3 V, Parallel Input Micropower 10-/12-Bit DACs AD7392/AD7393 FEATURES FUNCTIONAL BLOCK DIAGRAM Micropower: 100 A AD7392 V DD 0.1 A typical power shutdown 12-BIT V V REF OUT DAC Single-supply 2.7 V to 5.5 V operation SHDN AD7392: 12-bit resolution 12 DAC REGISTER AGND AD7393: 10-bit resolution 12 0.9 LSB differential nonlinearity error DGND CS D0 TO D11 RS APPLICATIONS Figure 1. 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 Both parts are offered with similar pinouts, which allows users 10-/12-bit voltage output, digital-to-analog converters. The to select the amount of resolution appropriate for their applica- parts are designed to operate from a single 3 V supply. Built tions without changing the circuit card. using a CBCMOS process, these monolithic DACs offer low The AD7392/AD7393 are specified for operation over the cost and ease of use in single-supply 3 V systems. Operation is extended industrial temperature range of 40C to +85C. guaranteed over the supply voltage range of 2.7 V to 5.5 V, The AD7393AR is specified for the automotive temperature making this device ideal for battery-operated applications. range of 40C to +125C. The AD7392/AD7393 are available in 20-lead PDIP and 20-lead SOIC packages. The full-scale voltage output is determined by the external ref- erence input voltage applied. The rail-to-rail REFIN to DACOUT For serial data input, 8-lead packaged versions, see the AD7390 allows a full-scale voltage equal to the positive supply VDD or and AD7391. 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- RS ally, an asynchronous input sets the output to a zero scale at power-on or upon user demand. 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 19962007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 01121-001AD7392/AD7393 TABLE OF CONTENTS Features .............................................................................................. 1 Digital-to-Analog Converters................................................... 12 Applications....................................................................................... 1 Amplifier Section ....................................................................... 12 Functional Block Diagram .............................................................. 1 Reference Input........................................................................... 12 General Description ......................................................................... 1 Power Supply............................................................................... 13 Revision History ............................................................................... 2 Input Logic Levels ...................................................................... 13 Specifications..................................................................................... 3 Digital Interface.......................................................................... 13 Electrical Characteristics............................................................. 3 RS Reset Pin ( ) ............................................................................. 14 Timing Diagram ........................................................................... 5 SHDN Power Shutdown ( )......................................................... 14 Absolute Maximum Ratings............................................................ 6 Unipolar Output Operation...................................................... 14 ESD Caution.................................................................................. 6 Bipolar Output Operation......................................................... 15 Pin Configurations and Function Descriptions ........................... 7 Outline Dimensions....................................................................... 16 Typical Performance Characteristics ............................................. 8 Ordering Guide .......................................................................... 17 Theory of Operation ...................................................................... 12 REVISION HISTORY 8/07Rev. 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 6/04Changed from Rev. A to Rev. B Removed TSSOP.................................................................Universal Changes to Ordering Guide .......................................................... 17 3/99Changed from Rev. 0 to Rev. A 11/96Revision 0: Initial Version Rev. C Page 2 of 20