PDTC114ET transistors equivalent, npn resistor-equipped transistors.
AD5200—256-Position AD5201—33-Position 10 k ⍀, 50 k⍀ 3-Wire SPI-Compatible Serial Data Input Single Supply 2.7 V to 5.5 V or Dual Supply ؎ 2.7 V for AC or Bipolar Operati.
Mechanical Potentiometer Replacement Instrumentation: Gain, Offset Adjustment Programmable Voltage-to-Current Conversion.
The AD5200 and AD5201 are programmable resistor devices, with 256 positions and 33 positions respectively, that can be digitally controlled through a 3-wire SPI serial interface. The terms programmable resistor, variable resistor (VR), and RDAC are .
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