DAC5672A Dual-Channel, 14-Bit, 275-MSPS Digital-to-Analog Converter (DAC) | TI.com

DAC5672A (ACTIVE)

Dual-Channel, 14-Bit, 275-MSPS Digital-to-Analog Converter (DAC)

Dual-Channel, 14-Bit, 275-MSPS Digital-to-Analog Converter (DAC) - DAC5672A
 

Description

The DAC5672A device is a monolithic, dual-channel, 14-bit, high-speed DAC with on-chip voltage reference.

Operating with update rates of up to 275 MSPS, the DAC5672A offers exceptional dynamic performance, tight-gain, and offset matching characteristics that make the device well-suited in 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 DAC5672A has two, 14-bit, parallel input ports with separate clocks and data latches. For flexibility, the DAC5672A supports multiplexed data for each DAC on one port when operating in the interleaved mode.

The DAC5672A is specifically designed for a differential transformer-coupled output with a 50-Ω 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 DAC5672A is available in a 48-pin TQFP package. Pin compatibility between family members provides 12-bit (DAC5662) and 14-bit (DAC5672A) resolutions. Furthermore, the DAC5672A is pin compatible to the DAC2904 and AD9767 dual DACs. The device is characterized for operation over the industrial temperature range of –40°C to 85°C.

Features

  • 14-Bit Dual Transmit Digital-to-Analog Converter (DAC)
  • 275 MSPS Update Rate
  • Single-Supply: 3 V to 3.6 V
  • High Spurious-Free Dynamic Range (SFDR): 84 dBc at 5 MHz
  • High Third-Order Two-Tone Intermodulation (IMD3): 79 dBc at 15.1 MHz and 16.1 MHz
  • WCDMA Adjacent Channel Leakage Ratio (ACLR): 78 dB at Baseband
  • WCDMA ACLR: 73 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: 9 mW
  • Package: 48-Pin Thin-Quad Flat Pack (TQFP)

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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
DAC5672A DAC5652 DAC5652A DAC5662 DAC5662A DAC5672
275     275     275     275     275     275    
Low Power     Low Power     Low Power     Low Power     Low Power     Low Power    
14     10     10     12     12     14    
2     2     2     2     2     2    
Parallel CMOS     Parallel CMOS     Parallel CMOS     Parallel CMOS     Parallel CMOS     Parallel CMOS    
84     80     80     81     85     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    
Int     Ext
Int    
Ext
Int    
Ext     Ext     Int    

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