Dual, 256-Position, I2C-Compatible
Digital Potentiometers
AD5243/AD5248 Data Sheet FUNCTIONAL BLOCK DIAGRAMS 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 A1 W1 B1 A2 W2 B2 VDD
WIPER
REGISTER 1 WIPER
REGISTER 2 GND AD5243
SDA 04109-0-001 FEATURES PC INTERFACE SCL Figure 1. AD5243
W1 B1 W2 B2 APPLICATIONS
VDD
RDAC …