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Partname:AD5204BR100
Description:4-channel digital potentiometer, 100KOhm
Manufacturer:Analog Devices
Package:SOIC
Pins:24
Oper. temp.:-40 to 85
Datasheet:PDF (173K).
Click here to download *)

The AD5204/AD5206 provides four-/six-channel, 256 position digitally-controlled Variable Resistor (VR) devices. These devices perform the same electronic adjustment function as a potentiometer or variable resistor. Each channel of the AD5204/ AD5206 contains a fixed resistor with a wiper contact that taps the fixed resistor value at a point determined by a digital code loaded into the SPI-compatible serial-input register. The resistance between the wiper and either endpoint of the fixed resistor varies linearly with respect to the digital code transferred into the VR latch. The variable resistor offers a completely programmable value of resistance between the A terminal and the wiper or the B Terminal and the wiper. The fixed A-to-B terminal resistance of 10 k, 50 k, or 100 k has a nominal temperature coefficient of 700 ppm/C. Each VR has its own VR latch which holds its programmed resistance value. These VR latches are updated from an internal serial-to-parallel shift register that is loaded from a standard 3-wire serial-input digital interface. Eleven data bits make up the data word clocked into the serial input register. The first three bits are decoded to determine which VR latch will be loaded with the last eight bits of the data word when the CS strobe is returned to logic high. A serial data output pin at the opposite end of the serial register (AD5204 only) allows simple daisy-chaining in multiple VR applications without additional external decoding logic.

Click here to download AD5204BR100 Datasheet
Click here to download AD5204BR100 Datasheet
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