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+3V/+5V、串行输入、电压输出、16位DAC

产品详情

主要特征

应用/用途

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 16
# Channels 1
Interface Serial - SPI
Output Type Voltage- Unbuffered
Reference Ext.
INL (±LSB) (max) 2
4
Supply Range (V) (min) 4.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.2
Settling Time (µs) (typ) 1
Package/Pins UMAX/8
Oper. Temp. (°C) -40 to +85
0 to +70
Budgetary
Price (See Notes)
12.47
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参量

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 16
# Channels 1
Interface Serial - SPI
Output Type Voltage- Unbuffered
Reference Ext.
INL (±LSB) (max) 2
4
Supply Range (V) (min) 4.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.2
Settling Time (µs) (typ) 1
Package/Pins UMAX/8
Oper. Temp. (°C) -40 to +85
0 to +70
Budgetary
Price (See Notes)
12.47

主要特征

  • 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 (MAX5441/MAX5442) or +3V (MAX5443/MAX5444) Single-Supply Operation
  • Full 16-Bit Performance Without Adjustments
  • Unbuffered Voltage Output Directly Drives 60kΩ Loads
  • Power-On Reset Circuit Clears DAC Output to Code 0 (MAX5441/MAX5443) or Code 32768 (MAX5442/MAX5444)
  • Schmitt-Trigger Inputs for Direct Optocoupler Interface
  • Asynchronous Active-Low CLR

应用/用途

  • 自动测试设备(ATE)
  • 数据采集
  • 高分辨率失调与增益调节
  • 工业过程控制

描述

The MAX5441–MAX5444 are serial-input, voltage-output, 16-bit digital-to-analog converters (DACs) in tiny µMAX® packages, 50% smaller than comparable DACs in 8-pin SOs. They operate from low +3V (MAX5443/MAX5444) or +5V (MAX5441/MAX5442) single supplies. They provide 16-bit performance (±2 LSB INL and ±1 LSB DNL) over temperature without any adjustments. Unbuffered DAC outputs result in a low supply current of 120µA and a low offset error of 2 LSB.

The DAC output ranges from 0 to VREF. For bipolar operation, matched scaling resistors are provided in the MAX5442/MAX5444 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 (MAX5441/MAX5443) or code 32768 (MAX5442 /MAX5444) when power is initially applied.

A logic low on active-low CLR asynchronously clears the DAC output to code 0 (MAX5441/MAX5443) or code 32768 (MAX5442/MAX5444) independent of the serial interface.

The MAX5441/MAX5443 are available in 8-pin µMAX packages. The MAX5442/MAX5444 are available in 10-pin µMAX packages.

简化框图

MAX5441、MAX5442、MAX5443、MAX5444:功能原理框图 MAX5441、MAX5442、MAX5443、MAX5444:功能原理框图 Zoom icon

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Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心