The AD15700 is a precision component to interface analog input and output channels to a digital processor. It is ideal for arealimited applications that require maximum circuit density. The AD15700 contains the functionality of a 16-bit, 1 MSPS charge redistribution SAR analog-to-digital converter that operates from a 5 V power supply. The high speed 16-bit sampling ADC incorporates a resistor input scaler that allows various input ranges, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports. The AD15700 also contains a 14-bit, serial input, voltage output DAC that operates from a 5 V supply and has a settling time of 1 ms. Two single- or split-supply voltage feedback amplifiers with rail-to-rail input and output characteristics featuring 80 MHz of small signal bandwidth and 10 mV/C offset drift provide ADC and DAC buffering capability. The center tapped 3 kW resistors are precision resistor networks with 2 ppm/C ratio tracking that provide low gain drift when used for scaling.