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MAX551：+3V/+5V、12位、串行、乘法DAC，10引脚µMAX封装

单通道、串行、电流输出DAC，采用µMAX封装

The MAX551/MAX552 are 12-bit, current-output, 4-quadrant multiplying digital-to-analog converters (DACs). These devices are capable of providing unipolar or bipolar outputs when operating from either a single +5V (MAX551) or +3V (MAX552) power supply. An internal power-on-reset circuit clears all DAC registers on power-up, setting the DAC output voltage to 0V. The SPI™/QSPI™ and MICROWIRE™-compatible 3-wire serial interface saves board space and reduces power dissipation compared with parallel-interface devices. The MAX551/MAX552 feature double-buffered interface logic with a 12-bit input register and a 12-bit DAC register. Data in the DAC register sets the DAC output voltage. Data is loaded into the input register through the serial interface. The active-low LOAD input transfers data from the input register to the DAC register, updating the DAC output voltage. The MAX551/MAX552 are available in an 8-pin DIP package or a space-saving 10-pin µMAX package. The µMAX package provides an asynchronous clear (CLR-bar) input that clears all DAC registers when pulled to GND, setting the output voltage to 0V.

关键特性 Single-Supply Operation: +4.5V to +5.25V (MAX551) +2.7V to +3.6V (MAX552) 12.5MHz 3-Wire Serial Interface SPI/QSPI and MICROWIRE Compatible Power-On Reset Clears DAC Output to Zero Asynchronous Clear Input Clears DAC Output to Zero Voltage Mode or Bipolar Mode Operation with a Single Power Supply Schmitt-Trigger Digital Inputs for Direct Optocoupler Interface 0.4µA Supply Current 10-Pin µMAX Package

MAX551、MAX552：功能原理框图 应用 µP控制系统 自动校准 数控滤波器 增益调节 运动控制系统 过程控制I/O板 可编程放大器/衰减器 变送器驱动器

数据手册DataSheet

关键参数

技术资料

• Damage from a Lightning Bolt or a Spark—It Depends on How Tall You Are!
• How Signal Chains and PLCs Impact Our Lives
• Selectable-Range Current Loop

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