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部品型式

AD5545BRU

製品説明
仕様・特性

Dual, Current-Output, Serial-Input, 16-/14-Bit DACs AD5545/AD5555 FEATURES 16-bit resolution AD5545 14-bit resolution AD5555 ±1 LSB DNL monotonic ±1 LSB INL 2 mA full-scale current ±20%, with VREF = 10 V 0.5 μs settling time 2Q multiplying reference-input 6.9 MHz BW Zero or midscale power-up preset Zero or midscale dynamic reset 3-wire interface Compact TSSOP-16 package FUNCTIONAL BLOCK DIAGRAM VREFA VREFB 16 OR 14 VDD RFBA D0..DX INPUT REGISTER SDI DAC A REGISTER R R IOUTA DAC A AGNDA RFBB INPUT REGISTER CS EN CLK DAC B REGISTER R R IOUTB DAC B AGNDB DAC A B ADDR DECODE DGND RS MSB AD5545/ AD5555 POWERON RESET LDAC 02918-0- 001 Figure 1. APPLICATIONS Automatic test equipment Instrumentation Digitally controlled calibration Industrial control PLCs Programmable attenuator PRODUCT OVERVIEW The AD5545/AD5555 are 16-bit/14-bit, current-output, digitalto-analog converters designed to operate from a single 5 V supply with bipolar output up to ±15 V capability. An external reference is needed to establish the full-scale output-current. An internal feedback resistor (RFB) enhances the resistance and temperature tracking when combined with an external op amp to complete the I-to-V conversion. A serial data interface offers high speed, 3-wire microcontroller compatible inputs using serial data in (SDI), clock (CLK), and chip select (CS). Additional LDAC function allows simultaneous update operation. The internal reset logic allows power-on preset and dynamic reset at either zero or midscale, depending on the state of the MSB pin. The AD5545/AD5555 are packaged in the compact TSSOP-16 package and can be operated from –40°C to +85°C. Rev. D 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: 781.461.3113 ©2003–2011 Analog Devices, Inc. All rights reserved.

ブランド

AD

会社名

Analog Devices

本社国名

U.S.A

事業概要

半導体デバイスを製造するアメリカの多国籍企業。特にADC、DAC、MEMS、DSPなどに強い。現在は 65nm から 3μm のプロセスルールの回路を設計している。

供給状況

 
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