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MAX520：四/八通道、2线串行8位DAC，满摆幅输出

兼容于I²C、SMBus™串行接口

The MAX520/MAX521 are quad/octal, 8-bit voltage-output digital-to-analog converters (DACs) with simple 2-wire serial interfaces that allow communication between multiple devices. They operate from a single +5V supply and their reference input range includes both supply rails. The MAX521 includes rail-to-rail output buffer amplifiers for reduced system size and component count when driving loads. The MAX520's unbuffered voltage outputs reduce the device's total supply current to 4µA and provide increased accuracy at low output currents. The MAX520/MAX521 feature a serial interface and internal software protocol, allowing communication at data rates up to 400kbps. The interface, combined with the double-buffered input configuration, allows the DAC registers to be updated individually or simultaneously. In addition, the devices can be put into a low-power shutdown mode that reduces supply current to 4µA. Power-on reset ensures the DAC outputs are at 0V when power is initially applied. The MAX520 is available in 16-pin DIP and wide SO packages, as well as a space-saving 20-pin SSOP. The MAX521 comes in 20-pin DIP and 24-pin SO packages, as well as a space-saving 24-pin SSOP.

关键特性 Single +5V Supply Simple 2-Wire Serial Interface I²C Compatible Outputs Swing Rail to Rail: Unbuffered Outputs (MAX520) Buffered Outputs (MAX521) 1%-Accurate Trimmed Output Resistance (MAX520A) Ultra-Low 4µA Supply Current (MAX520) Individual DACs Have Separate Reference Inputs Power-On Reset Clears All Latches 4µA Power-Down Mode

MAX520、MAX521：典型应用电路 应用 数字增益与失调控制 通用产品 工业过程控制 可编程衰减器

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相关产品

• MAX528：八通道、串行、8位DAC，带有输出缓冲器
• MAX534：+5V、低功耗、8位四路DAC，带有满摆幅输出缓冲器

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