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AD390JDADN/a5avaiQuad 12-Bit Microprocessor-Compatible D/A Converter
AD390KDADN/a10avaiQuad 12-Bit Microprocessor-Compatible D/A Converter
AD390SDADIN/a1avaiQuad 12-Bit Microprocessor-Compatible D/A Converter
AD390TDADN/a48avaiQuad 12-Bit Microprocessor-Compatible D/A Converter


AD390TD ,Quad 12-Bit Microprocessor-Compatible D/A ConverterFEATURES Four Complete 12-Bit DACs in One IC Package Linearity Error t 1/2LSB Tm... - T,,,.,, ..
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AD420AN-32 ,Serial Input 16-Bit 4 mA-20 mA, 0 mA-20 mA DACCHARACTERISTICSVOUTFS Output Voltage Range (Pin 17) 0 5 VVOLTAGE REFERENCEREF OUT = +25

AD390JD-AD390KD-AD390SD-AD390TD
Quad 12-Bit Microprocessor-Compatible D/A Converter
ANALOG
Ly DEVICES
Quad 12-8it Microprocessor-
Compatible MI Converter
AD390"
FEATURES
Four Complete 12-Btt DACs in One IC Package
Linearity Error t 1/2LSB Tm... - Tm (AD390K, TI
Factory-Trimmod Gain and Offset
Buffered Voltage Output
Mortotortieity Guaranteed Over Full Temperature Range
Doubie-Buffttrttd Data Latches
Includes Reference and Buffer
Fast Settling: 8pa max to th2LSB
PRODUCT DESCRIPTION
The AD390 contains four 12-bit high speed voltage-output
digital-to-analog converters in a compact 28-pin hybrid package.
The design is based on a proprietary latched 12-bit DAC chip
which reduces chip count and provides high reliability. The
AD390 is ideal for systems requiring digital control of many
analog voltages where board space is at a premium. Such appli-
cations include automatic test equipment, process controllers,
and vector-scan displays.
The AD390 is laser-trimmed to t 1/2LSB max nonlinearity
(AD390KD, TD) and absolute accuracy of 20.05 percent of
full scale. The high initial accuracy is made possible by the use
of thin-ftlm scaling resistors on the monolithic DAC chips. The
internal buried Zener voltage reference provides excellent tem-
perature drift characteristics (20pprnf'C) and an initial tolerance
of 20.03% maximum. The internal reference buffer allows a
single common reference to be used for multiple AD390 devices
in large systems.
The individual DACs are accessed by the m'thmugh CyTi
control inputs and the K0 and IT lines. These contrpl signals
permit the registers of the four DACt to be loaded sequentially
and the outputs to be simultaneously updated.
The AD390 outputs are calibrated for a t 10V output mge
with positive-true offset binary input coding. A 0 to +10V
vetsion is available on special order.
The AD390 is packaged in a 28-lead ceramic package and is
specified for operation over the 0 to + 70°C and - 55'C to + 125''C
temperature range.
'Proueted by patent number! 3,803,590; 3,890,611; 3,932,053;
3,978,473; 4,020,486 and other patent: pending.
REV. A
FUNCTIONAL BLOCK DIAGRAM
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PRODUCT HIGHLIGHTS
1. The AD390 offers a dramatic reddetion in printed circuit
board space requirements in systems using multiple DACs.
2. Each DAC is independently addressable, providing a versatile
control architecture for simple interface to microprocessors.
All latch enable signals are level-triggered.
3. The output voltage is trimmed to a full scale accuracy of
:0.05%. Settling time to t 1/2LSB is 8 microseconds
maximum.
4. An internal 10 volt reference is available or an external reference
can be used. With menemnl reference, the AD390 gain TC
is , SppmPC maximum.
5. The proprietary monolithic DAC chips provide excellent
linearity and guaranteed monotonicity over the full operating
temperature range.
6. The 28-pin double-width hybrid package provides extremely
high futictiotul density. No external components or adjustments
are required to provide the complete function.
7. The AD39OSD and AD390TD feature guaranteed accuracy
and linearity over the - 55'C to + 125°C temperature range.
