AD5678

www.DataSheet4U.com 4 × 12-Bit and 4 × 16-Bit Octal DAC with On-Chip Reference in 14-Lead TSSOP AD5678 FEATURES Low power octal DAC with Four 16-bit DACs Four 12-bit DACs 14-lead/16-lead TSSOP On-chip 1.25 V/2.5 V, 5 ppm/°C reference Power down to 400 nA @ 5 V, 200 nA @ 3 V 2.7 V to 5.5 V power supply Guaranteed monotonic by design Power-on reset to zero scale 3 power-down functions Hardware LDAC and LDAC override function CLR function to programmable code Rail-to-rail operation AD5678 LDAC INPUT REGISTER INPUT REGISTER SCLK INTERFACE LOGIC INPUT REGISTER INPUT REGISTER INPUT REGISTER INPUT REGISTER INPUT REGISTER INPUT REGISTER POWER-ON RESET LDAC1 CLR1 1RU-16 FUNCTIONAL BLOCK DIAGRAM VDD VREFIN/VREFOUT 1.25V/2.5V REF DAC REGISTER DAC REGISTER DAC REGISTER DAC REGISTER DAC REGISTER DAC REGISTER DAC REGISTER DAC REGISTER STRING DAC A STRING DAC B STRING DAC C STRING DAC D STRING DAC E STRING DAC F STRING DAC G STRING DAC H BUFFER VOUTA BUFFER VOUTB BUFFER VOUTC SYNC BUFFER VOUTD DIN BUFFER VOUTE BUFFER VOUTF BUFFER VOUTG BUFFER VOUTH POWER-DOWN LOGIC GND 05299-001 APPLICATIONS Process control Data acquisition systems Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage current sources Programmable attenuators PACKAGE ONLY Figure 1. GENERAL DESCRIPTION The AD5678 is a low power, octal, buffered voltage-output DAC with four 12-bit DACs and four 16-bit DACs in a single package. All devices operate from a single 2.7 V t...