MAX549A:+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

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.

关键特性
  • +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)
MAX548A、MAX549A、MAX550A:功能框图
MAX548A、MAX549A、MAX550A:功能框图
应用
  • 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
数据手册DataSheet
语言下载文件备注
英文MAX548A-MAX550A.pdfRev 0; 03/1997
关键参数
Part NumberResolution
(bits)
ChannelsOutput TypeReferenceINL
(±LSB)
InterfaceSupply Range
(V)
Supply Range
(V)
ICC
(mA)
Settling Time
(µs)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
maxminmaxmaxtypSee Notes
MAX548A82Voltage- UnbufferedExt.1Serial - SPI2.55.50.554
  • µMAX/8
  • PDIP(N)/8
  • -40 to +85
  • 0 to +70
$3.00 @1k
MAX549A2
  • µMAX/8
  • PDIP(N)/8
$3.22 @1k
MAX550A1
  • µMAX/8
  • PDIP(N)/8
$1.68 @1k
质量和环境数据
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX549AC/D停止供货DICE SALES,;NA引脚;DICE;0°C至+70°C参考数据资料
MAX549ACPA停止供货MAX549ACPA+PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:否
MAX549ACPA+生产中PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:无铅
MAX549ACUA停止供货MAX549ACUA+µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:否
MAX549ACUA+生产中µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:无铅
MAX549ACUA+T生产中µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:无铅
MAX549ACUA-T停止供货MAX549ACUA+TµMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:否
MAX549AEPA停止供货MAX549AEPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
MAX549AEPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
MAX549AEUA停止供货MAX549AEUA+µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX549AEUA+生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
MAX549AEUA+T生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
MAX549AEUA-T停止供货MAX549AEUA+TµMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
MAX548A-MAX550A.pdf MAX550A
MAX549A.pdf MAX549A
MAX548A-MAX550A.pdf MAX549A