AD7836AS Analog Devices Inc, AD7836AS Datasheet

IC DAC 14BIT QUAD LC2MOS 44-MQFP

AD7836AS

Manufacturer Part Number
AD7836AS
Description
IC DAC 14BIT QUAD LC2MOS 44-MQFP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD7836AS

Rohs Status
RoHS non-compliant
Settling Time
16µs
Number Of Bits
14
Data Interface
Parallel
Number Of Converters
4
Voltage Supply Source
Analog and Digital, Dual ±
Power Dissipation (max)
460mW
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
44-MQFP, 44-PQFP

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a
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.
FEATURES
Four 14-Bit DACs in One Package
Voltage Outputs
Separate Offset Adjust for Each Output
Reference Range of
Maximum Output Voltage Range of
Clear Function to User-Defined Code
44-Pin MQFP Package
APPLICATIONS
Process Control
Automatic Test Equipment
General Purpose Instrumentation
DB13
DB0
WR
CS
A0
A1
A2
14
DGND
AD7836
ADDRESS
BUFFER
DECODE
INPUT
V
5 V
CC
AGND
V
SS
14
14
V
DD
DATA
DATA
DATA
DATA
DATA
REG
REG
REG
REG
REG
A
B
C
D
E
10 V
14
14
FUNCTIONAL BLOCK DIAGRAM
MUX
MUX
MUX
MUX
SEL
V
V
REF
REF
X1
X1
(+)A
(+)D V
DAC A
DAC D
V
REF
REF
X1
X1
GENERAL DESCRIPTION
The AD7836 contains four 14-bit DACs on one monolithic
chip. It has output voltages with a full-scale range of ± 10 V
from reference voltages of ± 5 V.
The AD7836 accepts 14-bit parallel loaded data from the exter-
nal bus into one of the input latches under the control of the
WR, CS and DAC channel address pins, A0–A2.
The DAC outputs are updated individually, on reception of new
data. In addition, the SEL input can be used to apply the user
programmed value in DAC Register E to all DACs, thus setting
all DAC output voltages to the same level. The contents of the
DAC data registers are not affected by the SEL input.
Each DAC output is buffered with a gain of two amplifier into
which an external DAC offset voltage can be inserted via the
DUTGNDx pins.
The AD7836 is available in a 44-lead MQFP package.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
(–)A V
(–)D V
REF
REF
X1
X1
(+)B V
(+)C V
DAC B
DAC B
REF
REF
X1
X1
(–)B
(–)C
World Wide Web Site: http://www.analog.com
CLR
Quad 14-Bit DAC
R
R
R
R
R
R
R
R
© Analog Devices, Inc., 1999
DUTGND A
DUTGND B
DUTGND C
DUTGND D
V
V
V
V
OUT
OUT
OUT
OUT
AD7836
A
B
C
D
LC
2
MOS

Related parts for AD7836AS

AD7836AS Summary of contents

Page 1

FEATURES Four 14-Bit DACs in One Package Voltage Outputs Separate Offset Adjust for Each Output Reference Range Maximum Output Voltage Range of Clear Function to User-Defined Code 44-Pin MQFP Package APPLICATIONS Process Control Automatic Test Equipment ...

Page 2

AD7836–SPECIFICATIONS Parameter A ACCURACY Resolution 14 ± 2 Relative Accuracy ± 0.9 Differential Nonlinearity ± 8 Full-Scale Error ± 8 Zero-Scale Error ± 2 Gain Error 2 Gain Temperature Coefficient Crosstalk 50 REFERENCE INPUTS DC Input ...

Page 3

TIMING SPECIFICATIONS Parameter Limit 4 300 10 NOTES 1 All ...

Page 4

... Industrial (A Version –40°C to +85°C Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Model AD7836AS *S = Plastic Quad Flatpack (MQFP). CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. ...

Page 5

Pin Mnemonic Description Logic Power Supply ± 5 Negative Analog Power Supply; –15 V ± 5 Positive Analog Power Supply; +15 V ± 5 DGND Digital Ground. AGND Analog Ground. V (+)A, ...

Page 6

AD7836 TERMINOLOGY Relative Accuracy Relative accuracy or endpoint linearity is a measure of the max- imum deviation from a straight line passing through the endpoints of the DAC transfer function measured after adjusting for zero error and full-scale ...

Page 7

INPUT CODE/1000 Figure 2. Typical INL Plot 1 15V –15V SS V (+) = +5V ...

Page 8

AD7836 Unipolar Configuration Figure 11 shows the AD7836 in the unipolar binary circuit con- figuration. The V (+) input of the DAC is driven by the REF AD586 reference. V (–) is tied to ground. Table II ...

Page 9

Power-On with CLR Low The output stage of the AD7836 has been designed to allow output stability during power-on. If CLR is kept low during power-on, then just after power is applied to the AD7836, the situation is as depicted ...

Page 10

AD7836 DUTGND Voltage Range During power-on, the V pins of the AD7836 are connected OUT to the relevant DUTGND pins via G and the 6 kΩ thin-film 6 resistor. The DUTGND potential must obey the max ratings at all times. ...

Page 11

Automated Test Equipment The AD7836 is particularly suited for use in an automated test environment. Figure 21 shows the AD7836 providing the nec- essary voltages for the pin driver and the window comparator in a typical ATE pin electronics configuration. ...

Page 12

AD7836 these DACs can be operated with supplies and a –5 V, with the V pin connected and the GND pin connected DD to –5 V. Now these can be used to provide the ...

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