16-Bit, Single Channel, Digital-to-Analog Converter W/ Internal +10V Reference and Serial I/F - DAC7731

DAC7731 (ACTIVE)

16-Bit, Single Channel, Digital-to-Analog Converter W/ Internal +10V Reference and Serial I/F

Recommended alternative parts

  • DAC8580  -  Has a lower settling time and no internal reference
  • DAC8581  -  Has a lower settling time and no internal reference
  • DAC8801  -  14-bit device with lower settling time and no internal reference. Provides current output
  • DAC7811  -  12-bit device with lower settling time and no internal reference. Provides current output

Description

The DAC7731 is a 16-bit Digital-to-Analog Converter (DAC) which provides 16 bits of monotonic performance over the specified operating temperature range and offers a +10V internal reference. Designed for automatic test equipment and industrial process control applications, the DAC7731’s output swing can be configured in a ±10V, ±5V, or +10V range. The flexibility of the output configuration allows the DAC7731 to provide both unipolar and bipolar operation by pin strapping. The DAC7731 includes a high-speed output amplifier with a maximum settling time of 5uµs to ±0.003% FSR for a 20V full-scale change and only consumes 100mW (typical) of power.

The DAC7731 features a standard 3-wire, SPI-compatible serial interface with double buffering to allow asynchronous updates of the analog output as well as a serial data output line for daisy-chaining multiple DAC7731s. A user programmable reset control forces the DAC output to either min-scale (0000h) or mid-scale (8000h), overriding both the input and DAC register values. The DAC7731 is available in a SSOP-24 package and three performance grades specified to operate from –40°C to +85°C.

Features

  • LOW POWER: 150mW MAXIMUM
  • +10V INTERNAL REFERENCE
  • UNIPOLAR OR BIPOLAR OPERATION
  • SETTLING TIME: 5µs to ±0.003% FSR
  • 16-BIT MONOTINICITY, –40°C TO +85°C
  • ±10V, ±5V, OR +10V CONFIGURABLE VOLTAGE OUTPUT
  • RESET TO ZERO OR MID-SCALE
  • DOUBLE-BUFFERED DATA INPUT
  • DAISY-CHAIN FEATURE FOR MULTIPLE DAC7731s ON A SINGLE BUS
  • SMALL SSOP-24 PACKAGE
  • APPLICATIONS
    • PROCESS CONTROL
    • ATE PIN ELECTRONICS
    • CLOSED-LOOP SERVO CONTROL
    • MOTOR CONTROL
    • DATA ACQUISITION SYSTEMS

Note: Recommended Voltage Reference: REF02 and REF102

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Parametrics Compare all products in Precision DAC (=<10MSPS)

 
Resolution (Bits)
DAC: Channels
Architecture
Interface
Output Type
Output Range Min. (V or mA)
Output Range Max. (V or mA)
Settling Time (µs)
Reference: Type
Rating
Pin/Package
Approx. Price (US$)
Operating Temperature Range (C)
Special Features
DAC7731 DAC714 DAC7734 DAC8814
16     16     16     16    
1     1     4     4    
R-2R     R-2R     R-2R     Multiplying DAC    
Serial SPI     Serial SPI     Serial SPI     Serial SPI    
Buffered Voltage     Buffered Voltage     Buffered Voltage     Current    
-10     -10     -10     0    
10     10     10     2    
5     10     10     0.5    
Ext
Int    
Int     Ext     Ext    
Catalog     Catalog     Catalog     Catalog    
24SSOP     16SOIC     48SSOP     28SSOP    
8.61 | 1ku     14.50 | 1ku     31.45 | 1ku     16.95 | 1ku    
-40 to 85     -40 to 85     -40 to 85     -40 to 85    
Reset to Mid-Scale
SDO    
On-chip Offset and Gain Calibration
SDO    
Reset to Mid-Scale
SDO    
SDO    

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