AD7392AR-REEL Datasheet, PDF (1/20 Pages) Analog Devices – 3 V, Parallel Input Micropower 10-/12-Bit DACs

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
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 REFIN to DACOUT
allows a full-scale voltage equal to the positive supply VDD 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.
3 V, Parallel Input
Micropower 10-/12-Bit DACs
AD7392/AD7393
FUNCTIONAL BLOCK DIAGRAM
V_REF
AD7392
12-BIT
DAC
12
DAC REGISTER
12
V_DD
V_OUT
SHDN
AGND
DGND CS
D0 TO D11 RS
Figure 1.
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.
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: [phone]
www.analog.com
Fax: [phone] ©1996–2007 Analog Devices, Inc. All rights reserved.