DAC900-Q1

www.ti.com

SBAS505 – JUNE 2010

10-BIT 165-MSPS DIGITAL-TO-ANALOG CONVERTER

Check for Samples: DAC900-Q1

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FEATURES

APPLICATIONS

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Communication Transmit Channels

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Qualified for Automotive Applications

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WLL, Cellular Base Station

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Single +5V OR +3V Operation

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Digital Microwave Links

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High SFDR: 5MHz Output at 100MSPS: 68dBc

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Cable Modems

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Low Glitch: 3pV-s

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Waveform Generation

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Low Power: 170mW at +5V

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Direct Digital Synthesis (DDS)

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Internal Reference: Optional External

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Arbitrary Waveform Generation (ARB)

Reference Adjustable Full-Scale Range

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Medical/Ultrasound

Multiplying Option

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High-Speed Instrumentation and Control

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Latch-Up Performance Meets 100 mA

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Video, Digital TV

Per JESD 78, Class I

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 (200k

Ω) 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.

Copyright © 2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.