DAC8881 Single Channel 16-Bit, Low Noise, Voltage Output Digital-to-Analog Converter | TI.com

DAC8881 (ACTIVE)

Single Channel 16-Bit, Low Noise, Voltage Output Digital-to-Analog Converter

Single Channel 16-Bit, Low Noise, Voltage Output Digital-to-Analog Converter - DAC8881
 

Description

The DAC8881 is a 16-bit, single-channel, voltage-output digital-to-analog converter (DAC) that offers low-power operation and a flexible SPI serial interface. It also features 16-bit monotonicity, excellent linearity, and fast settling time. The on-chip precision output amplifier allows rail-to-rail output swing to be achieved over the full supply range of 2.7 V to 5.5 V.

The device supports a standard SPI serial interface capable of operating with input data clock frequencies up to 50 MHz. The DAC8881 requires an external reference voltage to set the output range of the DAC channel. A programmable power-on reset circuit is also incorporated into the device to ensure that the DAC output powers up at zero-scale or midscale, and remains there until a valid write command.

Additionally, the device has the capability to function in either unipolar straight binary or 2’s complement mode. The DAC8881 provides a power-down feature, accessed over the PDN pin, that reduces the current consumption to 25 µA at 5 V. Power consumption is 6 mW at 5 V, reducing to 125 µW in power-down mode.

The DAC8881 is available in a 4 x 4 mm QFN-24 package with a specified operating temperature range of –40°C to +105°C.

Features

  • Relative Accuracy: ±0.5 LSB
  • 16-Bit Monotonic Over Temperature Range
  • Low-Noise: 24nV/√Hz
  • Fast Settling: 5µs
  • On-Chip Output Buffer Amplifier with Rail-to-Rail Operation
  • Wide, Single Power Supply: +2.7V to +5.5V
  • DAC Loading Control
  • Selectable Power-On Reset to Zero-Scale or Midscale
  • Power-Down Mode
  • Unipolar Straight Binary or
    2’s Complement Input Mode
  • Fast SPI™ Interface with Schmitt-Triggered Inputs:
    Up To 50MHz, 1.8V/3V/5V Logic
  • Small Package: QFN-24, 4x4mm

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

 
Resolution (Bits)
DAC 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
DAC8881 DAC8830 DAC8831 DAC8832 DAC9881
16     16     16     16     18    
R-2R     R-2R     R-2R     R-2R     R-2R    
1     1     1     1     1    
SPI     SPI     SPI     SPI     SPI    
5.5     5.5     5.5     5.5     5.5    
0     0     0     0     0    
5     1     1     1     5    
Buffered Voltage     Unbuffered Voltage     Unbuffered Voltage     Unbuffered Voltage     Buffered Voltage    
Ext     Ext     Ext     Ext     Ext    
Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 105     -40 to 85     -40 to 85     -40 to 85     -40 to 105    
Reset to Mid-Scale
SDO    
N/A     N/A     N/A     Reset to Mid-Scale
SDO    

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