Product Details
●The AD5124/AD5144/AD5144A potentiometers provide a nonvolatile solution for 128-/256-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the Ax, Bx, and Wx pins.
●The low resistor tolerance and low nominal temperature coefficient simplify open-loop applications as well as applications requiring tolerance matching.
●The linear gain setting mode allows independent programming of the resistance between the digital potentiometer terminals, through the RAW and RWB string resistors, allowing very accurate resistor matching.
●The high bandwidth and low total harmonic distortion (THD) ensure optimal performance for ac signals, making these devices suitable for filter design.
●The low wiper resistance of only 40 Ω at the ends of the resistor array allow for pin-to-pin connection.
●The wiper values can be set through an SPI-/I2C-compatible digital interface that is also used to read back the wiper register and EEPROM contents.
●The AD5124/AD5144/AD5144A are available in a compact, 24-lead, 4 mm × 4 mm LFCSP and a 20-lead TSSOP. The parts are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.
●Applications
● Portable electronics level adjustment
● LCD panel brightness and contrast controls
● Programmable filters, delays, and time constants
● Programmable power supplies
●### Features and Benefits
● 10 kΩ and 100 kΩ resistance option
● Resistor tolerance: 8% maximum
● Wiper current: ±6 mA
● Low temperature coefficient: 35 ppm/°C
● Wide bandwidth: 3 MHz
● Fast start-up time < 75 μs
● Linear gain setting mode
● Single- and dual-supply operation
● Independent logic supply: 1.8 V to 5.5 V
● Wide operating temperature: −40°C to +125°C
● 4 mm × 4 mm package option
