DAC2904 Dual-Channel, 14-Bit, 125-MSPS Digital-to-Analog Converter (DAC) | TI.com

DAC2904 (ACTIVE)

Dual-Channel, 14-Bit, 125-MSPS Digital-to-Analog Converter (DAC)

 

Description

The DAC2904 is a monolithic, 14-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 DAC2904 offers exceptional dynamic performance, and enables the generation of very-high output frequencies suitable for “Direct IF” applications. The DAC2904 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 DAC2904 combines high dynamic performance with a high update 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 AD9767 dual DAC.
  • Gain matching is typically 0.5% of full-scale, and offset matching is specified at 0.02% max.
  • The DAC2904 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 DAC2904 has an internal reference circuit, and allows use in a multiplying configuration.

The DAC2904 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: 78dB at fOUT = 10MHz
  • LOW GLITCH: 2pV-s
  • 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)

 
Sample / Update Rate (MSPS)
Features
Resolution (Bits)
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 type
Reference: type
DAC2904 DAC2900 DAC2902 DAC900 DAC900-Q1 DAC902 DAC904 DAC908
125     125     125     200     200     200     200     200    
Low Power     Low Power     Low Power     Low Power     Low Power     Low Power     Low Power     Low Power    
14     10     12     10     10     12     14     8    
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
5.0    
3.3
5.0    
3.3
5.0    
3.0
5.0    
3.3
5.0    
3.0
5.0    
3.0
5.0    
3.0
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 | 48     TQFP | 48     TQFP | 48     SOIC | 28
TSSOP | 28    
TSSOP | 28     SOIC | 28
TSSOP | 28    
SOIC | 28
TSSOP | 28    
SOIC | 28
TSSOP | 28    
48TQFP: 81 mm2: 9 x 9 (TQFP | 48)     48TQFP: 81 mm2: 9 x 9 (TQFP | 48)     48TQFP: 81 mm2: 9 x 9 (TQFP | 48)     28SOIC: 184 mm2: 10.3 x 17.9 (SOIC | 28)
28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)    
28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)     28SOIC: 184 mm2: 10.3 x 17.9 (SOIC | 28)
28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)    
28SOIC: 184 mm2: 10.3 x 17.9 (SOIC | 28)
28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)    
28SOIC: 184 mm2: 10.3 x 17.9 (SOIC | 28)
28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)    
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    
Differential     Differential     Differential     Differential     Differential     Differential     Differential     Differential    
Ext
Int    
Ext
Int    
Ext
Int    
Ext
Int    
Ext
Int