DS4301 Maxim Integrated Products, Inc., DS4301 Datasheet
DS4301
Available stocks
Related parts for DS4301
DS4301 Summary of contents
Page 1
... Rev 0; 8/03 Nonvolatile, 32-Position Digital Potentiometer General Description The DS4301 is a single 32-position linear digital poten- tiometer with 200kΩ end-to-end resistance. The wiper setting is stored in EEPROM, so the DS4301 powers up with the last stored setting. The position of the wiper is controlled through a simple increment/decrement interface ...
Page 2
Nonvolatile, 32-Position Digital Potentiometer ABSOLUTE MAXIMUM RATINGS Voltage Range on V Pin Relative to Ground .....-0.5V to +6.0V CC CS, INC, U/ Pins Voltage Range on Relative to Ground*.....................................-0. Wiper Current .....................................................................±3mA Operating Temperature Range ...
Page 3
Nonvolatile, 32-Position Digital Potentiometer AC ELECTRICAL CHARACTERISTICCS ( -40°C to +85°C. See Figure 2 for timing diagram MIN CC MAX A PARAMETER SYMBOL CS to INC Setup U/D to INC Setup ...
Page 4
Nonvolatile, 32-Position Digital Potentiometer (V = 5.0V +25°C, unless otherwise noted SUPPLY CURRENT vs. VOLTAGE INC = U POWER-UP 5 POWER-DOWN ...
Page 5
Nonvolatile, 32-Position Digital Potentiometer (V = 5.0V +25°C, unless otherwise noted END-TO-END RESISTANCE PERCENT CHANGE FROM +25°C vs. TEMPERATURE -37.18ppm/° -148.38ppm/° ...
Page 6
... POSITION X POSITION WIPER POSITION Figure 2. Timing Diagram 6 _____________________________________________________________________ Adjusting the wiper of the DS4301 involves using the three control pins (U/D, CS, and INC). See the H Diagram in Figure 2. To enable wiper adjustment, a POS 31 high-to-low transition on the CS pin is required. Hold CS low for the duration of the communication. Doing this enables the INC pin to change the wiper position ...
Page 7
... For applications that require a specific wiper setting to be loaded on power-up and never changed, write the desired wiper setting to the EEPROM, then tie Every time power is cycled to the DS4301, the CC desired wiper setting is loaded from EEPROM, and since CS is tied changes can be made to CC the wiper setting ...