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特性

  • Four potentiometers in one package
  • 256 resistor taps/pot - 0.4% resolution
  • SPI serial interface
  • Wiper resistance, 40Ω typical @ VCC = 5V
  • Four nonvolatile data registers for each pot
  • Nonvolatile storage of wiper position
  • Standby current < 5µA max (total package)
  • Power supplies
  • VCC = 2.7V to 5.5V
  • V+ = 2.7V to 5.5V
  • V- = -2.7V to -5.5V
  • 100kΩ, 50kΩ total pot resistance
  • High reliability
  • Endurance - 100,000 data changes per bit per register
  • Register data retention - 100 years
  • 24 Ld SOIC, 24 Ld TSSOP
  • Dual supply version of X9251
  • Pb-free plus anneal available (RoHS compliant)

描述

The X9250 integrates 4 digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated circuit. The digitally controlled potentiometer is implemented using 255 resistive elements in a series array. Between each element are tap points connected to the wiper terminal through switches. The position of the wiper on the array is controlled by the user through the SPI bus interface. Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and 4 nonvolatile Data Registers (DR0:DR3) that can be directly written to and read by the user. The contents of the WCR controls the position of the wiper on the resistor array though the switches. Power up recalls the contents of DR0 to the WCR. The XDCP can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of applications including control, parameter adjustments, and signal processing.

产品参数

属性
Resistance TaperLinear
Taps (#)256
Resistance Options (kΩ)50, 100
Channels (#)4
InterfaceSPI
Memory TypeNonvolatile
Vcc (V)2.7 to 5.5
Supply Current Icc (µA)5
Dual Supply Range (V)-2.7 to 5.5
Wiper Current (mA)7.5
Wiper Resistance (ohms)150
VL Terminal Voltage (Min) (V)-5.5
VL Terminal Voltage (Max) (V)5.5
End-to-End Temperature Coefficient (ppm/°C)300
Middlepoint Ratiometric Tempco20
Qualification LevelStandard

封装选项

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
SOICW15.4 x 7.5 x 0.00241.3
TSSOP7.8 x 4.4 x 0.90240.7
Part NumberStatusSamplesStockRoHSPackageBudgetary Price (USD)Carrier TypeMoisture Sensitivity Level (MSL)Country of AssemblyCountry of Wafer Fabrication
X9250TS24IZ-2.7ActiveAvailableIn StockContactSOICW1ku | $26.44Tube5MALAYSIAUSA
X9250TS24IZ-2.7T1ActiveN/AOut of StockContactSOICW1ku | $26.44Reel5MALAYSIAUSA
X9250TS24ZActiveAvailableIn StockRoHS:EN
SOICW1ku | $15.39Tube5MALAYSIAUSA
X9250TS24Z-2.7ActiveAvailableIn StockContactSOICW1ku | $16.61Tube5MALAYSIAUSA
X9250TS24Z-2.7T1ActiveN/AOut of StockContactSOICW1ku | $16.61Reel5MALAYSIAUSA
X9250TS24ZT1ActiveN/AOut of StockRoHS:EN
SOICW1ku | $15.39Reel5MALAYSIAUSA
X9250US24IZ-2.7ActiveAvailableIn StockContactSOICW1ku | $26.44Tube5MALAYSIAUSA
X9250US24IZ-2.7T1ActiveN/AOut of StockContactSOICW1ku | $26.44Reel5MALAYSIAUSA
X9250US24ZActiveAvailableIn StockRoHS:EN
SOICW1ku | $21.51Tube5MALAYSIAUSA
X9250US24Z-2.7ActiveAvailableIn StockContactSOICW1ku | $16.61Tube5MALAYSIAUSA
X9250US24Z-2.7T1ActiveN/AIn StockContactSOICW1ku | $16.61Reel5MALAYSIAUSA
X9250US24ZT1ActiveN/AOut of StockRoHS:EN
SOICW1ku | $21.51Reel5MALAYSIAUSA
X9250UV24IZActiveAvailableIn StockRoHS:EN
TSSOP1ku | $27.99Tube5MALAYSIAUSA
X9250UV24IZ-2.7ActiveAvailableIn StockContactTSSOP1ku | $27.99Tube5MALAYSIAUSA
X9250UV24IZ-2.7T2ActiveN/AOut of StockContactTSSOP1ku | $27.99Reel5MALAYSIAUSA
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