Analog Devices Inc. AD5263BRU20

Description
The AD5263 is a quad-channel, 256-position digital potentiometer with a selectable digital interface. It 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 130 ppm/°C and a ±1% channel-to-channel matching tolerance. Another key feature of this part is the ability to operate from 4.5 V to 15 V, or at 15 V.
Wiper position programming presets to midscale upon power-on. Once powered, the VR wiper position is programmed by either the 3-wire SPI or 2-wire I²C-compatible interface. In the FC mode, additional programmable logic outputs enable users to drive digital loads, logic gates, and analog switches in their systems.

Features
256-position, 4-channel
End-to-end resistance: 20 kΩ, 50 kΩ, 200 kΩ
Pin-selectable SPI- or I²C-compatible interface
Power-on preset to midscale
Two package address decode pins (ADO and AD1)
Rheostat mode temperature coefficient: 30 ppm/°C
Voltage divider temperature coefficient: 5 ppm/°C
Wide operating temperature range: -40°C to 125°C
10 V to 15 V single supply: ±5 V dual supply

Applications
Mechanical potentiometer replacement
Optical network adjustment
Instrumentation: gain, offset adjustment
Stereo channel audio level control
Automotive electronics adjustment
Programmable power supply
Programmable filters, delays, time constants
Line impedance matching
Low resolution DAC/trimmer replacement
Base station power amp biasing
Sensor calibration