DS1804-010

Digital Potentiometers Overview

The DS1804-010 is a single nonvolatile digital potentiometer featuring 100 tap positions and a nominal resistance of 10kΩ. It operates within a supply voltage range of +2.7V to +5.5V, drawing a maximum supply current of 400µA. The device utilizes an increment/decrement counter-controlled interface managed via CS, INC, and U/D pins. Wiper position data is stored in EEPROM memory on demand, with a specified endurance of 50,000 writes between 0°C and 70°C. The component supports linear taper characteristics and functions across an industrial temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Single 100-position nonvolatile digital potentiometer with 10kΩ nominal resistance
• Increment/Decrement counter-controlled interface using CS, INC, and U/D inputs
• On-demand wiper storage to EEPROM memory with 50,000 write endurance
• Operates from 3V or 5V supplies with low standby current (10µA at 3V)

Digital Potentiometers Applications

• Low-cost trimming applications requiring CPU or manual control
• Portable equipment due to low power consumption and supply flexibility
• One-time programmable (OTP) resistor configurations

Digital Potentiometers Procurement Notes

Verify the specific package suffix when ordering, as the base model number does not indicate the physical footprint. Options include 8-pin DIP (300 mils), 8-pin SO (150 mils), and 8-pin µSOP (118 mils). Confirm RoHS compliance status if required by the design specifications.

Digital Potentiometers Selection Notes

Select the DS1804-010 for circuits requiring a 10kΩ variable resistance. Ensure the control logic can generate the necessary high-to-low transitions on the INC pin while managing the CS and U/D states. Verify that the application environment remains within the -40°C to +85°C operating temperature range for guaranteed performance.

Digital Potentiometers Part Context

The DS1804 series includes variants with 50kΩ (DS1804-050) and 100kΩ (DS1804-100) resistances. All variants share identical electrical characteristics, interface protocols, and packaging options, differing only in the end-to-end resistance value.

Digital Potentiometers Replacement Considerations

Direct functional replacements are limited to other Maxim Integrated nonvolatile digital potentiometers with compatible interfaces. Cross-model substitution requires verifying pin compatibility and interface timing constraints.