型号DAC8831
品牌
分类精密 DAC (≤10MSPS)
描述16 位、超低功耗、电压输出数模转换器
相关操作
产品概述

参数

Resolution (Bits) 16
Number of DAC channels 1
Interface type SPI
Output type Unbuffered Voltage
Settling time (µs) 1
Reference type Ext
Architecture R-2R
Rating Catalog
Output range (max) (mA/V) 5.5
Output range (min) (mA/V) 0
Sample/update rate (Msps) 2
Power consumption (typ) (mW) 0.015
Operating temperature range (°C) -40 to 85

封装 | 引脚 | 尺寸

SOIC (D) 14 51.9 mm² 8.65 x 6
VQFN (RGY) 14 12.25 mm² 3.5 x 3.5

特性

  • 16-Bit Resolution
  • 2.7 V to 5.5 V Single-Supply Operation
  • Very Low Power: 15 µW for 3 V Power
  • High Accuracy, INL: 1 LSB
  • Low Noise: 10 nV/Hz
  • Fast Settling: 1.0 µS
  • Fast SPI™ Interface, up to 50 MHz
  • Reset to Zero-Code
  • Schmitt-Trigger Inputs for Direct Optocoupler Interface
  • Industry-Standard Pin Configuration
  • APPLICATIONS
    • Portable Equipment
    • Automatic Test Equipment
    • Industrial Process Control
    • Data Acquisition Systems
    • Optical Networking

SPI, QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor Corp.
All other trademarks are the property of their respective owners.

说明

The DAC8830 and DAC8831 are single, 16-bit, serial-input, voltage-output digital-to-analog converters (DACs) operating from a single 3 V to 5 V power supply. These converters provide excellent linearity (1 LSB INL), low glitch, low noise, and fast settling (1.0 µS to 1/2 LSB of full-scale output) over the specified temperature range of -40°C to +85°C. The output is unbuffered, which reduces the power consumption and the error introduced by the buffer.

These parts feature a standard high-speed (clock up to 50 MHz), 3 V or 5 V SPI serial interface to communicate with a DSP or microprocessor.

The DAC8830 output is 0 V to VREF. However, the DAC8831 provides bipolar output (±VREF) when working with an external buffer. The DAC8830 and DAC8831 are both reset to zero code after power up. For optimum performance, a set of Kelvin connections to external reference and analog ground input are provided on the DAC8831.

The DAC8830 is available in an SO-8 package, and the DAC8831 in an SO-14 package. Both have industry standard pinouts. The DAC8831 is also available in a QFN-14 package.