DAC1146_15 Datasheet, PDF (1/4 Pages) Analog Devices – LOW COST HIGH ACCURACY 18 BIT D/A CONVERTER

-.. ANALOG
W DEVICES
low Cost/HighAccuracy
18-Bit0/ A Converter
I
DAC1146
I
FEATURES
Integral Nonlinearity: %0.00076% FSR max
Differential Nonlinearity: %0.00076% FSR max
Low Differential Nonlinearity T.C.: %1ppmfC max
Wide Power Supply Operation: %11.5V to %16V
Fast Settling: 6p.s to %0.00076% FSR
Small Size 2" x 2" x 0.4"
APPLICATIONS
Automatic Test Equipment
OBSOLET.E.- Digital Audio
Sonar
Robotics
Nuclear Instrumentation
GENERAL DESCRIPTION
The DAC1l46 is a low cost, I8-bit resolution (I part in 262,144),
digital-to-analog converter that provides high accuracy, high
stability and is contained in a 2" X 2" x 0.4" module.
Integral and differential nonlinearity are both guaranteed at
:!:0: .00076% FSR maximum. Additional guaranteed performance
features include: differential nonlinearity T.C. :!::IppmrC
maximum, offset T.e. :!::3°J.LVrCmaximum, gain T.e.
:!::I2ppmrC maximum, bipolar offset T.C. :!:7: ppm/oC
maximum.
DAC1146
10kH
10kH
I
SkU
The DACl146 makes use of CMOS integrated circuits, thin-film
resistor technology and proprietary CMOS current-steering
switches to obtain high resolution, high reliability and small
size. The calculated MTBF for the DACll46 is 275,445 hours,
per Mil Handbook 217e.
The DACII46 can operate with power supplie~ ranging from
18.BIT
CMOS OAC
(CURRENT
OUTPUT)
:!::11.5V to :!:1: 6.0V. An internal precision reference is provided,
an external reference can be used. The external reference voltage
input range is - 12V to + I2V. The analog output ranges include:
+SV, + lOV, :!::5V,:!::JOV, -,2mAand:!:: ImA,andareselectable
via pin programming (see Figure I). Digital input coding for
unipolar operation is true binary, bipolar input coding is offset
binary or 2's complement.
Figure 1. DAC1146 Functional Block Diagram
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