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Data Sheet
Dual, 256-Position, I2C-Compatible Digital Potentiometers AD5243/AD5248
FEATURES
2-channel, 256-position potentiometers End-to-end resistance: 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ Compact 10-lead MSOP (3 mm × 4.9 mm) package Fast settling time: tS = 5 µs typical on power-up Full read/write of wiper register Power-on preset to midscale Extra package address decode pins: AD0 and AD1 (AD5248 only) Computer software replaces microcontroller in factory
programming applications Single supply: 2.7 V to 5.5 V Low temperature coefficient: 35 ppm/°C Low power: IDD = 6 µA maximum Wide operating temperature: −40°C to +125°C Evaluation board available
FUNCTIONAL BLOCK DIAGRAMS
A1 W1 B1
A2 W2 B2
VDD GND
SDA SCL
WIPER REGISTER 1
WIPER REGISTER 2
AD5243
PC INTERFACE
Figure 1.
AD5243 Datasheet
