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AD9743 Datasheet(PDF) 1 Page - Analog Devices |
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AD9743 Datasheet(HTML) 1 Page - Analog Devices |
1 / 28 page Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters Data Sheet AD9741/AD9743/AD9745/AD9746/AD9747 Rev. A Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother 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 ©2007–2014 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES High dynamic range, dual DACs Low noise and intermodulation distortion Single carrier WCDMA ACLR = 80 dBc at 61.44 MHz IF Innovative switching output stage permits useable outputs beyond Nyquist frequency LVCMOS inputs with dual-port or optional interleaved single-port operation Differential analog current outputs are programmable from 8.6 mA to 31.7 mA full scale Auxiliary 10-bit current DACs with source/sink capability for external offset nulling Internal 1.2 V precision reference voltage source Operates from 1.8 V and 3.3 V supplies 315 mW power dissipation Small footprint, Pb-free, 72-pin LFCSP APPLICATIONS Wireless infrastructure: WCDMA, CDMA2000, TD-SCDMA, WiMAX Wideband communications: LMDS/MMDS, point-to-point Instrumentation: RF signal generators, arbitrary waveform generators GENERAL DESCRIPTION The AD9741/AD9743/AD9745/AD9746/AD9747 are pin- compatible, high dynamic range, dual digital-to-analog converters (DACs) with 8-/10-/12-/ 14-/16-bit resolutions and sample rates of up to 250 MSPS. The devices include specific features for direct conversion transmit applications, including gain and offset compensation, and they interface seamlessly with analog quadrature modulators, such as the ADL5370. A proprietary, dynamic output architecture permits synthesis of analog outputs even above Nyquist by shifting energy away from the fundamental and into the image frequency. Full programmability is provided through a serial peripheral interface (SPI) port. In addition, some pin-programmable features are offered for those applications without a controller. PRODUCT HIGHLIGHTS 1. Low noise and intermodulation distortion (IMD) enables high quality synthesis of wideband signals. 2. Proprietary switching output for enhanced dynamic performance. 3. Programmable current outputs and dual auxiliary DACs provide flexibility and system enhancements. FUNCTIONAL BLOCK DIAGRAM 16-BIT DAC1 16-BIT DAC2 INTERFACE LOGIC GAIN DAC GAIN DAC OFFSET DAC OFFSET DAC INTERNAL REFERENCE AND BIAS SERIAL PERIPHERAL INTERFACE 10 CMOS INTERFACE CLKP CLKN PID<15:0> P2D<15:0> IOUT1P IOUT1N IOUT2P IOUT2N AUX1P AUX1N AUX2P AUX2N Figure 1. |
Similar Part No. - AD9743_15 |
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Similar Description - AD9743_15 |
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