资 源 简 介
The AD5263 is the industry’s first quad-channel， 256-posiTIon， digital potenTIometer1 with a selectable digital interface. This device performs the same electronic adjustment funcTIon as mechanical potenTIometers or variable resistors， with enhanced resolution， solid-state reliability， and superior low temperature coefficient performance. Each channel of the AD5263 offers a completely programmable value of resistance between the A terminal and the wiper or between the B terminal and the wiper. The fixed A-to-B terminal resistance of 20 kΩ， 50 kΩ， or 200 kΩ has a nominal temperature coefficient of ±30 ppm/°C and a ±1% channel-tochannel matching tolerance. Another key feature of this part is the ability to operate from +4.5 V to +15 V， or at ±5 V. Wiper position programming presets to midscale upon poweron. Once powered， the VR wiper position is programmed by either the 3-wire SPI or 2-wire I2 C-compatible interface. In the I 2 C mode， additional programmable logic outputs enable users to drive digital loads， logic gates， and analog switches in their systems. The AD5263 is available in a narrow body， 24-lead TSSOP. All parts are guaranteed to operate over the automotive temperature range of –40°C to +125°C. For single- or dual-channel applications， refer to the AD5260/AD5280 or AD5262/AD5282 data sheets.
