DAC5681 16-Bit, 1.0-GSPS Digital-to-Analog Converter (DAC) | TI.com

DAC5681 (ACTIVE) 16-Bit, 1.0-GSPS Digital-to-Analog Converter (DAC)

 

Description

The DAC5681 is a 16-bit 1.0 GSPS digital-to-analog converter (DAC) with wideband LVDS data input and internal voltage reference. The DAC5681 offers superior linearity and noise performance.

The DAC5681 integrates a wideband LVDS port with on-chip termination, providing full 1.0 GSPS data transfer into the DAC and lower EMI than traditional CMOS data interfaces. An on-chip delay lock loop (DLL) simplifies LVDS interfacing by providing skew control for the LVDS input data clock.

The current-steering architecture of the DAC5681 consists of a segmented array of current sinking switches directing up to 20mA of full-scale current to complementary output nodes. An accurate on-chip voltage reference is temperature-compensated and delivers a stable 1.2-V reference voltage. Optionally, an external reference may be used.

The DAC5681 is characterized for operation over the industrial temperature range of –40°C to 85°C and is available in a 64-pin QFN package. The device is pin upgradeable to the other members of the family: the DAC5681Z and DAC5682Z. The single-channel DAC5681Z and dual-channel DAC5682Z both provide optional 2x/4x interpolation and a clock multiplying PLL.

Features

  • 16-Bit Digital-to-Analog Converter (DAC)
  • 1.0 GSPS Update Rate
  • 16-Bit Wideband Input LVDS Data Bus
    • 8 Sample Input FIFO
    • On-Chip Delay Lock Loop
  • High Performance
    • 73 dBc ACLR WCDMA TM1 at 180 MHz
  • On Chip 1.2 V Reference
  • Differential Scalable Output: 2 to 20 mA
  • Package: 64-Pin 9 × 9 mm QFN

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
DAC5681 Order now 1000     Ultra High Speed     16     1     Parallel LVDS     81     1.8, 3.3     650     -40 to 85     VQFN | 64     64VQFN: 81 mm2: 9 x 9 (VQFN | 64)     Catalog     1x     Current Sink     Differential     Int    
DAC5681Z Order now 1000     Ultra High Speed     16     1     Parallel LVDS     81     1.8, 3.3     800     -40 to 85     VQFN | 64     64VQFN: 81 mm2: 9 x 9 (VQFN | 64)     Catalog     1x
2x
4x    
Current Sink     Differential     Int    
DAC5682Z Order now 1000     Ultra High Speed     16     2     Parallel LVDS     81     1.8,3.3     1300     -40 to 85     VQFN | 64     64VQFN: 81 mm2: 9 x 9 (VQFN | 64)     Catalog     1x
2x
4x    
Current Sink     Differential     Int