OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

AD7392AR

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
3 V, Parallel Input
Micropower 10-/12-Bit DACs
AD7392/AD7393
Rev. C
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©1996–2007 Analog Devices, Inc. All rights reserved.
FEATURES
Micropower: 100 μA
0.1 μA typical power shutdown
Single-supply 2.7 V to 5.5 V operation
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
FUNCTIONAL BLOCK DIAGRAM
0
112 1 - 0 0 1
12
12
12-BIT
DAC
DAC REGISTER
V
REF
SHDN
AGND
RSD0 TO D11CSDGND
AD7392
V
DD
V
OUT
Figure 1.
GENERAL DESCRIPTION
The AD7392/AD7393 comprise a set of pin-compatible
10-/12-bit voltage output, digital-to-analog converters. The
parts are designed to operate from a single 3 V supply. Built
using a CBCMOS process, these monolithic DACs offer 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 ref-
erence input voltage applied. The rail-to-rail REF
IN
to DAC
OUT
allows a full-scale voltage equal to the positive supply V
DD
or
any value in between. The voltage outputs are capable of sourc-
ing 5 mA.
A data latch load of 12 bits with a 45 ns write time eliminates
wait states when interfacing to the fastest processors. Addition-
ally, an asynchronous
RS
input sets the output to a zero scale at
power-on or upon user demand.
Both parts are offered with similar pinouts, which allows users
to select the amount of resolution appropriate for their applica-
tions without changing the circuit card.
The AD7392/AD7393 are specified for operation over the
extended industrial temperature range of −40°C to +85°C.
The AD7393AR is specified for the automotive temperature
range of −40°C to +125°C. The AD7392/AD7393 are available
in 20-lead PDIP and 20-lead SOIC packages.
For serial data input, 8-lead packaged versions, see the AD7390
and AD7391.
AD7392/AD7393
Rev. C | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics............................................................. 3
Timing Diagram ........................................................................... 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configurations and Function Descriptions ........................... 7
Typical Performance Characteristics ............................................. 8
Theory of Operation ...................................................................... 12
Digital-to-Analog Converters................................................... 12
Amplifier Section ....................................................................... 12
Reference Input........................................................................... 12
Power Supply............................................................................... 13
Input Logic Levels ...................................................................... 13
Digital Interface.......................................................................... 13
Reset Pin (
RS
) ............................................................................. 14
Power Shutdown (
SHDN
)......................................................... 14
Unipolar Output Operation...................................................... 14
Bipolar Output Operation......................................................... 15
Outline Dimensions ....................................................................... 16
Ordering Guide .......................................................................... 17
REVISION HISTORY
8/07—Rev. B to Rev. C
Changes to Specifications Section.................................................. 3
Changes to Table 3............................................................................ 6
Changes to Theory of Operation Section.................................... 12
Changes to Figure 29...................................................................... 13
Changes to Figure 32...................................................................... 14
Changes to Figure 33...................................................................... 15
Updated Outline Dimensions....................................................... 16
Changes to Ordering Guide .......................................................... 17
6/04—Changed from Rev. A to Rev. B
Removed TSSOP.................................................................Universal
Changes to Ordering Guide .......................................................... 17
3/99—Changed from Rev. 0 to Rev. A
11/96—Revision 0: Initial Version
AD7392/AD7393
Rev. C | Page 3 of 20
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
At V
REF
= 2.5 V, −40°C < T
A
< +85°C, unless otherwise noted.
Table 1. AD7392
Parameter Symbol Conditions 3 V ± 10% 5 V ± 10% Unit
STATIC PERFORMANCE
Resolution
1
N 12 12 Bits
Relative Accuracy
2
INL T
A
= +25°C ±1.8 ±1.8 LSB max
T
A
= −40°C, +85°C ±3 ±3 LSB max
Differential Nonlinearity
2
DNL T
A
= +25°C, monotonic ±0.9 ±0.9 LSB max
Monotonic ±1 ±1 LSB max
Zero-Scale Error V
ZSE
Data = 0x000, T
A
= +25°C, +85°C 4.0 4.0 mV max
Data = 0x000, T
A
= −40°C 8.0 8.0 mV max
Full-Scale Voltage Error V
FSE
T
A
= +25°C, +85°C, data = 0xFFF ±8 ±8 mV max
T
A
= −40°C, data = 0xFFF ±20 ±20 mV max
Full-Scale Temperature Coefficient
3
TCV
FS
28 28 ppm/°C typ
REFERENCE INPUT
V
REF
Range V
REF
0/V
DD
0/V
DD
V min/max
Input Resistance R
REF
2.5 2.5 MΩ typ
4
Input Capacitance
3
C
REF
5 5 pF typ
ANALOG OUTPUT
Current (Source) I
OUT
Data = 0x800, ∆ V
OUT
= 5 LSB 1 1 mA typ
Output Current (Sink) I
OUT
Data = 0x800, ∆ V
OUT
= 5 LSB 3 3 mA typ
Capacitive Load
3
C
L
No oscillation 100 100 pF typ
LOGIC INPUTS
Logic Input Low Voltage V
IL
0.5 0.8 V max
Logic Input High Voltage V
IH
V
DD
− 0.6 V
DD
− 0.6 V min
Input Leakage Current I
IL
10 10 μA max
Input Capacitance
3
C
IL
10 10 pF max
INTERFACE TIMING
3, 5
Chip Select Write Width t
CS
45 45 ns min
Data Setup t
DS
30 15 ns min
Data Hold t
DH
20 5 ns min
Reset Pulse Width t
RS
40 30 ns min
AC CHARACTERISTICS
Output Slew Rate SR Data = 0x000 to 0xFFF to 0x000 0.05 0.05 V/μs typ
Settling Time
6
t
S
To ±0.1% of full scale 70 60 μs typ
Shutdown Recovery Time t
SDR
80 μs typ
DAC Glitch Code 0x7FF to Code 0x800 to Code 0x7FF 65 65 nV/s typ
Digital Feedthrough 15 15 nV/s typ
Feedthrough V
OUT
/V
REF
V
REF
= 1.5 V dc + 1 V p-p, data = 0x000,
f = 100 kHz
−63 −63 dB typ
SUPPLY CHARACTERISTICS
Power Supply Range V
DD
RANGE
DNL < ±1 LSB 2.7/5.5 2.7/5.5 V min/max
Positive Supply Current I
DD
V
IL
= 0 V, no load 55/100 55/100 μA typ/max
Shutdown Supply Current I
DD-SD
SHDN
= 0, V
IL
= 0 V, no load
0.1/1.5 0.1/1.5 μA typ/max
Power Dissipation P
DISS
V
IL
= 0 V, no load 300 500 μW max
Power Supply Sensitivity PSS Δ V
DD
= ±5% 0.006 0.006 %/% max
1
One LSB = V
REF
/4096 V for the 12-bit AD7392.
2
The first two codes (0x000, 0x001) are excluded from the linearity error measurement.
3
These parameters are guaranteed by design and not subject to production testing.
4
Typicals represent average readings measured at +25°C.
5
All input control signals are specified with t
R
= t
F
= 2 ns (10% to 90% of 13 V) and timed from a voltage level of 1.6 V.
6
The settling time specification does not apply for negative going transitions within the last 3 LSBs of ground.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

AD7392AR

Mfr. #:
Buy AD7392AR
Manufacturer:
Analog Devices Inc.
Description:
Digital to Analog Converters - DAC 12B 3-5V uPOWER PARALLEL
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet