DAC8881 (ACTIVE)

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

 

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 2.7V to 5.5V.

The device supports a standard SPI serial interface capable of operating with input data clock frequencies up to 50MHz. 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 25µA at 5V. Power consumption is 6mW at 5V, reducing to 125µW in power-down mode.

The DAC8881 is available in a 4x4mm 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 withRail-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
  • APPLICATIONS
    • Industrial Process Control
    • Data Acquisition Systems
    • Automatic Test Equipment
    • Communications
    • Optical Networking

DSP is a trademark of Texas Instruments.
SPI, QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor.
All other trademarks are the property of their respective owners.

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

 
Resolution (Bits)
DAC Channels
DAC Architecture
Interface
Output Type
Output Range Min. (mA/V)
Output Range Max. (mA/V)
Settling Time (µs)
Reference: Type
Rating
Pin/Package
Operating Temperature Range (C)
Features
DAC8881 DAC8830 DAC8831 DAC8832 DAC9881
16    16    16    16    18   
1    1    1    1    1   
R-2R    R-2R    R-2R    R-2R    R-2R   
SPI    SPI    SPI    SPI    SPI   
Buffered Voltage    Unbuffered Voltage    Unbuffered Voltage    Unbuffered Voltage    Buffered Voltage   
0    0    0    0    0   
5.5    5.5    5.5    5.5    5.5   
5    1    1    1    5   
Ext    Ext    Ext    Ext    Ext   
Catalog    Catalog    Catalog    Catalog    Catalog   
24VQFN    8SOIC    14SOIC
14VQFN   
14VQFN    24VQFN   
-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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