The AD5259BRMZ10-R7 provides a compact, nonvolatile LFCSP-10 (3 mm x 3 mm) or MSOP-10 (3 mm x 4.9 mm) packaged solution for 256-position adjustment applications. These devices perform the same electronic adjustment function as mechanical potentiometers1 or variable resistors, but with enhanced resolution and solid-state reliability.
The wiper settings are controllable through an I2C-compatible digital interface that is also used to read back the wiper register and EEPROM content. Resistor tolerance is also stored within EEPROM, providing an end-to-end tolerance accuracy of 0.1%.
A separate VLOGIC pin delivers increased interface flexibility. For users who need multiple parts on one bus, Address Bit AD0 and Address Bit AD1 allow up to four devices on the same bus
Feature
# Channels: 1
# Positions: 256
Memory Type: nonvolatile
Interface: I2C
Resistor Values (kOhm): 5, 10, 50, 100
Voltage Range (V): +5.5 V
Supply Current (µA): 3 µA
Temp. Range -40°C to +85°C
Absolute Tempco (ppm/°C): 300
VLOGIC Pin Provides Increased Interface flexibility
Applications
LCD panel VCOM adjustment
LCD panel brightness and contrast control
Mechanical potentiometer replacement in new designs
Programmable power supplies
RF amplifier biasing
Automotive electronics adjustment
Gain control and offset adjustment
Fiber to the home systems
Electronics level settings
(Picture: Pinout)
(Picture: Diagram)
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
