DAC3282 (ACTIVE)

Dual-Channel, 16-Bit, 625-MSPS, 1x-2x Interpolating Digital-to-Analog Converter (DAC)

 

Description

The DAC3282 is a dual-channel 16-bit 625 MSPS digital-to-analog converter (DAC) with an 8-bit LVDS input data bus with on-chip termination, optional 2x interpolation filter, and internal voltage reference. The DAC3282 offers superior linearity, noise and crosstalk performance.

Input data can be interpolated by 2x through an on-chip interpolating FIR filter with over 85 dB of stop-band attenuation. Multiple DAC3282 devices can be fully synchronized.

The DAC3282 allows either a complex or real output. An optional coarse mixer in complex mode provides frequency upconversion and the dual DAC output produces a complex Hilbert Transform pair. The digital offset correction feature allows optimization of LO feed-through of an external quadrature modulator performing the final single sideband RF up- conversion.

The DAC3282 is characterized for operation over the entire industrial temperature range of –40°C to 85°C and is available in a 48-pin 7×7mm VQFN package.

Features

  • Dual, 16-Bit, 625 MSPS DACs
  • 8-Bit Input LVDS Data Bus
    • Byte-Wide Interleaved Data Load
    • 8 Sample Input FIFO
    • Optional Data Pattern Checker
  • Multi-DAC Synchronization
  • Optional 2x Interpolation Filter
  • Zero-IF Sinc Correction Filter
  • Fs/2 and ± Fs/4 Coarse Mixer
  • Digital Offset Adjustment for LO Correction
  • Temperature Sensor
  • 3- or 4-Wire Serial Control Interface
  • On Chip 1.2-V reference
  • Differential Scalable Output: 2 to 20 mA
  • Low Power: 950 mW at 625 MSPS, 845 mW at
    500 MHz, Full Operating Conditions
  • Space Saving Package: 48-pin 7×7mm VQFN
  • APPLICATIONS
    • Cellular Base Stations
    • Diversity Transmit
    • Wideband Communications
    • Digital Synthesis

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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
DAC3282 DAC3283
16    16   
625    800   
2    2   
Parallel LVDS    Parallel LVDS   
83    83   
1.8, 3.3    1.8, 3.3   
950    1150   
-40 to 85    -40 to 85   
VQFN    VQFN   
48VQFN: 49 mm2: 7 x 7(VQFN)    48VQFN: 49 mm2: 7 x 7(VQFN)   
Catalog    Catalog   
1x
2x   
1x
2x
4x   
Current Sink    Current Sink   
20    20   
2    2   
Differential    Differential   
Int    Int