FEATURES FUNCTIONAL BLOCK DIAGRAM Guaranteed monotonic over temperature
Excellent matching between DACs
Unipolar or bipolar operation
Buffered voltage outputs
High speed serial digital interface
Reset-to-zero scale or midscale
Wide supply range, +5 V only to ±15 V
Low power consumption (35 mW maximum)
Available in 16-Lead PDIP, SOIC, and CERDIP packages 1 SDI 10
REG
A DAC A 7 VOUTA REG
B DAC B 6 VOUTB REG
C DAC C 3 VOUTC REG
D DAC D 2 VOUTD 12
CS 12
CLK 11 SHIFT
REGISTER 4 Software controlled calibration
Servo controls
Process control and automation
ATE VDD 5 DAC8420 NC 13 APPLICATIONS VREFHI DECODE LD 14 2 9 GND 16 15 CLSEL CLR 4 8 VREFLO VSS 00275-001 Data Sheet Quad 12-Bit Serial Voltage Output DAC
DAC8420 Figure 1. GENERAL DESCRIPTION
The DAC8420 is a quad, 12-bit voltage-output DAC with serial
digital interface in a 16-lead package. Utilizing BiCMOS technology, this monolithic device features unusually high circuit …