Analog Devices Inc. (ADI, Wilmington, MA) released its new AD8311 power controller, which is designed for GSM/GPRS cellular handsets. Housed in a 1 mm x 1.5 mm package, it delivers accuracy and temperature stability, while occupying a small amount of board space.
The AD8311 is a logarithmic power controller that provides precise control of radio frequency power amplifiers operating in the frequency range of 100 MHz to 2.5 GHz, and over a typical 45 dB dynamic range. The high sensitivity of the AD8311 allows measurement at low power levels, reducing the amount of power being coupled to the detector. The device also offers low power consumption of only 8.5 mA from a 2.7 V to 5.5 V supply. The small size, high accuracy, temperature stability over the range of –40 °C to +85 °C, and wide dynamic range make the AD8311 well suited for GSM/GPRS cellular handsets and other applications that require transmit power control.
The AD8311 is available now and is priced at $1.20 per unit in 10,000-piece quantities.
