3 V/5 V, Rail-to-Rail
Quad, 8-Bit DAC
AD7304/AD7305
FUNCTIONAL BLOCK DIAGRAMS FEATURES VREFB VREFA VDD
PWR-ON
RESET INPUT 8
REG A DAC A 8
REG DAC A VOUTA INPUT 8
REG B DAC B 8
REG DAC B VOUTB INPUT 8
REG C DAC C 8
REG DAC C VOUTC INPUT 8
REG D DAC D 8
REG DAC D VOUTD CS SDI/SHDN SERIAL
REG CLK APPLICATIONS AD7304 Automotive output span voltage
Instrumentation, digitally controlled calibration
Pin-compatible AD7226 replacement when VDD < 5.5 V VSS CLR LDAC VREFC VREFD Figure 1.
VREF VDD GENERAL DESCRIPTION
The AD7304/AD73051 are quad, 8-bit DACs that operate from
a single +3 V to +5 V supply, or В±5 V supplies. The AD7304 has
a serial interface, while the AD7305 has a parallel interface.
Internal precision buffers swing rail-to-rail. The reference input
range includes both supply rails, allowing for positive or negative …