Dual-Channel, 12-Bit, 125-MSPS Digital-to-Analog Converter (DAC) - DAC2902

DAC2902 (ACTIVE)

Dual-Channel, 12-Bit, 125-MSPS Digital-to-Analog Converter (DAC)

 

Description

The DAC2902 is a monolithic, 12-bit, dual-channel, high-speed Digital-to-Analog Converter (DAC), and is optimized to provide high dynamic performance while dissipating only 310mW.

Operating with high update rates of up to 125MSPS, the DAC2902 offers exceptional dynamic performance, and enables the generation of very-high output frequencies suitable for "Direct IF" applications. The DAC2902 has been optimized for communications applications in which separate I and Q data are processed while maintaining tight gain and offset matching.

Each DAC has a high-impedance differential-current output, suitable for single-ended or differential analog-output configurations.

The DAC2902 combines high dynamic performance with a high throughput rate to create a cost-effective solution for a wide variety of waveform-synthesis applications:

  • Pin compatibility between family members provides 10-bit (DAC2900), 12-bit (DAC2902), and 14-bit (DAC2904) resolution.
  • Pin compatible to the AD9765 dual DAC.
  • Gain matching is typically 0.5% of full-scale, and offset matching is specified at 0.02% max.
  • The DAC2902 utilizes an advanced CMOS process; the segmented architecture minimizes output-glitch energy, and maximizes the dynamic performance.
  • All digital inputs are +3.3V and +5V logic compatible. The DAC2902 has an internal reference circuit, and allows use of an external reference.
  • The DAC2902 is available in a TQFP-48 package, and is specified over the extended industrial temperature range of –40°C to +85°C.

Features

  • 125MSPS UPDATE RATE
  • SINGLE SUPPLY: +3.3V or +5V
  • HIGH SFDR: 70dB at fOUT = 20MHz
  • LOW GLITCH: 2pVs
  • LOW POWER: 310mW
  • INTERNAL REFERENCE
  • POWER-DOWN MODE: 23mW
  • APPLICATIONS
    • COMMUNICATIONS:
          Base Stations, WLL, WLAN
          Baseband I/Q Modulation
    • MEDICAL/TEST INSTRUMENTATION
    • ARBITRARY WAVEFORM GENERATORS (ARB)
    • DIRECT DIGITAL SYNTHESIS (DDS)

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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
DAC2902 DAC2900 DAC2904 DAC900 DAC900-Q1 DAC902 DAC904 DAC908
12    10    14    10    10    12    14    8   
125    125    125    200    200    200    200    200   
2    2    2    1    1    1    1    1   
Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS   
80    80    80    68    68    67    68    67   
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    3.0 or 5.0   
310    310    310    170    170    170    170    170   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 125    -40 to 85    -40 to 85    -40 to 85   
TQFP    TQFP    TQFP    SOIC
TSSOP   
TSSOP    SOIC
TSSOP   
SOIC
TSSOP   
SOIC
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)   
28SOIC: 184 mm2: 10.3 x 17.9(SOIC)
28TSSOP: 62 mm2: 6.4 x 9.7(TSSOP)   
Catalog    Catalog    Catalog    Catalog    Automotive    Catalog    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