FEATURES
TWO DACs IN A 0.3" WIDE PACKAGE
SINGLE +5V SUPPLY
HIGH-SPEED DIGITAL INTERFACE:
Serial—DAC7800
8 + 4-Bit Parallel—DAC7801
12-Bit Parallel—DAC7802
MONOTONIC OVER TEMPERATURE
LOW CROSSTALK: –94dB min
FULLY SPECIFIED OVER –40OC TO +85OC

APPLICATIONS
PROCESS CONTROL OUTPUTS
ATE PIN ELECTRONICS LEVEL SETTING
PROGRAMMABLE FILTERS
PROGRAMMABLE GAIN CIRCUITS
AUTO-CALIBRATION CIRCUITS

DESCRIPTION
The DAC7800, DAC7801 and DAC7802 are members of a
new family of monolithic dual 12-bit CMOS multiplying Digital-
to-Analog Converters (DACs). The digital interface speed
and the AC multiplying performance are achieved by using
an advanced CMOS process optimized for data conversion
circuits. High stability on-chip resistors provide true 12-bit
integral and differential linearity over the wide industrial
temperature range of –40°C to +85°C.
The DAC7800 features a serial interface capable of clockingin
data at a rate of at least 10MHz. Serial data is clocked
(edge triggered) MSB first into a 24-bit shift register and then
latched into each DAC separately or simultaneously as
required by the application. An asynchronous CLEAR control
is provided for power-on reset or system calibration functions.
It is packaged in a 16-pin 0.3" wide plastic DIP.
The DAC7801 has a 2-byte (8 + 4) double-buffered interface.
Data is first loaded (level transferred) into the input registers
in two steps for each DAC. Then both DACs are updated
simultaneously. The DAC7801 features an asynchronous
CLEAR control. The DAC7801 is packaged in a 24-pin 0.3"
wide plastic DIP. The DAC7802 has a single-buffered 12-bit
data word interface. Parallel data is loaded (edge triggered)
into the single DAC register for each DAC. The DAC7802 is
packaged in a 24-pin 0.3" wide plastic DIP.