INDUSTRY'S SMALLEST QUAD BAND, 2.5GHz, 45dB RF POWER AMPLIFIER DETECTOR SAVES 80% BOARD SPACE
SUNNYVALE, CA-November 7, 2002-Maxim Integrated Products
(NASDAQ: MXIM) introduces the MAX4003 Power Amplifier (PA) detector for GSM/GPRS, CDMA, or TDMA cellular handsets. The input power range extends from -45dBm to 0dBm and is available in an 8-bump chip scale package (UCSP™) making this RF PA detector the smallest in the industry.
This device operates in the 100MHz to 2.5GHz frequency range covering the quad band spectrum of 800MHz/900MHz as well as 1.8GHz/1.9GHz signals. The MAX4003 logarithmic amplifier provides a wide measurement range and a superior accuracy for PA detection applications compared with diode-based detector methods.
The UCSP, measuring 1.6mm x 1.6mm, saves 80% board space over the competition. The product is also offered in the 8-pin µMAX package for applications without board-space restrictions.
The MAX4003 output stage delivers a logarithmic slope of 25.5mV/dB over a 45dB input range. This provides a wide dynamic range for the analog-to-digital converter within the baseband chipset, and supports the biasing requirements of a wide array of power amplifiers and PA modules. The MAX4003 has a low-power shutdown mode that reduces power consumption to just 13µA.
Prices for the MAX4003 start at $0.79 (50,000-up, FOB USA).
UCSP is a registered trademark of Maxim Integrated Products, Inc.
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