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MAX5258：+3V/+5V、低功耗、8位八通道DAC，带有满摆幅输出缓冲器

业内尺寸最小、速率最高、带缓冲输出的8通道DAC

The MAX5258/MAX5259 are +3V/+5V single-supply, digital serial-input, voltage-output, 8-bit octal digital-to-analog converters (DACs). Internal precision buffers swing rail-to-rail, and the reference input range extends from ground to the positive supply. Both the +5V (MAX5258) and the +3V (MAX5259) feature a 10µA (max) shutdown mode. The serial interface is double buffered: a 16-bit input shift register is followed by eight 8-bit input registers and eight 8-bit DAC registers. The 16-bit serial word consists of 2 "don't care" bits, 3 address bits, 3 control bits, and 8 data bits. Both the input and DAC registers can be updated independently or simultaneously with a single software command. The asynchronous control input, active-low LDAC, provides simultaneous updating of all 8 DAC registers. The interface is compatible with SPI™, QSPI™ (CPOL = CPHA = 0 or CPOL = CPHA = 1), and MICROWIRE™. A buffered digital data output allows daisy-chaining of serial devices. The MAX5258/MAX5259 are available in a 16-pin QSOP package.

关键特性 Ultra-Small 16-Pin QSOP Package Single +2.7V to +5.5V Supply Operation Low Supply Current: 1.3mA Low-Power Shutdown Mode 0.24µA (MAX5259) 0.45µA (MAX5258) ±1LSB DNL (max) ±1LSB INL (max) Ground to VDD Reference Input Range Output Buffer Amplifiers Swing Rail-to-Rail 10MHz Serial Interface, Compatible with SPI, QSPI (CPOL = CPHA = 0 or CPOL = CPHA = 1), and MICROWIRE Double-Buffered Registers for Synchronous Updating Serial Data Output for Daisy-Chaining

MAX5258、MAX5259：引脚配置 应用 数字增益与失调控制 便携式仪表 可编程衰减器 可编程电流源

数据手册DataSheet

关键参数

开发工具

• MAX5258EVKIT

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• MAX521：四/八通道、2线串行8位DAC，满摆幅输出

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