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+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

产品详情

主要特征

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 8
# Channels 8
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 3.6
ICC (mA) (max) 2.6
Settling Time (µs) (typ) 7
Package/Pins QSOP/16
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
2.71
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参量

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 8
# Channels 8
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 3.6
ICC (mA) (max) 2.6
Settling Time (µs) (typ) 7
Package/Pins QSOP/16
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
2.71

主要特征

  • 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

应用/用途

  • 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

描述

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.

简化框图

MAX5258、MAX5259:引脚配置 MAX5258、MAX5259:引脚配置 Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

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