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DAC8562GBC Datasheet

  • DAC8562GBC

  • +5 Volt, Parallel Input Complete 12-Bit DAC

  • 638.48KB

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a
FEATURES
Complete 12-Bit DAC
No External Components
Single +5 Volt Operation
1 mV/Bit with 4.095 V Full Scale
True Voltage Output, 5 mA Drive
Very Low Power 鈥? mW
APPLICATIONS
Digitally Controlled Calibration
Servo Controls
Process Control Equipment
PC Peripherals
REF
+5 Volt, Parallel Input
Complete 12-Bit DAC
DAC8562
FUNCTIONAL BLOCK DIAGRAM
REFOUT
V
DD
DAC-8562
12-BIT
DAC
12
AGND
DAC REGISTER
12
V
OUT
DGND
CE
DATA
CLR
GENERAL DESCRIPTION
The DAC8562 is a complete, parallel input, 12-bit, voltage out-
put DAC designed to operate from a single +5 volt supply. Built
using a CBCMOS process, these monolithic DACs offer the
user low cost, and ease-of-use in +5 volt only systems.
Included on the chip, in addition to the DAC, is a rail-to-rail
amplifier, latch and reference. The reference (REFOUT) is
trimmed to 2.5 volts, and the on-chip amplifier gains up the
DAC output to 4.095 volts full scale. The user needs only sup-
ply a +5 volt supply.
The DAC8562 is coded straight binary. The op amp output
swings from 0 to +4.095 volts for a one millivolt per bit resolu-
tion, and is capable of driving
鹵
5 mA. Built using low tempera-
ture-coefficient silicon-chrome thin-film resistors, excellent
linearity error over temperature has been achieved as shown be-
low in the linearity error versus digital input code plot.
Digital interface is parallel and high speed to interface to the
fastest processors without wait states. The interface is very sim-
ple requiring only a single
CE
signal. An asynchronous
CLR
in-
put sets the output to zero scale.
The DAC8562 is available in two different 20-pin packages,
plastic DIP and SOL-20. Each part is fully specified for opera-
tion over 鈥?0擄C to +85擄C, and the full +5 V
鹵
5% power supply
range.
For MIL-STD-883 applications, contact your local ADI sales
office for the DAC8562/883 data sheet which specifies opera-
tion over the 鈥?5擄C to +125擄C temperature range.
1
0.75
LINEARITY ERROR 鈥?LSB
V
DD
= +5V
T
A
= 鈥?5
擄
C, +25
擄
C, +125
擄
C
鈥?5
擄
C
0.5
0.25
0
鈥?.25
鈥?.5
+25
擄
C & +125
擄
C
鈥?.75
鈥?
0
1024
2048
3072
DIGITAL INPUT CODE 鈥?Decimal
4096
Figure 1. Linearity Error vs. Digital Input Code Plot
REV. A
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703

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