DAC7811 12-bit, single-channel, serial input multiplying DAC with 0.2us settling time | TI.com

DAC7811 (ACTIVE) 12-bit, single-channel, serial input multiplying DAC with 0.2us settling time

 

Description

The DAC7811 is a CMOS, 12-bit, current output digital-to-analog converter (DAC). This device operates from a 2.7-V to 5.5-V power supply, making it suitable for battery-powered and many other applications.

This DAC uses a double-buffered 3-wire serial interface that is compatible with SPI, QSPI™, MICROWIRE, and most DSP interface standards. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple devices are used. Data readback allows the user to read the contents of the DAC register via the SDO pin. On power-up, the internal shift register and latches are filled with zeroes and the DAC outputs are at zero scale.

The DAC7811 offers excellent 4-quadrant multiplication characteristics, with large signal multiplying bandwidth of 10 MHz. The applied external reference input voltage (VREF) determines the full-scale output current. An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.

The DAC7811 is available in a 10-lead VSSOP package.

Features

  • 2.7-V to 5.5-V Supply Operation
  • 50-MHz Serial Interface
  • 10-MHz Multiplying Bandwidth
  • ±15-V Reference Input
  • Low Glitch Energy: 5 nV-s
  • Extended Temperature Range:
    –40°C to +125°C
  • 10-Pin VSSOP Package
  • 12-Bit Monotonic
  • 4-Quadrant Multiplication
  • Power-On Reset With Brownout Detection
  • Daisy-Chain Mode
  • Readback Function
  • Industry-Standard Pin Configuration

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Parametrics

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Part number Order Resolution (Bits) Architecture DAC channels Interface Output range (Max) (mA/V) Output range (Min) (mA/V) Settling time (µs) Output type Reference: type Rating Operating temperature range (C) Features
DAC7811 Order now 12     Multiplying DAC     1     SPI     1     0     0.2     Unbuffered Current     Ext     Catalog     -40 to 125     SDO    
DAC7615 Samples not available 12     R-2R     4     SPI     2.5     -2.5     10     Buffered Voltage     Ext     Catalog     -40 to 85        
DAC7800 Samples not available 12     Multiplying DAC     2     SPI     2     -2     0.8     Unbuffered Current     Ext     Catalog     -40 to 85        
DAC8043 Order now 12     Multiplying DAC     1     SPI     2     -2     1     Unbuffered Current     Ext     Catalog     -40 to 85        
DAC8811 Order now 16     Multiplying DAC     1     SPI     2     0     0.5     Unbuffered Current     Ext     Catalog     -40 to 105     Small Size