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MAX5250
低功耗、四路、10位、电压输出DAC,串行接口

+5V DAC,可配置输出,提供灵活的输出摆幅设置


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状态
状况:生产中。

概述
完整的数据资料 (PDF, 768kB)
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The +5V MAX5250 combines four low-power, voltage-output, 10-bit digital-to-analog converters (DACs) and four precision output amplifiers in a space-saving, 20-pin package. In addition to the four voltage outputs, each amplifier's negative input is also available to the user. This facilitates specific gain configurations, remote sensing, and high output drive capacity, making the MAX5250 ideal for industrial-process-control applications. Other features include software shutdown, hardware shutdown lockout, an active-low reset that clears all registers and DACs to zero, a user-programmable logic output, and a serial-data output.

Each DAC has a double-buffered input organized as an input register followed by a DAC register. A 16-bit serial word loads data into each input/DAC register. The 3-wire serial interface is compatible with SPI™/QSPI™ and Microwire™. It allows the input and DAC registers to be updated independently or simultaneously with a single software command. All logic inputs are TTL/CMOS-logic compatible.

关键特性   应用/使用
  • Four 10-Bit DACs with Configurable Output Amplifiers
  • +5V Single-Supply Operation
  • Low Supply Current: 0.85mA Normal Operation 10µA Shutdown Mode
  • Available in 20-Pin SSOP and DIP Packages
  • Power-On Reset Clears all Registers and DACs to Zero
  • SPI/QSPI and Microwire Compatible
  • Simultaneous or Independent Control of DACs through 3-Wire Serial Interface
  • User-Programmable Digital Output
  • Schmitt-Trigger Inputs for Direct Optocoupler Interface
  • 12-Bit Upgrade Available: MAX525

 
  • 自动测试设备(ATE)
  • 数字增益与失调调节
  • 工业过程控制
  • 微处理器控制系统
  • 运动控制
  • 远端工业控制

    Key Specifications:  Precision DACs (4-12 Bits)
    Part Number Resolution Bits Channels Output Type Reference INL
    (±LSB)
    Interface Supply Range
    (V)
    Supply Range
    (V)
    Oper. Temp.
    (°C)
    Price
    max min max See Notes
    MAX5250A  10 4 Voltage- Buffered Ext. 0.5 Serial - SPI 4.5 5.5
    -55 to +125
    -40 to +85
    0 to +70
    $6.44 @1k
    MAX5250B  1 $4.95 @1k
    查看所有Precision DACs (4-12 Bits) (261)

    图表
    MAX5250:功能原理框图
    功能原理框图

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    参考文献: 19-1171; Rev. 1; 2002-12-19
    本页最后一次更新: 2008-09-26


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