DAC904

(ACTIVE) 14-Bit 165-MSPS Digital-to-Analog Converter (DAC)

Description

The DAC904 is a high-speed, Digital-to-Analog Converter (DAC) offering a 14-bit resolution option within the family of high-performance converters. Featuring pin compatibility among family members, the DAC908, DAC900, and DAC902 provide a component selection option to an 8-, 10-, and 12-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 DAC904 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 DAC904 has a high impedance (200k) 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 single-ended 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 DAC904 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 battery-operated systems. Further optimization can be realized by lowering the output current with the adjustable full-scale option.

For noncontinuous operation of the DAC904, a power-down mode results in only 45mW of standby power.

The DAC904 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 DAC904.

The reference structure of the DAC904 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 2-20mA, with one external resistor, while maintaining the specified dynamic performance.

The DAC904 is available in SO-28 and TSSOP-28 packages.

Features

  • SINGLE +5V OR +3V OPERATION
  • HIGH SFDR: 20MHz Output at 100MSPS: 64dBc
  • LOW GLITCH: 3pV-s
  • LOW POWER: 170mW at +5V
  • INTERNAL REFERENCE:
         Optional Ext. Reference
         Adjustable Full-Scale Range
         Multiplying Option
  • 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

Parametrics

Sample / Update Rate (MSPS) 200    
Features Low Power    
Resolution (Bits) 14    
DAC Channels 1    
Interface Parallel CMOS    
SFDR (dB) 68    
Supply Voltage(s) (V) 3.0^5.0    
Power Consumption (Typ) (mW) 170    
Operating Temperature Range (C) -40 to 85    
Package Group SOIC|28^TSSOP|28    
Package Size: mm2:W x L (PKG) 28SOIC: 184 mm2: 10.3 x 17.9 (SOIC|28)^28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP|28)    
Rating Catalog    
Interpolation 1x    
Architecture Current Source    
Output Type Differential    
Reference: Type Ext^Int    

Companion Products

Technical Documents

Datasheet (1)

Application notes (2)

User guides (2)

Selection guides (1)

Design files (1)

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