Quad, 15 V, 256-Position, Digital
Potentiometer with Pin-Selectable SPI/I2C
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 AD0 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
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
FUNCTIONAL BLOCK DIAGRAM
A1 W1 B1 A2 W2 B2 A3 W3 B3 A4 W4 B4
DIS NC/O2 SDO/O1
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
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-to-
channel 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 power-
on. Once powered, the VR wiper position is programmed by
either the 3-wire SPI or 2-wire I2C-compatible interface. In the
I2C mode, additional programmable logic outputs enable users
to drive digital loads, logic gates, and analog switches in their
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.
1 The terms digital potentiometer, VR, and RDAC are used interchangeably.
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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