DAC900-Q1 Datasheet, PDF (1/26 Pages) Texas Instruments – 10-BIT 165-MSPS DIGITAL-TO-ANALOG CONVERTER

DAC900-Q1
www.ti.com
10-BIT 165-MSPS DIGITAL-TO-ANALOG CONVERTER
Check for Samples: DAC900-Q1
SBAS505 – JUNE 2010
FEATURES
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• Qualified for Automotive Applications
• Single +5V OR +3V Operation
• High SFDR: 5MHz Output at 100MSPS: 68dBc
• Low Glitch: 3pV-s
• Low Power: 170mW at +5V
• Internal Reference: Optional External
Reference Adjustable Full-Scale Range
Multiplying Option
• Latch-Up Performance Meets 100 mA
Per JESD 78, Class I
APPLICATIONS
• Communication Transmit Channels
– WLL, Cellular Base Station
– Digital Microwave Links
– Cable Modems
• Waveform Generation
– Direct Digital Synthesis (DDS)
– Arbitrary Waveform Generation (ARB)
• Medical/Ultrasound
• High-Speed Instrumentation and Control
• Video, Digital TV
DESCRIPTION
The DAC900 is a high-speed, Digital-to-Analog Converter (DAC) offering a 10-bit resolution option within the
SpeedPlus family of high-performance converters. Featuring pin compatibility among family members, the
DAC908, DAC902, and DAC904 provide a component selection option to an 8-, 12-, and 14-bit resolution,
respectively. All models within this family of DACs support update rates in excess of 165MSPS with excellent
dynamic performance, and are especially suited to fulfill the demands of a variety of applications.
The advanced segmentation architecture of the DAC900 is optimized to provide a high Spurious-Free Dynamic
Range (SFDR) for single-tone, as well as for multi-tone signals—essential when used for the transmit signal path
of communication systems.
The DAC900 has a high impedance (200kΩ) current output with a nominal range of 20mA and an output
compliance of up to 1.25V. The differential outputs allow for both a differential or singleended analog signal
interface. The close matching of the current outputs ensures superior dynamic performance in the differential
configuration, which can be implemented with a transformer.
Utilizing a small geometry CMOS process, the monolithic DAC900 can be operated on a wide, single-supply
range of +2.7V to +5.5V. Its low power consumption allows for use in portable and batteryoperated systems.
Further optimization can be realized by lowering the output current with the adjustable full-scale option.
For noncontinuous operation of the DAC900, a power-down mode results in only 45mW of standby power.
The DAC900 comes with an integrated 1.24V bandgap reference and edge-triggered input latches, offering a
complete converter solution. Both +3V and +5V CMOS logic families can be interfaced to the DAC900.
The reference structure of the DAC900 allows for additional flexibility by utilizing the on-chip reference, or
applying an external reference. The full-scale output current can be adjusted over a span of 2mA to 20mA, with
one external resistor, while maintaining the specified dynamic performance.
The DAC900 is available in a TSSOP-28 (PW) package.
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated