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AD5754 Folha de dados(PDF) 1 Page - Analog Devices |
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AD5754 Folha de dados(HTML) 1 Page - Analog Devices |
1 / 32 page Complete, Quad, 12-/14-/16-Bit, Serial Input, Unipolar/Bipolar Voltage Output DACs AD5724/AD5734/AD5754 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. 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 ©2008 Analog Devices, Inc. All rights reserved. FEATURES Complete, quad, 12-/14-/16-bit digital-to-analog converter (DAC) Operates from single/dual supplies Software programmable output range +5 V, +10 V, +10.8 V, ±5 V, ±10 V, ±10.8 V INL error: ±16 LSB maximum, DNL error: ±1 LSB maximum Total unadjusted error (TUE): 0.1% FSR maximum Settling time: 10 μs typical Integrated reference buffers Output control during power-up/brownout Simultaneous updating via LDAC Asynchronous CLR to zero scale or midscale DSP-/microcontroller-compatible serial interface 24-lead TSSOP Operating temperature range: −40°C to +85°C iCMOS process technology1 APPLICATIONS Industrial automation Closed-loop servo control, process control Automotive test and measurement Programmable logic controllers GENERAL DESCRIPTION The AD5724/AD5734/AD5754 are quad, 12-/14-/16-bit, serial input, voltage output digital-to-analog converters. They operate from single-supply voltages from +4.5 V up to +16.5 V or dual- supply voltages from ±4.5 V up to ±16.5 V. Nominal full-scale output range is software-selectable from +5 V, +10 V, +10.8 V, ±5 V, ±10 V, or ±10.8 V. Integrated output amplifiers, reference buffers, and proprietary power-up/power-down control circuitry are also provided. The parts offer guaranteed monotonicity, integral nonlinearity (INL) of ±16 LSB maximum, low noise, and 10 μs maximum settling time. The AD5724/AD5734/AD5754 use a serial interface that operates at clock rates up to 30 MHz and are compatible with DSP and microcontroller interface standards. Double buffering allows the simultaneous updating of all DACs. The input coding is user-selectable twos complement or offset binary for a bipolar output (depending on the state of Pin BIN/2sComp), and straight binary for a unipolar output. The asynchronous clear function clears all DAC registers to a user-selectable zero-scale or midscale output. The parts are available in a 24-lead TSSOP and offer guaranteed specifications over the −40°C to +85°C industrial temperature range. FUNCTIONAL BLOCK DIAGRAM DAC C DAC D DAC B INPUT REGISTER A INPUT REGISTER B INPUT REGISTER C n n DAC A LDAC REFIN VOUTD VOUTC VOUTB VOUTA REFERENCE BUFFERS SDIN SCLK SYNC SDO CLR DVCC GND n n n BIN/2sCOMP DAC_GND (2) SIG_GND (2) AD5724/AD5734/AD5754 INPUT SHIFT REGISTER AND CONTROL LOGIC AVDD AVSS INPUT REGISTER D DAC REGISTER A DAC REGISTER B DAC REGISTER C DAC REGISTER D AD5724: n = 12-BIT AD5734: n = 14-BIT AD5754: n = 16-BIT Figure 1. 1 For analog systems designers within industrial/instrumentation equipment OEMs who need high performance ICs at higher-voltage levels, iCMOS® is a technology platform that enables the development of analog ICs capable of 30 V and operating at ±15 V supplies while allowing dramatic reductions in power consumption and package size, as well as increased ac and dc performance. |
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