2.5 V to 5.5 V, 230 A, Dual Rail-to-Rail Voltage Output 10-/12-Bit DACs Data Sheet AD5313/AD5323 FEATURES GENERAL DESCRIPTION AD5313: 2 buffered 10-bit DACs in 1 package The AD5313/AD5323 are dual, 10-/12-bit buffered voltage output A version: 4 LSB INL, B version: 2 LSB INL DACs in a 16-lead TSSOP package that operate from a single AD5323: 2 buffered 12-bit DACs in 1 package 2.5 V to 5.5 V supply, consuming 230 A at 3 V. Their on-chip A version: 16 LSB INL, B version: 8 LSB INL output amplifiers allow the outputs to swing rail to rail with a slew 16-lead TSSOP package rate of 0.7 V/s. The AD5313/AD5323 utilize a versatile 3-wire Micropower operation: 300 A at 5 V (including reference serial interface that operates at clock rates up to 30 MHz and is current) compatible with standard SPI, QSPI, MICROWIRE, and DSP Power-down to 200 nA at 5 V, 50 nA at 3 V interface standards. 2.5 V to 5.5 V power supply The references for the two DACs are derived from two reference Double-buffered input logic pins (one per DAC). These reference inputs can be configured Guaranteed monotonic by design over all codes as buffered or unbuffered inputs. The devices incorporate a power- Buffered/unbuffered reference input options on reset circuit, which ensures that the DAC outputs power up Output range: 0 V to V or 0 V to 2 V REF REF to 0 V and remain there until a valid write to the device takes Power-on reset to 0 V CLR place. There is also an asynchronous active low pin that SDO daisy-chaining option clears both DACs to 0 V. The outputs of both DACs can be LDAC Simultaneous update of DAC outputs via pin updated simultaneously using the asynchronous LDAC input. CLR Asynchronous facility The devices contain a power-down feature that reduces the Low power serial interface with Schmitt-triggered inputs current consumption of the devices to 200 nA at 5 V (50 nA at On-chip rail-to-rail output buffer amplifiers 3 V) and provides software-selectable output loads while in power- Qualified for automotive applications down mode. The devices can also be used in daisy-chaining APPLICATIONS applications using the SDO pin. Portable battery-powered instruments The low power consumption of these devices in normal operation Digital gain and offset adjustment makes them ideally suited to portable battery operated equipment. Programmable voltage and current sources The power consumption is 1.5 mW at 5 V and 0.7 mW at 3 V, Programmable attenuators reducing to 1 W in power-down mode. FUNCTIONAL BLOCK DIAGRAM V V A DD BUF A REF AD5313/AD5323 POWER-ON RESET INPUT DAC STRING BUFFER V A OUT REGISTER REGISTER DAC SYNC INTERFACE POWER-DOWN RESISTOR LOGIC SCLK LOGIC NETWORK DIN DAC INPUT STRING V B BUFFER OUT REGISTER REGISTER DAC SDO GAIN-SELECT RESISTOR LOGIC NETWORK DCEN BUF B V B GND LDAC CLR PD REF Figure 1. Rev. C Document Feedback 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 19992015 Analog Devices, Inc. All rights reserved. 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. Technical Support www.analog.com 00472-001AD5313/AD5323 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Low Power Serial Interface ....................................................... 16 Applications ....................................................................................... 1 Double-Buffered Interface ........................................................ 16 General Description ......................................................................... 1 Power-Down Modes....................................................................... 18 Functional Block Diagram .............................................................. 1 Microprocesser Interfacing ........................................................... 19 Revision History ............................................................................... 2 AD5313/AD5323 to ADSP-2161 Interface ............................. 19 Specifications ..................................................................................... 3 AD5313/AD5323 to 68HC11/68L11 Interface....................... 19 AC Characteristics ........................................................................ 6 AD5313/AD5323 to 80C51/80L51 Interface .......................... 19 Timing Characteristics ................................................................ 6 AD5313/AD5323 to MICROWIRE Interface ........................ 19 Absolute Maximum Ratings ............................................................ 8 Applications Information .............................................................. 20 ESD Caution .................................................................................. 8 Typical Application Circuit ....................................................... 20 Pin Configuration and Function Descriptions ............................. 9 Bipolar Operation Using the AD5313/AD5323........................ 20 Terminology .................................................................................... 10 Opto-Isolated Interface for Process Control Applications ... 21 Typical Performance Characteristics ........................................... 11 Decoding Multiple AD5313/AD5323s .................................... 21 Theory of Operation ...................................................................... 14 AD5313/AD5323 as a Digitally Programmable Window Detector ....................................................................................... 21 Digital to Analog ........................................................................ 14 Coarse and Fine Adjustment Using the AD5313/AD5323 ... 22 Resistor String ............................................................................. 14 Daisy-Chain Mode ..................................................................... 22 DAC Reference Inputs ............................................................... 14 Power Supply Bypassing and Grounding ................................ 23 Output Amplifier ........................................................................ 14 Outline Dimensions ....................................................................... 24 Power-On Reset .............................................................................. 15 Ordering Guide .......................................................................... 24 CLR Clear Function ( ) ................................................................ 15 Automotive Products ................................................................. 24 Serial Interface ................................................................................ 16 Input Shift Register..................................................................... 16 REVISION HISTORY 5/15Rev. B to Rev. C 8/03Rev. 0 to Rev. A Deleted AD5303............................................................. Throughout Added A Version ................................................................ Universal Changes to Features Section............................................................ 1 Changes to Features .......................................................................... 1 Deleted Figure 7 and Figure 10 Renumbered Sequentially ..... 11 Changes to Specifications ................................................................. 2 Deleted Figure 13 and Figure 14 ................................................... 12 Changes to Absolute Maximum Ratings ........................................ 5 Changes to Output Amplifier Section ......................................... 14 Changes to Ordering Guide ............................................................. 5 Deleted Figure 31 ............................................................................ 18 Updated Outline Dimensions ....................................................... 18 Changed ADSP-2101 to ADSP-2161 ........................................... 19 Changes to Ordering Guide .......................................................... 24 4/99Revision 0: Initial Version Added Automotive Products Section........................................... 24 6/07Rev. A to Rev. B Updated Format .................................................................. Universal Changes to Table 4 ............................................................................ 8 Changes to the Ordering Guide .................................................... 25 Rev. C Page 2 of 24