+3 V/+5 V, Dual,
Serial Input 12-Bit DAC
AD7394
FEATURES
Micropower: 100 ОјA/DAC
0.1 ОјA typical power shutdown
Single-supply 2.7 V to 5.5 V operation
12-bit resolution
Serial interface with Schmitt trigger inputs FUNCTIONAL BLOCK DIAGRAM
VDD VREF OP AMP
A CS
EN DAC A
REGISTER CLK VOUTA DAC A D
P R SDI
(DATA) Automotive output span voltage
Portable communications
Digitally controlled calibration
PC peripherals SHIFT
REGISTER AD7394 12 D
DAC B
REGISTER OP AMP
B LDA DAC B LDB VOUTB P R DGND MSB RS AGND 08528-001 APPLICATIONS SHDN Figure 1. GENERAL DESCRIPTION A doubled-buffered serial data interface offers high speed,
microcontroller compatible inputs using the serial-data-in …
