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Maxim产品 - MAX5142介绍

MAX5142 - +3V/+5V、串行输入、电压输出、14位DAC

MAX5142是Maxim美信半导体公司的一款数据转换器和采样-保持电路产品，MAX5142是+3V/+5V、串行输入、电压输出、14位DAC，本站介绍了MAX5142的封装应用图解、特点和优点、功能等，并给出了与MAX5142相关的Maxim元器件型号供参考。

MAX5142 - +3V/+5V、串行输入、电压输出、14位DAC - 数据转换器和采样-保持电路 - 超小尺寸14位DAC，采用µMAX封装，提供低功耗解决方案 - 美信半导体

产品概述

The MAX5141—MAX5144 are serial-input, voltage-output, 14-bit digital-to-analog converters (DACs) in tiny µMAX® packages, 50% smaller than comparable DACs in an 8-pin SO. They operate from low +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142) single supplies. They provide 14-bit performance (±1 LSB INL and DNL) over temperature without any adjustments. The DAC output is unbuffered, resulting in a low supply current of 120µA and a low offset error of 2 LSBs.

The DAC output range is 0V to VREF. For bipolar operation, matched scaling resistors are provided in the MAX5142/MAX5144 for use with an external precision op amp (such as the MAX400), generating a ±VREF output swing.A 16-bit serial word is used to load data into the DAC latch. The 25MHz, 3-wire serial interface is compatible with SPI™/QSPI™/MICROWIRE™, and can interface directly with optocouplers for applications requiring isolation. A power-on reset circuit clears the DAC output to code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/MAX5144) when power is initially applied.A logic low on active-low CLR asynchronously clears the DAC output to code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/MAX5144), independent of the serial interface.The MAX5141/MAX5143 are available in 8-pin µMAX packages and the MAX5142/MAX5144 are available in 10-pin µMAX packages.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Ultra-Small (3mm x 5mm) 8-Pin µMAX Package
  • Low 120µA Supply Current
  • Fast 1µs Settling Time
  • 25MHz SPI/QSPI/MICROWIRE-Compatible Serial Interface
  • VREF Range Extends to VDD
  • +5V (MAX5141/MAX5142) or +3V (MAX5143/MAX5144) Single-Supply Operation
  • Full 14-Bit Performance Without Adjustments
  • Unbuffered Voltage Output Directly Drives 60kΩ Loads
  • Power-On Reset Circuit Clears DAC Output to Code 0 (MAX5141/MAX5143) or Code 8192 (MAX5142/MAX5144)
  • Schmitt-Trigger Inputs for Direct Optocoupler Interface
  • Asynchronous Active-Low CLR
    • 热门应用
  • 自动测试设备(ATE)
  • 数据采集
  • 高分辨率与增益调节
  • 工业过程控制
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