DIGITAL-TO-ANALOG CON VERTERS 2-23
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Model AD39OJD/SD AD390KD/TD
Min Typ Max Min Typ Max Units
DATA INPUTS (Pins 1-12 and 23-28)1
TTL or 5 Volt CMOS
Input Voltage
BitON(Logic“1") +2.0 +5.5 +2.0 +5.5 V
Bit OFF (Logic "o'') + 0.8 + 0.8 V
Input Current (Pin 24 is 3 A Larger)
Bit ON (Logic "i'') 500 1200 500 1200 WA
Bit OFF (Logic "o'') 150 400 150 400 wh
RESOLUTION 12 12 Bits
OUTPUT'
Voltage Range' t 10 t 10 v
Current 5 5 mA
Settling Time (to t 'dLSB) 4 8 4 il us
ACCURACY
Gain Error (w/ext. 10.000V reference) t 0.05 t 0.1 t 0.025 , 0.05 ''/o of FSR'
Offset t 0.025 t 0.05 t 0.012 t 0.025 % of FSR
Linearity Error t 1/4 t 3/4 t 1/8 t 1/2 LSB
Differential Linearity Error t 1/2 t 3/4 t 1/4 , 1/2 LSB
TEMPERATURE DRIFT
Gain (internal reference) t 40 t 20 pprnf'C
(external reference) t 10 t 5 ppm/°C
Zero t 10 t 5 ppml'C
Linearity Error TU,- Tm t 1/2 t 3/4 , 1/4 t 1/2 LSB
Differential Linearity MONOTONICITY GUARANTEED OVER FULL TEMPERATURE RANGE
CROSSTALK’ 0.1 0.1 LSB
REFERENCE OUTPUT
Voltage (without load) 9.997 10 .000 10.003 9.997 10.000 10.003 V
Current (available for external use) 2.5 3.5 2.5 3.5 mA
REFERENCE INPUT
Input Resistance 10t0 1010 n
Voltage Range 5 1 1 5 l l V
POWER REQUIREMENTS
Voltages 213.5 +15 216.5 t13.5 :15 t16.5 V
Current
+ Vs 20 35 20 35 mA
- Vs - 85 - 100 - 85 - 100 mA
POWER SUPPLY GAIN SENSITIVITY
+ V s 0.002 0.006 0.002 0.006 %FS/%
- Vs 0.0025 0.006 0.0025 0.006 %FS/%
TEMPERATURE RANGE
0pcrating(Fu11 Specifications)), K 0 + 70 0 + 70 "C
S,T -55 +125 -55 +125 "C
Storage - 65 + 150 - 65 + 150 "C
'Timing speciftcations appear m Table 2.
2The AD39O outputs Ire guaranteed stable for load capaciunces up to 300pF.
, t 10V mug: is standard. A 0 to 10V version is also IVlithe. To order, use the following part numbers:
ADSOZO7-1 J Grade
AD50207-2 K Grade A ',
AD50207-3 SGnde \
AD50207-4 T Grade pm
AD50207-7 8/8833 Grade J:
AD50207-8 T/8833 Grade
'FSR mans Full Scale Range and is equal to 20V for a , 10V range.
sCmssnlk is dersned " the change in my one output as I result of my other output being driven from - 10V to + 10V into I 2ktt load.
"The A0390 can be used with supply voltage " low " , 11.4V, Figure 10.
Specirtcations subiect to change without notice.
2-24 DIGITAL. TO-ANAL OG CONVERTERS
REV. A
ABSOLUTE MAXIMUM RATINGS
Analog Outputs (Pins 16, 18-2 I)
+315 to DGND ................... 0 to + 18V .............. Indefinite Short to AGND or DGND
- Vs to DGND ................... 0 to - 18V Momentary Short to t Vs
Digital Inputs (Pins 1-12, 23-28) to DGND . . . . -l to +7V Storage Temperature ............ --65''C to +150°C
Ref In to DGND ..................... r-Vs Lead Temperature (Soldering, 10 Seconds) ...... + 300°C
AGNDtoDGND....................:0.6V .
ORDERING GUIDE
Temperature Gain Error Linearity Error Package
Model Range 25N1 ru-ru, Option‘
AD39OJD 0 to + 70°C t 4LSB t 3/4LSB DH-28
AD390KD 0 to + 70"C t 2LSB Le. l/2LSB DH-28
AD390SD - 55'C to + 125''C , 41.83 , 3/4LSB DH-28
AD390TD - 55°C to + 125''C t 2LSB t l/2LSB DH-28
'DH-28 = Side Bnnd Ceramic DIP for Hybrid. For outline information see Package Information section.
PIN CONFIGURATION
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