The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.
MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020
SMD = Standard Microcircuit Drawing
Description
The X9420 integrates a single digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated microcircuit.
The digitally controlled potentiometer is implemented using 63 resistive elements in a series array. Between each element are tap points connected to the wiper terminal through switches. The position of the wiper on the array is controlled by the user through the SPI bus interface. The potentiometer has associated with it a volatile Wiper Counter Register (WCR) and 4 nonvolatile Data Registers (DR0:DR3) that can be directly written to and read by the user. The contents of the WCR controls the position of the wiper on the resistor array through the switches. Power-up recalls the contents of DR0 to the WCR.
The XDCP can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of applications including control, parameter adjustments, and signal processing.
Key Features
Solid-State Potentiometer
SPI Serial Interface
Register Oriented Format
Direct read/write/transfer wiper positions
Store as many as four positions per potentiometer
Power Supplies
VCC = 2.7V to 5.5V
V+ = 2.7V to 5.5V
V– = -2.7V to -5.5V
Low Power CMOS
Standby current < 1μA
High Reliability
Endurance–100,000 data changes per bit per register
Application Note(s):
Technical Brief(s):
Evaluation Board(s):
Technical Homepage: