AD370_15 Datasheet, PDF (1/5 Pages) Analog Devices – COMPLETE LOW POWER 12 BIT D/A CONVERTER

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.~ ANAL'OG
W DEVICES
CompleteL, owPower
12-BitD/A Converter
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AD370/AD371!
FEATURES
Bipolar Voltage Output: A0370
AO370/AO371 FUNCTIONAL BLOCK DIAGRAM
Unipolar Voltage Output: A0371
Low Power: 150mW max
Linearity: f:1/2LSB, -55°C to +125°C (S Version)
TTL/CMOS Compatible
Compatible with Standard 18-Pin OAC Configurations
Hermetic 18-Pin DIP ("0" Package)
Factory Trimmed Gain and Offset: No External Adjustments
Required
Monotonicity Guaranteed Over Specified Temperature Range
OB PRODUCT DESCRIPTION
The AD370/AD371 is a complete 12-bit digital-to-analog con-
S _{verter fabricated with the most advanced monolithic and hy-}
O ^{IJ brid technologies. The design incorporates a low power mono-}
lithic CMOS DAC, precision high speed FET-input operational
L amplifiers and a low drift reference available in a hermetically
E ^{sealed package. This innovative design results in significant}
performance advantages over conventional designs. The inte-
TE _{gral package-substrate combined with a lower chip count im-}
IS-PIN DIP
PRODUCT HIGHLIGHTS
1. The AD370/AD371 replaces other devices of this type with
significant increases in performance.
2. Reduced power consumption requirements (150mW max)
result in improved stability and shorter wann-up time.
3. The precision output amplifiers and CMOS DAC have been
optimized to settle within 1/2LSB for a full scale transition
in 3511s.
proves reliability over the standard low power hybrids of
4. Reduced chip count and integral package-subsrate im-
this type.
prove reliability.
The converters come in two versions: AD370 with a bipolar
output voltage range (-tOV to +10V) and AD371 with a uni-
polar output voltage range (0 to +10V). Each device is inter-
nally laser trimmed for gain and offset to provide adjustment-
5. System performance upgrading is possible without redesign.
6. Internally laser trimmed-no gain or offset adjustments are
required for specified accuracy.
free operation with only f:0.05% absolute error. The FET input
operational amplifiers optimize the speed vs. power trade-off
by settling to I/2LSB from a full scale transition in 3511swith
7. The device is available in a hermetically-sealed ceramic 18
lead dual-in-line package. Processing to MIL-STD-883 Class
B is available.
.
maximum total power dissipation of only 150mW. The low
power monolithic CMOS DAC employs a current-switched
silicon-chromium R-2R ladder to ensure that mono tonicity is
8. The AD370/AD371 is a second-source for 18-pin 12-bit
DACs of the same configuration.
maintained over the full temperatUre range.
The AD370/AD371 "K" and "S" features :!:I/2LSB maximum
linearity error. Its rated temperatUre ranges are 0 to +70° C
for the "J" and "K" versions and -55° C to + 12 5° C for the "S"
versIOn.
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