AD7393AN Analog Devices, AD7393AN Datasheet

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AD7393AN

Manufacturer Part Number
AD7393AN
Description
+3 V/ Parallel Input Micropower 10- and 12-Bit DACs
Manufacturer
Analog Devices
Datasheet

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AD7393AN
Manufacturer:
Analog Devices Inc.
Quantity:
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a
GENERAL DESCRIPTION
The AD7392/AD7393 family of 10- and 12-bit voltage-output
digital-to-analog converters is designed to operate from a single
+3 V supply. Built using a CBCMOS process, these monolithic
DACs offer the user low cost and ease of use in single-supply
+3 V systems. Operation is guaranteed over the supply voltage
range of +2.7 V to +5.5 V, making this device ideal for battery
operated applications.
The full-scale voltage output is determined by the external
reference input voltage applied. The rail-to-rail REF
DAC
supply V
capable of sourcing 5 mA.
A 12-bit wide data latch loads with a 45 ns write time allowing
interface to the fastest processors without wait states.
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.
Figure 1. AD7392 Differential Nonlinearity Error vs. Code
FEATURES
Micropower: 100 A
0.1 A Typical Power Shutdown
Single-Supply +2.7 V to +5.5 V Operation
Compact 1.1 mm Height TSSOP-20 Package
AD7392/12-Bit Resolution
AD7393/10-Bit Resolution
0.9 LSB Differential Nonlinearity Error
APPLICATIONS
Automotive 0.5 V to 4.5 V Output Span Voltage
Portable Communications
Digitally Controlled Calibration
PC Peripherals
OUT
0.8
0.6
0.4
0.2
0.2
0.4
0.6
0.8
DD
1
0
1
allows for a full-scale voltage set equal to the positive
0
or any value in between. The voltage outputs are
AD7392
512
1024
1536
CODE – Decimal
2048
2560
V
V
T
A
DD
REF
3072
= 25 C
= +2.7V
= +2.5V
3584
IN
to
4096
Micropower 10- and 12-Bit DACs
Additionally, an asynchronous RS input sets the output to zero
scale at power on or upon user demand.
Both parts are offered in the same pinout to allow users to select
the amount of resolution appropriate for their applications
without circuit card changes.
The AD7392/AD7393 are specified for operation over the ex-
tended industrial (–40 C to +85 C) temperature range. The
AD7393AR is specified for the –40 C to +125 C automotive
temperature range. AD7392/AD7393s are available in plastic
DIP, and 20-lead SOIC packages. The AD7393ARU is avail-
able for ultracompact applications in a thin 1.1 mm height
TSSOP-20 package.
For serial data input, 8-lead packaged versions, see the AD7390
and AD7391 products.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
Figure 2. AD7393 Differential Nonlinearity Error vs. Code
0.8
0.6
0.4
0.2
0.2
0.4
0.6
0.8
1
0
1
V
0
REF
AD7393
FUNCTIONAL BLOCK DIAGRAM
DGND
128
AD7392
World Wide Web Site: http://www.analog.com
CS
256
DAC REGISTER
+3 V, Parallel Input
DB0–DB11
384
12-BIT
CODE – Decimal
AD7392/AD7393
DAC
12
12
512
RS
© Analog Devices, Inc., 1999
640
V
V
T
768
DD
REF
A
= 25 C
= +2.7V
= +2.5V
AGND
V
V
SHDN
896
DD
OUT
1024

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AD7393AN Summary of contents

Page 1

... CODE – Decimal Figure 1. AD7392 Differential Nonlinearity Error vs. Code 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 ...

Page 2

AD7392/AD7393–SPECIFICATIONS AD7392 ELECTRICAL CHARACTERISTICS Parameter STATIC PERFORMANCE 1 Resolution 2 Relative Accuracy 2 Differential Nonlinearity Zero-Scale Error Full-Scale Voltage Error 3 Full-Scale Tempco REFERENCE INPUT V Range REF IN Input Resistance 3 Input Capacitance ANALOG OUTPUT Current (Source) Output Current ...

Page 3

AD7393 ELECTRICAL CHARACTERISTICS Parameter STATIC PERFORMANCE 1 Resolution 2 Relative Accuracy 2 Differential Nonlinearity Zero-Scale Error Full-Scale Voltage Error 3 Full-Scale Tempco REFERENCE INPUT V Range REF IN Input Resistance 3 Input Capacitance ANALOG OUTPUT Output Current (Source) Output Current ...

Page 4

... FS D0– THE Model DAC REGISTER AD7392AN TO AD7392AR INTERNAL DAC AD7393AN SWITCHES AD7393AR AD7393ARU 10 NOTES XIND = – +85 C; AUTO = – +125 C. The AD7392 contains 709 transistors. The die size measures 78 mil 6630 sq. mil. –4– PIN CONFIGURATIONS 1 20 ...

Page 5

AD7392 V = 2. 2.5V REF 0 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1 0 512 1024 1536 2048 2560 3072 3584 4096 CODE – Decimal Figure 5. AD7392 ...

Page 6

AD7392/AD7393 1000 AD7393 LOGIC 2.5V REF 800 600 5.5V, CODE = 155 5.5V, CODE = ...

Page 7

IDD ( (V) OUT SHDN 0% 0 TIME – 100 s/DIV Figure 23. Shutdown Recovery Time NOTE Positive logic transition; X Don’t Care. OPERATION ...

Page 8

AD7392/AD7393 AMPLIFIER SECTION The internal DAC’s output is buffered by a low power con- sumption precision amplifier. The op amp has typical settling time to 0.1% of full scale. There are slight differences in settling time for ...

Page 9

INPUT LOGIC LEVELS All digital inputs are protected with a Zener-type ESD protec- tion structure (Figure 28) that allows logic input voltages to exceed the V supply voltage. This feature can be useful if the DD user is driving one ...

Page 10

AD7392/AD7393 UNIPOLAR OUTPUT OPERATION This is the basic mode of operation for the AD7392. As shown in Figure 29, the AD7392 has been designed to drive loads as low parallel with 100 pF. The code table ...

Page 11

SEATING PLANE REV. A OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 20-Lead Plastic DIP Package (N-20) 1.060 (26.90) 0.925 (23.50 0.280 (7.11) 0.240 ...

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