to deliver RF power measurement from 1 MHz to 8 GHz and offer industry's best speed, accuracy, and temperature stability.
May 12, 2004 - Analog Devices unveiled a major breakthrough in radio frequency (RF) detection for wireless infrastructure equipment. Analog Devices has developed the industry's first logarithmic RF detector to accurately measure the power of radio signals from 1 MHz to 8 GHz, exceeding the previous maximum of 2.5 GHz. Accurate RF power measurement can reduce the size and cost of expensive RF power transmitters and is a key to easing wireless network management challenges. Maintaining the detector dynamic range up to 8 GHz has never before been possible.
The AD8318, a monolithic semiconductor-based detector, is superior to traditional alternatives because it is more cost-effective than module solutions and more accurate than discrete diode-based detectors. Its unique combination of accuracy and broad dynamic range allows the device to be used in many types of wireless communications infrastructure equipment, including GSM, CDMA, and W-CDMA cellular base stations (which operate up to 2 GHz), W-LAN 802.11 applications (which require 5 GHz), and point-to-point fixed wireless systems (which operate up to 30 GHz).
Increased Accuracy and Improved Temperature Stability
The AD8318 provides over 55-dB dynamic range with better than +/-1-dB accuracy up to 5.8 GHz. At 8 GHz, the AD8318 provides over 58-dB dynamic range with better than +/-3-dB accuracy. The temperature drift can be fine tuned to the band of interest, yielding better than +/-0.5-dB stability from -40 to +85 degrees C.
Pricing and Availability
The AD8318 is sampling now, and production quantities will be available July 2004. The device is offered in a compact 4 mm x 4 mm, 16-pin LFCSP (lead-frame chip-scale package), and is fully specified over the -40 to +85 degrees C operating temperature range. The AD8318 is priced at $5.99 per unit in 1,000-piece quantities.
