AD9760ARUZ50RL7 Analog Devices

10-Bit, 125 MSPS a TxDAC D/A Converter AD9760 FUNCTIONAL BLOCK DIAGRAM FEATURES Member of Pin-Compatible TxDAC Product Family +5V 125 MSPS Update Rate 0.1
F 10-Bit Resolution Excellent Spurious Free Dynamic Range Performance REFLO COMP1 AVDD ACOM SFDR to Nyquist @ 40 MHz Output: 52 dBc +1.20V REF AD9760 50pF 0.1
F Differential Current Outputs: 2 mA to 20 mA REFIO 0.1
F CURRENT COMP2 Power Dissipation: 175 mW @ 5 V to 45 mW @ 3 V SOURCE FS ADJ ARRAY Power-Down Mode: 25 mW @ 5 V R SET On-Chip 1.20 V Reference +5V DVDD I OUTA SEGMENTED LSB Single +5 V or +3 V Supply Operation DCOM I OUTB SWITCHES SWITCHES Packages: 28-Lead SOIC and TSSOP CLOCK Edge-Triggered Latches CLOCK LATCHES SLEEP APPLICATIONS DIGITAL DATA INPUTS (DB9DB0) Communication Transmit Channel: Basestations The AD9760 is a current-output DAC with a nominal full-scale Set Top Boxes output current of 20 mA and > 100 k output impedance. Digital Radio Link Differential current outputs are provided to support single- Direct Digital Synthesis (DDS) ended or differential applications. Matching between the two Instrumentation current outputs ensures enhanced dynamic performance in a PRODUCT DESCRIPTION differential output configuration. The current outputs may be The AD9760 and AD9760-50 are the 10-bit resolution members tied directly to an output resistor to provide two complemen- of the TxDAC series of high performance, low power CMOS tary, single-ended voltage outputs or fed directly into a trans- digital-to-analog converters (DACs). The AD9760-50 is a lower former. The output voltage compliance range is 1.25 V. performance option that is guaranteed and specified for 50 MSPS The on-chip reference and control amplifier are configured for operation. The TxDAC family that consists of pin compatible 8-, maximum accuracy and flexibility. The AD9760 can be driven 10-, 12- and 14-bit DACs is specifically optimized for the trans- by the on-chip reference or by a variety of external reference mit signal path of communication systems. All of the devices voltages. The internal control amplifier that provides a wide share the same interface options, small outline package and (>10:1) adjustment span allows the AD9760 full-scale current pinout, thus providing an upward or downward component to be adjusted over a 2 mA to 20 mA range while maintaining selection path based on performance, resolution and cost. Both excellent dynamic performance. Thus, the AD9760 may oper- the AD9760 and AD9760-50 offer exceptional ac and dc ate at reduced power levels or be adjusted over a 20 dB range to performance while supporting update rates up to 125 MSPS provide additional gain ranging capabilities. and 60 MSPS respectively. The AD9760 is available in a 28-lead SOIC and TSSOP packages. The AD9760s flexible single-supply operating range of 2.7 V to It is specified for operation over the industrial temperature range. 5.5 V and low power dissipation are well suited for portable and low power applications. Its power dissipation can be further PRODUCT HIGHLIGHTS reduced to a mere 45 mW without a significant degradation in 1. The AD9760 is a member of the TxDAC product family that performance by lowering the full-scale current output. Also, a provides an upward or downward component selection path power-down mode reduces the standby power dissipation to based on resolution (8 to 14 bits), performance and cost. approximately 25 mW. 2. Manufactured on a CMOS process, the AD9760 uses a pro- The AD9760 is manufactured on an advanced CMOS process. A prietary switching technique that enhances dynamic perfor- segmented current source architecture is combined with a propri- mance beyond what was previously attainable by higher etary switching technique to reduce spurious components and power/cost bipolar or BiCMOS devices. enhance dynamic performance. Edge-triggered input latches and a 3. On-chip, edge-triggered input CMOS latches interface readily 1.2 V temperature compensated bandgap reference have been inte- to +3 V and +5 V CMOS logic families. The AD9760 can grated to provide a complete monolithic DAC solution. Flexible support update rates up to 125 MSPS. supply options support +3 V and +5 V CMOS logic families. 4. A flexible single-supply operating range of 2.7 V to 5.5 V and TxDAC is a registered trademark of Analog Devices, Inc. a wide full-scale current adjustment span of 2 mA to 20 mA allow the AD9760 to operate at reduced power levels. REV. B 5. The current output(s) of the AD9760 can be easily config- Information furnished by Analog Devices is believed to be accurate and ured for various single-ended or differential circuit topologies. reliable. However, no responsibility is assumed by Analog Devices for its One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. use, nor for any infringements of patents or other rights of third parties Tel: 781/329-4700 World Wide Web Site: AD9760* PRODUCT PAGE QUICK LINKS Last Content Update: 02/23/2017 COMPARABLE PARTS REFERENCE MATERIALS View a parametric search of comparable parts. Informational Advantiv Advanced TV Solutions EVALUATION KITS Solutions Bulletins & Brochures AD9760 Evaluation Board Digital to Analog Converters ICs Solutions Bulletin DOCUMENTATION DESIGN RESOURCES Application Notes AD9760 Material Declaration AN-237: Choosing DACs for Direct Digital Synthesis PCN-PDN Information AN-320A: CMOS Multiplying DACs and Op Amps Combine Quality And Reliability to Build Programmable Gain Amplifier, Part 1 Symbols and Footprints AN-414: Low Cost, Low Power Devices for HDSL Applications DISCUSSIONS AN-420: Using the AD9708/AD9760/AD9701/AD9764-EB View all AD9760 EngineerZone Discussions. Evaluation Board AN-595: Understanding Pin Compatibility in the TxDAC SAMPLE AND BUY Line of High Speed D/A Converters Visit the product page to see pricing options. AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC TECHNICAL SUPPORT Data Sheet Submit a technical question or find your regional support AD9760: 10-Bit, 125 MSPS+ TxDAC D/A Converter Data number. Sheet DOCUMENT FEEDBACK TOOLS AND SIMULATIONS AD9760 IBIS Models Submit feedback for this data sheet. This page is dynamically generated by Analog Devices, Inc., and inserted into this data sheet. A dynamic change to the content on this page will not trigger a change to either the revision number or the content of the product data sheet. This dynamic page may be frequently modified.