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+2.5V至+5.5V、低功耗、单/双路、8位、电压输出DAC,µMAX封装

双路、串行、电压输出DAC,采用µMAX封装

产品详情

主要特征

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 8
# Channels 2
Interface Serial - SPI
Output Type Voltage- Unbuffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.55
Settling Time (µs) (typ) 4
Package/Pins PDIP/8
UMAX/8
Oper. Temp. (°C) -40 to +85
0 to +70
Budgetary
Price (See Notes)
3.34
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参量

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 8
# Channels 2
Interface Serial - SPI
Output Type Voltage- Unbuffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.55
Settling Time (µs) (typ) 4
Package/Pins PDIP/8
UMAX/8
Oper. Temp. (°C) -40 to +85
0 to +70
Budgetary
Price (See Notes)
3.34

主要特征

  • +2.5V to +5.5V Single-Supply Operation
  • ±1LSB (max) TUE
  • Power-On Reset Clears All Registers to Zero
  • Low Operating Current:
    • 150µA (MAX548A/MAX549A, VREF = +2.5V)
    • 75µA (MAX550A, VREF = +2.5V)
  • 1µA Shutdown Mode
  • 10MHz, 3-Wire Serial Interface Compatible with SPI/QSPI and Microwire
  • µMAX Package-50% Smaller than 8-Pin SO
  • Independent Shutdown of DACs (MAX548A/MAX549A)

应用/用途

  • 电池供电应用
  • 比较器电平设置
  • 数字增益与失调控制
  • GaAs放大器偏置控制
  • 通用产品
  • VCXO控制

描述

The MAX548A/MAX549A/MAX550A serial, 8-bit voltage-output digital-to-analog converters (DACs) operate from a single +2.5V to +5.5V supply. Their ±1LSB TUE specification is guaranteed over temperature. Operating current (supply current plus reference current) is typically 75µA per DAC with VDD = 2.5V. In shutdown, the DAC is disconnected from the reference, reducing current drain to less than 1µA. The MAX548A/MAX549A allow each DAC to be shut down independently.

The 10MHz, 3-wire serial interface is compatible with SPI™/QSPI™ and Microwire™ interface standards. Double-buffered inputs provide flexibility when updating the DACs; the input and DAC registers can be updated individually or simultaneously.

The MAX548A is a dual DAC with an asynchronous load input; it uses VDD as the reference input. The MAX549A is a dual DAC with an external reference input. The MAX550A is a single DAC with an external reference input and an asynchronous load input.

The MAX548A/MAX549A/MAX550A's low power consumption and small µMAX® and DIP packages make these devices ideal for portable and battery-powered applications.

简化框图

MAX548A、MAX549A、MAX550A:功能框图 MAX548A、MAX549A、MAX550A:功能框图 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