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

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Parametrics Compare all products in High Speed DACs (>10MSPS)

 
Resolution (Bits)
Sample / Update Rate (MSPS)
DAC Channels
Interface
SFDR (dB)
Supply Voltage(s) (V)
Power Consumption (Typ) (mW)
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Rating
Interpolation
Architecture
Output Range Max. (mA)
Output Range Min. (mA)
Output Type
Reference: Type
DAC904 DAC2900 DAC2902 DAC2904 DAC900 DAC900-Q1 DAC902 DAC908
14    10    12    14    10    10    12    8   
200    125    125    125    200    200    200    200   
1    2    2    2    1    1    1    1   
Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS   
68    80    80    80    68    68    67    67   
3.0 or 5.0    3.3 or 5.0    3.3 or 5.0    3.3 or 5.0    3.0 or 5.0    3.3 or 5.0    3.0 or 5.0    3.0 or 5.0   
170    310    310    310    170    170    170    170   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 125    -40 to 85    -40 to 85   
SOIC
TSSOP   
TQFP    TQFP    TQFP    SOIC
TSSOP   
TSSOP    SOIC
TSSOP   
SOIC
TSSOP   
28SOIC: 184 mm2: 10.3 x 17.9(SOIC)
28TSSOP: 62 mm2: 6.4 x 9.7(TSSOP)   
48TQFP: 81 mm2: 9 x 9(TQFP)    48TQFP: 81 mm2: 9 x 9(TQFP)    48TQFP: 81 mm2: 9 x 9(TQFP)    28SOIC: 184 mm2: 10.3 x 17.9(SOIC)
28TSSOP: 62 mm2: 6.4 x 9.7(TSSOP)   
28TSSOP: 62 mm2: 6.4 x 9.7(TSSOP)    28SOIC: 184 mm2: 10.3 x 17.9(SOIC)
28TSSOP: 62 mm2: 6.4 x 9.7(TSSOP)   
28SOIC: 184 mm2: 10.3 x 17.9(SOIC)
28TSSOP: 62 mm2: 6.4 x 9.7(TSSOP)   
Catalog    Catalog    Catalog    Catalog    Catalog    Automotive    Catalog    Catalog   
1x    1x    1x    1x    1x    1x    1x    1x   
Current Source    Current Source    Current Source    Current Source    Current Source    Current Source    Current Source    Current Source   
20    20    20    20    20    20    20    20   
2    2    2    2    2    2    2    2   
Differential    Differential    Differential    Differential    Differential    Differential    Differential    Differential   
Int
Ext   
Int
Ext   
Int
Ext   
Int
Ext   
Int
Ext   
Int
Ext   
Int
Ext   
Int
Ext