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AD5552BRZ 데이터시트(PDF) 1 Page - Analog Devices |
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AD5552BRZ 데이터시트(HTML) 1 Page - Analog Devices |
1 / 16 page 2.7 V to 5.5 V, Serial-Input, Voltage-Output, 14-Bit DACs AD5551/AD5552 Rev. A 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 ©2000–2010 Analog Devices, Inc. All rights reserved. FEATURES Full 14-bit performance 3 V and 5 V single supply operation Low 0.625 mW power dissipation 1 μs settling time Unbuffered voltage output capable of driving 60 kΩ loads directly SPI/QSPI/MICROWIRE-compatible interface standards Power-on reset clears DAC output to 0 V (unipolar mode) 5 kV HBM ESD classification APPLICATIONS Digital gain and offset adjustment Automatic test equipment Data acquisition systems Industrial process control GENERAL DESCRIPTION The AD5551/AD5552 are single, 14-bit, serial-input, voltage- output DACs that operate from a single 2.7 V to 5.5 V supply. The DAC output range extends from 0 V to VREF. These DACs provide 14-bit performance without any adjust- ments. The DAC output is unbuffered, which reduces power consumption and offset errors contributed by an output buffer. With an external op amp, the AD5552 can be operated in bipolar mode generating a ±VREF output swing. The AD5552 also includes Kelvin sense connections for the reference and analog ground pins to reduce layout sensitivity. For higher precision applications, refer to 16-bit DACs AD5541, AD5542, and AD5544. The AD5551/AD5552 utilize a versatile 3-wire interface that is compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards. The AD5551 and AD5552 are available in 8-lead and 14-lead SOIC packages. FUNCTIONAL BLOCK DIAGRAMS 6 1 2 8 7 14-BIT DAC 14-BIT DATA LATCH SERIAL INPUT REGISITER VDD DGND DIN VREF CS SCLK 3 4 5 VOUT AGND AD5551 CONTROL LOGIC Figure 1. 14 12 14-BIT DATA LATCH SERIAL INPUT REGISITER VDD DGND 11 LDAC 8 SCLK CS 7 DIN 10 2 VREFS 5 VREFF 6 VOUT 1 RFB 13 INV AD5552 3 AGNDF 4 AGNDS 14-BIT DAC RFB RINV CONTROL LOGIC Figure 2. PRODUCT HIGHLIGHTS 1. Single Supply Operation. The AD5551 and AD5552 are fully specified and guaranteed for a single 2.7 V to 5.5 V supply. 2. Low Power Consumption. Typically 0.625 mW with a 5 V supply. 3. 3-Wire Serial Interface. 4. Unbuffered output capable of driving 60 kΩ loads, which reduces power consumption as there is no internal buffer to drive. 5. Power-On Reset Circuitry. |
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