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AD5546BRU-REEL7 Datenblatt(PDF) 1 Page - Analog Devices |
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AD5546BRU-REEL7 Datenblatt(HTML) 1 Page - Analog Devices |
1 / 16 page Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with 4-Quadrant Resistors AD5546/AD5556 Rev. 0 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 16-bit resolution 14-bit resolution 2- or 4-quadrant multiplying DAC ±1 LSB DNL ±1 LSB INL or ±2 LSB INL Operating supply voltage: 2.7 V to 5.5 V Low noise: 12 nV/ √Hz Low power: IDD = 10 µA 0.5 µs settling time Built-in RFB facilitates current-to-voltage conversion Built-in 4-quadrant resistors allow 0 V to –10 V, 0 V to +10 V, or ±10 V outputs 2 mA full-scale current ±20%, with VREF = 10 V Automotive operating temperature: –40°C to +125°C Compact TSSOP-28 package APPLICATIONS Automatic test equipment Instrumentation Digitally controlled calibration Digital waveform generation FUNCTIONAL BLOCK DIAGRAM DAC AD5546/ AD5556 WR LDAC MSB RS DB0–DB15 CONTROL LOGIC DAC REGISTER POR 16/14 VDD R1 R2 ROFS RFB R1 RCOM REF ROFS RFB IOUT GND Figure 1. AD5546/AD5556 Simplified Block Diagram GENERAL DESCRIPTION The AD5546/AD5556 are precision 16-/14-bit, multiplying, low power, current output, parallel input D/A converters. They operate from a single 2.7 V to 5.5 V supply with ±10 V multi- plying references for 4-quadrant outputs. Built-in 4-quadrant resistors facilitate the resistance matching and temperature tracking that minimize the number of components needed for multiquadrant applications. The feedback resistor (RFB) simpli- fies the I-V conversion with an external buffer. The AD5546/ AD5556 are packaged in compact TSSOP-28 packages with operating temperatures from –40°C to +125°C. 16/14-BIT 2 5V 6 5 4 GND VIN TRIM U3 ADR03 VOUT 5V VDD R1 ROFS ROF –VREF TO +VREF VOUT RFB RFB C2 GND U1 AD5546/AD5556 IOUT R2 U2A OP2177 + – C1 –VREF +VREF RCOM R1 16/14 DATA REF U2B OP2177 – + WR WR LDAC LDAC RS RS MSB MSB Figure 2. 16-/14-Bit, 4-Quadrant Multiplying DAC with a Minimum of External Components |
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Ähnliche Beschreibung - AD5546BRU-REEL7 |
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