For 3-wire, SPI compatible interface applications, see the AD5203/AD5206/AD7376/AD8400/AD8402/AD8403 products. All parts are guaranteed to operate over the extended industrial temperature range of -40☌ to +85☌.
For ultra compact solutions selected models are available in the thin TSSOP-14 package. The AD5222 is available in the surface mount (SO-14) package. This simple "push button" controlled interface eliminates the need for Micro Controllers in front panel interface designs. In the independent MODE (logic one) only the VR determined by the DACSEL pin is changed. The relative ratio between the wipers is preserved if either wiper reaches the end of the resistor array. With MODE at logic zero, both wipers are incremented UP or DOWN without changing the relative settings between the wipers. A MODE control determines whether both VRs are incremented together or independently. The chip select CS, count CLK and U/D direction control inputs set the variable resistor position.
Dc crompton potentiometer pdf portable#
These products were optimized for portable instrument and test equipment "push button" applications. The fixed A-to-B terminal resistance of 10 K, 50 K, 100 K, or 1 M Ohm has a 1% channel-to-channel matching tolerance with a nominal temperature coefficient of -300 ppm/☌. This part performs the same electronic adjustment function as a potentiometer, trimmer, or variable resistor. The AD5222 contains two, 128-position, digitally-controlled variable resistors (VR).
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