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Partname:AD5207BRUZ100
Description:Dual, 256 Position, Digital Potentiometer
Manufacturer:Analog Devices
Pins:14
Datasheet:PDF (698K).
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The AD5207 provides dual channel, 256-position, digitally controlled variable resistor (VR) devices that perform the same electronic adjustment function as a potentiometer or variable resistor. Each channel of the AD5207 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 end point 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 1% channel-to-channel matching tolerance with a nominal temperature coefficient of 500 ppm/C. A unique switching circuit minimizes the high glitch inherent in traditional switched resistor designs and avoids any make-before-break or breakbefore-make operation. 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, which is loaded from a standard 3-wire serial-input digital interface. Ten bits, to make up the data word, are required and clocked into the serial input register.

Click here to download AD5207BRUZ100 Datasheet
Click here to download AD5207BRUZ100 Datasheet
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