Dual-Channel, 12-Bit, 275-MSPS Digital-to-Analog Converter (DAC) - DAC5662

DAC5662 (ACTIVE)

Dual-Channel, 12-Bit, 275-MSPS Digital-to-Analog Converter (DAC)

 

Description

The DAC5662 is a monolithic, dual-channel 12-bit high-speed digital-to-analog converter (DAC) with on-chip voltage reference.

Operating with update rates of up to 275 MSPS, the DAC5662 offers exceptional dynamic performance and tight-gain and offset matching, characteristics that make it suitable in either I/Q baseband or direct IF communication applications.

Each DAC has a high-impedance differential current output, suitable for single-ended or differential analog-output configurations. External resistors allow scaling the full-scale output current for each DAC separately or together, typically between 2 mA and 20 mA. 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 DAC5662 has two 12-bit parallel input ports with separate clocks and data latches. For flexibility, the DAC5662 also supports multiplexed data for each DAC on one port when operating in the interleaved mode.

The DAC5662 has been specifically designed for a differential transformer coupled output with a 50- doubly terminated load. For a 20-mA full-scale output current a 4:1 impedance ratio (resulting in an output power of 4 dBm) and 1:1 impedance ratio transformer (-2 dBm output power) are supported.

The DAC5662 is available in a 48-pin thin quad FlatPack (TQFP). Pin compatibility between family members provides 12-bit (DAC5662) and 14-bit (DAC5672) resolution. Furthermore, the DAC5662 is pin compatible to the DAC2902 and AD9765 dual DACs. The device is characterized for operation over the industrial temperature range of -40°C to 85°C.

Features

  • 12-Bit Dual Transmit DAC
  • 275 MSPS Update Rate
  • Single Supply: 3 V to 3.6 V
  • High SFDR: 85 dBc at 5 MHz
  • High IMD3: 78 dBc at 15.1 and 16.1 MHz
  • WCDMA ACLR: 70 dB at 30.72 MHz
  • Independent or Single Resistor Gain Control
  • Dual or Interleaved Data
  • On-Chip 1.2-V Reference
  • Low Power: 330 mW
  • Power-Down Mode: 15 mW
  • Package: 48-Pin TQFP
  • APPLICATIONS
    • Cellular Base Transceiver Station Transmit Channel
      • CDMA: W-CDMA, CDMA2000, IS-95
      • TDMA: GSM, IS-136, EDGE/UWC-136
    • Medical/Test Instrumentation
    • Arbitrary Waveform Generators (ARB)
    • Direct Digital Synthesis (DDS)
    • Cable Modem Termination System (CMTS)

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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
DAC5662 DAC5652 DAC5652A DAC5662A DAC5672 DAC5672A
12    10    10    12    14    14   
275    275    275    275    275    275   
2    2    2    2    2    2   
Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS    Parallel CMOS   
81    80    80    85    84    84   
3.3    3.3    3.3    3.3    3.3    3.3   
330    290    290    330    330    330   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
TQFP    TQFP    TQFP    TQFP    TQFP    TQFP   
48TQFP: 81 mm2: 9 x 9(TQFP)    48TQFP: 81 mm2: 9 x 9(TQFP)    48TQFP: 81 mm2: 9 x 9(TQFP)    48TQFP: 81 mm2: 9 x 9(TQFP)    48TQFP: 81 mm2: 9 x 9(TQFP)    48TQFP: 81 mm2: 9 x 9(TQFP)   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
1x    1x    1x    1x    1x    1x   
Current Source    Current Source    Current Source    Current Source    Current Source    Current Source   
20    20    20    5.5    20    20   
2    2    2    0    2    2   
Differential    Differential    Differential    Differential    Differential    Differential   
Ext    Int
Ext   
Int
Ext   
Ext    Int    Int   

Other qualified versions of DAC5662

Version Part Number Definition
Enhanced Product DAC5662-EP Supports Defense, Aerospace and Medical Applications