AD7564

a LC2MOS +3.3 V/+5 V, Low Power, Quad 12-Bit DAC FEATURES Four 12-Bit DACs in One Package 4-Quadrant Multiplication Separate References Single Supply Operation Guaranteed Specifications with +3.3 V/+5 V Supply Low Power Versatile Serial Interface Simultaneous Update Capability Reset Function 28-Pin SOIC, SSOP and DIP Packages APPLICATIONS Process Control Portable Instrumentation General Purpose Test Equipment FSIN CLKIN SDIN AD7564 FUNCTIONAL BLOCK DIAGRAM NC AGND VDD DGND VREFD VREFC VREFB VREFA R FB A INPUT DAC A LATCH A 12 LATCH 12 DAC A INPUT LATCH B 12 DAC B LATCH 12 DAC B INPUT LATCH C 12 DAC C LATCH 12 DAC C INPUT DAC D LATCH D 12 LATCH 12 CONTROL LOGIC + INPUT SHIFT REGISTER 12 DAC D AD7564 IOUT1 A IOUT2 A RFBB IOUT1 B IOUT2 B RFBC IOUT1 C IOUT2 C R FBD IOUT1 D IOUT2 D CLR LDAC A0 A1 SDOUT GENERAL DESCRIPTION The AD7564 contains four 12-bit DACs in one monolithic device. The DACs are standard current output with separate VREF, IOUT1, IOUT2 and RFB te...