Dual-Channel, 16-Bit, 1.25-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC) - DAC3482

DAC3482 (ACTIVE)

Dual-Channel, 16-Bit, 1.25-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC)

 

Description

The DAC3482 is a very low power, high dynamic range, dual-channel, 16-bit digital-to-analog converter (DAC) with a sample rate as high as 1.25 GSPS.

The device includes features that simplify the design of complex transmit architectures: 2x to 16x digital interpolation filters with over 90 dB of stop-band attenuation simplify the data interface and reconstruction filters. A complex mixer allows flexible carrier placement. A high-performance low jitter clock multiplier simplifies clocking of the device without significant impact on the dynamic range. The digital Quadrature Modulator Correction (QMC) enables complete IQ compensation for gain, offset, phase, and group delay between channels in direct up-conversion applications.

Digital data is input to the device through a flexible LVDS data bus with on-chip termination. Data can be input either word-wide or byte-wide. The device includes a FIFO, data pattern checker and parity test to ease the input interface. The interface also allows full synchronization of multiple devices.

The device is characterized for operation over the entire industrial temperature range of –40°C to 85°C and is available in a very-small 88-pin 9x9mm WQFN-MR package or 196-ball 12x12mm NFBGA package.

Very low power, small size, superior crosstalk, high dynamic range, and features of the DAC3482 make it an ideal fit for today’s communication systems.

Features

  • Very Low Power: 900 mW at 1.25 GSPS, Full
    Operating Conditions
  • Multi-DAC Synchronization
  • Selectable 2x, 4x, 8x, 16x Interpolation Filter
    • Stop-Band Attenuation > 90 dBc
  • Flexible On-Chip Complex Mixing
    • Fine Mixer with 32-Bit NCO
    • Power Saving Coarse Mixer: ± n×Fs/8
  • High Performance, Low Jitter Clock Multiplying
    PLL
  • Digital I and Q Correction
    • Gain, Phase, Offset, and Group Delay
      Correction
  • Digital Inverse Sinc Filter
  • Flexible LVDS Input Data Bus
    • Word- or Byte-Wide Interface
    • 8 Sample Input FIFO
    • Data Pattern Checker
    • Parity Check
  • Temperature Sensor
  • Differential Scalable Output: 10 mA to 30 mA
  • Multiple Package Options: 88-Pin 9x9mm WQFN-
    MR and 196-ball 12mmx12mm NFBGA (GREEN /
    Pb-Free)

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

 
Internal PLL
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
DAC3482 DAC3484 DAC34H84 DAC34SH84
Yes    Yes    Yes    Yes   
16    16    16    16   
1250    1250    1250    1500   
2    4    4    4   
Parallel LVDS    Parallel LVDS    Parallel LVDS    Parallel LVDS   
82    82    82    80   
1.2, 3.3    1.2, 3.3    1.2, 3.3    1.3, 1.35, 3.3   
800    1200    1440    1448   
-40 to 85    -40 to 85    -40 to 85    -40 to 85   
NFBGA
WQFN-MR   
NFBGA
WQFN-MR   
NFBGA    NFBGA   
196NFBGA: 144 mm2: 12 x 12(NFBGA)
88WQFN-MR: 81 mm2: 9 x 9(WQFN-MR)   
196NFBGA: 144 mm2: 12 x 12(NFBGA)
88WQFN-MR: 81 mm2: 9 x 9(WQFN-MR)   
196NFBGA: 144 mm2: 12 x 12(NFBGA)    196NFBGA: 144 mm2: 12 x 12(NFBGA)   
Catalog    Catalog    Catalog    Catalog   
1x
2x
4x
8x
16x   
1x
2x
4x
8x
16x   
1x
2x
4x
8x
16x   
1x
2x
4x
8x
16x   
Current Source    Current Source    Current Source    Current Source   
30    30    30    30   
1    1    1    1   
Differential    Differential    Differential    Differential   
Int    Int    Int    Int