DAC3282 Dual-Channel, 16-Bit, 625-MSPS, 1x-2x Interpolating Digital-to-Analog Converter (DAC) | TI.com

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

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