ADA4932-x Low Power Differential ADC Driver

ADI's ADA4932-x is the next generation AD8132 with higher performance and lower noise and power consumption. It is an ideal choice for driving high performance ADCs as a single-ended-to-differential or differential-to-differential amplifier. The output common-mode voltage is user adjustable by means of an internal common-mode feedback loop, allowing the ADA4932-x output to match the input of the ADC. The internal feedback loop also provides exceptional output balance as well as suppression of even-order harmonic distortion products.

With the ADA4932-x, differential gain configurations are easily realized with a simple external four-resistor feedback network that determines the closed-loop gain of the amplifier.

The ADA4932-x is fabricated using ADI's proprietary silicon-germanium (SiGe) complementary bipolar process, enabling it to achieve low levels of distortion and noise at low power consumption. The low offset and excellent dynamic performance of the ADA4932-x make it well suited for a wide variety of data acquisition and signal processing applications.

The ADA4932-x is available in a Pb-free, 3 mm x 3 mm 16-lead LFCSP (ADA4932-1, single) or a Pb-free, 4 mm x 4 mm 24-lead LFCSP (ADA4932-2, dual). The pinout has been optimized to facilitate PCB layout and minimize distortion. The ADA4932-1 and the ADA4932-2 are specified to operate over a -40°C to +105°C temperature range; both operate on supplies between +3 V and ±5 V.