Abstract

Systems with RF transmissions often use power amplifiers (PA) to increase the power and range of the signals. PA require constant monitoring and precise gate voltages to control the power going through the PA. To achieve this, discrete designs that include DAC, ADC, and gate switches are often implemented, which is inefficient, costly, and board space intensive. The AMC7908 is highly integrated power amplifier biasing controller that features eight 13-bit DAC outputs, a 16-bit ADC input, and dedicated output switching.