MAX5451:双路、256抽头、增/减控制接口数字电位器

业内尺寸最小的256抽头、双通道数字电位器

The MAX5450—MAX5455 are a family of dual digital potentiometers that perform the same function as a mechanical potentiometer or variable resistor. The MAX5451/MAX5453/MAX5455 have two 3-terminal potentiometers and the MAX5450/MAX5452/MAX5454 have two 2-terminal variable resistors. The MAX5450—MAX5455 operate from a +2.7V to +5.5V single-supply voltage and use an ultra-low supply current of 0.1µA. These devices consist of two fixed resistors each with 256 digitally-controlled wiper contacts. The convenient power-on reset (POR) sets the wiper to midscale position at power-up and the easy-to-use up/down interface allows glitchless switching between resistor taps. Six inputs control the 14-pin MAX5451/MAX5453/MAX5455 potentiometers. Four inputs control the 10-pin MAX5450/MAX5452/MAX5454 variable resistors. The MAX5450—MAX5455 are ideal for applications requiring digitally-controlled resistors. Three resistance values are available: 10kΩ, 50kΩ, and 100kΩ. An end-to-end resistor temperature coefficient of 35ppm/°C and a ratiometric temperature coefficient of 5ppm/°C make the MAX5450—MAX5455 excellent choices for adjustable gain circuit requiring low-temperature drift. The MAX5450—MAX5455 are available in 10-pin µMAX® and 14-pin TSSOP packages. Each device is guaranteed over the extended—industrial temperature range (-40°C to +85°C).

关键特性
  • Small-Footprint Packages
    • 10-Pin µMAX (MAX5450/MAX5452/MAX5454)
    • 14-Pin TSSOP (MAX5451/MAX5453/MAX5455)
  • 256-Tap Positions
  • Independent Up/Down Potentiometer Controls (MAX5451/MAX5453/MAX5455)
  • Ultra-Low 0.1µA Supply Current
  • +2.7V to +5.5V Single-Supply Operation
  • Low 35ppm/°C End-to-End Temperature Coefficient
  • Power-On Reset Sets Wiper to Midscale (Position 127)
  • Glitchless Switching Between the Resistor Taps
  • 10kΩ, 50kΩ, 100kΩ Resistance Values
MAX5450、MAX5451、MAX5452、MAX5453、MAX5454、MAX5455:引脚配置
MAX5450、MAX5451、MAX5452、MAX5453、MAX5454、MAX5455:引脚配置
应用
  • 可调节线性稳压器
  • 可调节电压基准
  • 阻抗匹配
  • LCD屏调节
  • 低漂移可编程增益放大器(PGA)
  • 替代机械电位器
  • 可编程滤波器、延时、时间常数
  • 音量控制
数据手册DataSheet
语言下载文件备注
英文MAX5450-MAX5455.pdfRev 2; 05/2006
关键参数
Part NumberTaperPOTsControl InterfaceWiper MemoryStepsREND-TO-END
(kΩ)
Res. Tol.
(%)
Temp. Coeff.
(ppm/°C)
Wiper Resistance
(Ω)
ICC @5V
(µA)
Package/PinsBudgetary
Price
typtypmaxSee Notes
MAX5450Linear2Up/DownVolatile2561025352252µMAX/10$2.51 @1k
MAX545110TSSOP/14
MAX545250µMAX/10
MAX545350TSSOP/14
MAX5454100µMAX/10
MAX5455100TSSOP/14
技术资料
相关产品
  • MAX5404:双路、256抽头、低漂移、数字电位器,10引脚µMAX封装
  • MAX5405:双路、256抽头、低漂移、数字电位器,10引脚µMAX封装
  • MAX5403:双路、256抽头、低漂移、数字电位器,10引脚µMAX封装
  • MAX5414:双路、256抽头、低漂移、数字电位器,14引脚TSSOP封装
  • MAX5415:双路、256抽头、低漂移、数字电位器,14引脚TSSOP封装
  • MAX5413:双路、256抽头、低漂移、数字电位器,14引脚TSSOP封装
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX5451EUD停止供货MAX5451EUD+TSSOP,;14引脚;33.4mm²-40°C至+85°CRoHS/无铅:否
MAX5451EUD+生产中TSSOP,;14引脚;33.4mm²-40°C至+85°CRoHS/无铅:无铅
MAX5451EUD+T生产中TSSOP,;14引脚;33.4mm²-40°C至+85°CRoHS/无铅:无铅
MAX5451EUD-T停止供货MAX5451EUD+TTSSOP;14引脚-40°C至+85°C参考数据资料
MAX5450-MAX5455.pdf MAX5455
Reduce the Chances of Human Error: Part 1, Power and Ground MAX5481
MAX5450-MAX5455.pdf MAX5455