. Disk Drive Systems V
. Automatic Test Equipment
. Process/lndustrial Controls
. Energy Controls
. Programmable Instrumentation
. Multi-Channei Microprocessor-Controlied Systems
. Servo ControlSystems
PACKAGE: 2o-PIN DlP/SOL
RELATIVE GAIN TEMPERATURE
ACCURACY ERROR M0'C to +85°C
11/2 LSB s2 LSB DAG8228FR
21/2 LSB A? LSB DAC8228FP
s1/2 LSB A? LSB DAC8228FS
t All commercial and industrial temperature range parts are available with burn-
FUNCTIONAL DIAGRAM v.»
I BUFFER LATCH A
WR TI LATCH a
eg [l CONTROL
DAc A/DAC B 'sa"
REV. A GND
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a unipolar output voltage. it can deliver an output voltage be-
tween 0V and +10V with Vor, = +14V (maximum output voltage
is VDD --4V). The DAC-8228's reference input can accept a
negative voltage from 0V to .-10V (the DAC's internal unity-gain
inverting amplifier inverts the input signal). Choose the DAC-
8229 for bipolar operation.
V2 m N.th 20-PIN
N c v a 0.3" CERDIP
. ' DOT .
VOUTA vans (R-Sufflx)
GND WE 20.PIN SOL
DAC A/DAC B cs (S-Suffix)
(MSB) wh 030
DBs DB, 20-PIN
Dik “2 EPOXY DIP
DBs DBs (P-Suffix)
"a Vow B
One Technology Way, PO. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700 Fax: 617/326-8703 Twx: 710/394-6577
Telex: 924491 Cable: ANALOG NORWOODMASS0A88228
Applications requiring the military temperature range should
use the DAC-8229. To make the DAC-8229 pin and functionally
compatible with the DAC-8228, AGND A and AGND B should be
tied together to function as V2, and Vss connected to GND.
The DAC-8228 consists oftwo CMOS voltage output amplifiers,
two high-accuracy R-2R resistor ladder networks, interface
control logic, and two 8-bit registers. An internal regulator main-
tains TTL logic compatibility and fast microprocessor interface
timing over the full VDD range.
The DAC-8228 dissipates only 90mW in the space saving 20-
pin 0.3" DIP or the 20-Iead SO surface mount package. Its
compact size, low power, and economical cost per channel,
makes it attractive for |