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1/15V双通道数字电位器ad5260/AD5262数据表
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The AD5260/AD5262 provide a single- or dual-channel， 256- position， digitally controlled variable resistor （VR） device.1 These devices perform the same electronic adjustment function as a potentiometer or variable resistor. Each channel of the AD5260/AD5262 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 20 Ω， 50 Ω， or 200 Ω has a nominal temperature coefficient of 35 ppm/°C. Unlike the majority of the digital potentiometers in the market， these devices can operate up to 15 V or ±5 V provided proper supply voltages are furnished.
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