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AD5744 датащи(PDF) 1 Page - Analog Devices |
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AD5744 датащи(HTML) 1 Page - Analog Devices |
1 / 27 page Complete, Quad, 14/16-Bit, High Accuracy, Serial Input, Bipolar Voltage Output DAC iCMOS TM Preliminary Technical Data Rev. PrA 15-Nov-04 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: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved. FEATURES Complete quad 14/16-bit D/A converter Programmable output range: ±10 V, ±10.25 V, or ±10.5 V ±1 LSB max INL error, ±1 LSB max DNL error Low noise : 60 nV/√Hz Settling time: 10µs max Integrated reference buffers Internal reference, 10 ppm/°C On-chip temp sensor, ±5°C accuracy Output control during power-up/brownout Programmable short-circuit protection Simultaneous updating via LDAC Asynchronous CLR to zero code Digital offset and gain adjust Logic output control pins DSP/microcontroller compatible serial interface Temperature range:−40°C to +85°C iCMOS™ Process Technology APPLICATIONS Industrial automation Open/Closed-loop servo control Process control Data acquisition systems Automatic Test Equipment Automotive test and measurement High accuracy instrumentation GENERAL DESCRIPTION The AD5744/64 is a quad, 14/16-bit serial input, voltage output digital-to analog converter that operates from supply voltages of ±12 V up to ±15 V. Nominal full-scale output range is ±10 V, provided are integrated output amplifiers, reference buffers, internal reference, and proprietary power-up/power-down control circuitry. It also features a digital I/O port that may be programmed via the serial interface, and an analog temperature sensor. The part incorporates digital offset and gain adjust registers per channel. The AD5744/64 is a high performance converter that offers guaranteed monotonicity, integral nonlinearity (INL) of ±1 LSB, low noise and 10 µs settling time and includes an on-chip 5 V reference with a reference tempco of 10 ppm/°C max. During power-up (when the supply voltages are changing), Vout is clamped to 0V via a low impedance path. The AD5744/64 uses a serial interface that operates at clock rates of up to 30 MHz and is compatible with DSP and microcontroller interface standards. Double buffering allows the simultaneous updating of all DACs. The input coding is programmable to either twos complement or Offset binary formats. The asynchronous clear function clears all DAC registers to either bipolar zero or zero-scale depending on the coding used. The AD5744/64 is ideal for both closed-loop servo control and open-loop control applications. The AD5744/64 is available in a 32-lead TQFP package, and offers guaranteed specifications over the −40°C to +85°C industrial temperature range. See functional block diagram, Figure 1. iCMOS™ Process Technology 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 30V and operating at +/-15V supplies while allowing dramatic reductions in power consumption and package size, and increased AC and DC performance. AD5744/AD5764 |
Аналогичный номер детали - AD5744 |
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Аналогичное описание - AD5744 |
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