The RDA012M4 is a 48:12 bit multiplexer and digital to analog converter (DAC) with an update rate over 1GS/s. The input multiplexer can be select to operate in 1:1, 2:1 and 4:1 modes. The integrated DAC utilizes a segmented current source to reduce the glitch energy and to achieve high linearity performance. For best dynamic performance, the DAC outputs are internally terminated with 50Ω resistance, and outputs a nominal full scale current of 12mA when terminated with external 50Ω resistors. For a convenient interface with most CMOS ICs, the digital data inputs are low voltage NMOS compatible.
