I2C-Compatible,
256-Position Digital Potentiometers
AD5241/AD5242 Data Sheet
FEATURES FUNCTIONAL BLOCK DIAGRAM APPLICATIONS
Multimedia, video, and audio
Communications
Mechanical potentiometer replacement
Instrumentation: gain, offset adjustment
Programmable voltage-to-current conversion
Line impedance matching A1 W1 B1 O1 O2 SHDN
VDD RDAC
REGISTER 1 REGISTER 2 VSS
ADDR
DECODE SDA
SCL
GND 8 AD5241 PWR-ON
RESET SERIAL INPUT REGISTER AD0 00926-001 256 positions
10 kΩ, 100 kΩ, 1 MΩ
Low temperature coefficient: 30 ppm/°C
Internal power on midscale preset
Single-supply 2.7 V to 5.5 V or dual-supply ±2.7 V for ac or
bipolar operation
I2C-compatible interface with readback capability …