DS1801E-02V+

Digital Potentiometers Overview

The DS1801E-02V+ is a dual digital potentiometer IC featuring two independent audio taper wipers. It offers a nominal resistance of 45 kOhms with a tolerance of ±20% and a temperature coefficient of 750 PPM/°C. The device provides 65 taps per wiper for precise adjustment. It operates on a serial 3-wire interface and supports a supply voltage range of 2.7 V to 5.5 V, with a typical operating current of 50 uA. Storage is volatile, meaning settings are lost upon power loss. It is housed in a 14-TSSOP package and functions within a temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Dual independent wiper configuration designed specifically for audio applications with logarithmic taper characteristics.
• Serial 3-wire digital interface allows for straightforward control using minimal microcontroller pins.
• Compact surface-mount packaging suitable for space-constrained electronic designs.

Digital Potentiometers Applications

• Audio volume control circuits
• Gain adjustment in preamplifiers
• Bass and treble tone controls

Digital Potentiometers Procurement Notes

Verify the specific suffix code against the manufacturer's official documentation to confirm pinout compatibility and electrical specifications. Ensure that the volatile memory requirement aligns with system power management strategies, as settings will not persist without backup power or periodic re-initialization routines during operation.

Digital Potentiometers Selection Notes

Select this component when dual-channel audio attenuation is required with logarithmic response curves matching human hearing perception. Consider the 45 kOhm resistance value and 65-tap resolution for adequate control granularity. Verify that the 3-wire serial interface fits the available MCU resources and that the operating voltage range matches the system logic levels.

Digital Potentiometers Part Context

This part belongs to the DS1801 series of digital potentiometers from Analog Devices (Maxim Integrated). It is distinct from linear taper variants and non-volatile models like the DS3901. The series focuses on providing reliable analog resistance emulation through digital commands, serving as a solid-state alternative to mechanical potentiometers in consumer electronics.

Digital Potentiometers Replacement Considerations

Direct substitutes include other dual digital potentiometers with similar resistance values and interfaces, such as the DS1801S+. However, verify package dimensions and pin assignments carefully, as variations exist between TSSOP and SOIC packages within the same functional family.