DAC5662A Dual-Channel, 12-Bit, 275-MSPS Digital-to-Analog Converter (DAC) | TI.com

DAC5662A (ACTIVE)

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

Dual-Channel, 12-Bit, 275-MSPS Digital-to-Analog Converter (DAC) - DAC5662A
 

Description

The DAC5662A 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 DAC5662A 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 DAC5662A has two 12-bit parallel input ports with separate clocks and data latches. For flexibility, the DAC5662A also supports multiplexed data for each DAC on one port when operating in the interleaved mode.

The DAC5662A 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 DAC5662A is available in a 48-pin thin quad FlatPack (TQFP). Pin compatibility between family members provides 12-bit (DAC5662A) and 14-bit (DAC5672) resolution. Furthermore, the DAC5662A 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 - 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)

 
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
DAC5662A DAC5652 DAC5652A DAC5662 DAC5672 DAC5672A
275     275     275     275     275     275    
Low Power     Low Power     Low Power     Low Power     Low Power     Low Power    
12     10     10     12     14     14    
2     2     2     2     2     2    
Parallel CMOS     Parallel CMOS     Parallel CMOS     Parallel CMOS     Parallel CMOS     Parallel CMOS    
85     80     80     81     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 | 48     TQFP | 48     TQFP | 48
VQFN | 48    
TQFP | 48     TQFP | 48     TQFP | 48    
48TQFP: 81 mm2: 9 x 9 (TQFP | 48)     48TQFP: 81 mm2: 9 x 9 (TQFP | 48)     48TQFP: 81 mm2: 9 x 9 (TQFP | 48)
48VQFN: 36 mm2: 6 x 6 (VQFN | 48)    
48TQFP: 81 mm2: 9 x 9 (TQFP | 48)     48TQFP: 81 mm2: 9 x 9 (TQFP | 48)     48TQFP: 81 mm2: 9 x 9 (TQFP | 48)    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
1x     1x     1x     1x     1x     1x    
Current Source     Current Source     Current Source     Current Source     Current Source     Current Source    
Differential     Differential     Differential     Differential     Differential     Differential    
Ext     Ext
Int    
Ext
Int    
Ext     Int     Int