AD5663

www.DataSheet4U.com 2.7 V to 5.5 V, 250 μA, Rail-to-Rail Output, Dual 16-Bit nanoDAC® AD5663 FEATURES Low power, dual 16-bit nanoDAC Relative accuracy: ±12 LSBs maximum Guaranteed monotonic by design 10-lead MSOP and 3 mm × 3 mm LFCSP_WD 2.7 V to 5.5 V power supply Per channel power-down Power-on reset to zero scale or midscale Hardware LDAC and CLR functions Serial interface; up to 50 MHz FUNCTIONAL BLOCK DIAGRAM VDD LDAC INPUT REGISTER INTERFACE LOGIC INPUT REGISTER DAC REGISTER STRING DAC B BUFFER VOUTB DAC REGISTER STRING DAC A VREF SCLK SYNC DIN BUFFER VOUTA AD5663 POWER-ON RESET POWER-DOWN LOGIC 05855-001 LDAC CLR GND APPLICATIONS Process control Data acquisition systems Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators Figure 1. Table 1. Related Devices Part No. AD5623R/AD5643R/AD5663R Description 2.7 V to 5.5 V, dual 12-/14-/16-bit DACs with internal reference GENERAL DESCRIPTION The AD5663, a member of the nanoDAC family, is a low power, dual, 16-bit buffered voltage-out DAC that operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. The AD5663 requires an external reference voltage to set the output range of the DAC. The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale (AD5663-1) and remains there until a valid write takes place. The part contains a power-down feature that reduces the curr...