DS1882E-050+T&R

Digital Potentiometers Overview

The DS1882E-050+T&R is a dual nonvolatile digital potentiometer designed for audio systems supporting up to ±7V signal levels. It features two logarithmic tapered potentiometers with 45kΩ end-to-end resistance and 64 taps per channel. The device operates on a 5V digital supply (VDD) and an independent analog supply range of 4.5V to 7V (VCC). Key electrical parameters include a typical digital supply current of 5µA and analog supply current of 10µA. It utilizes an I²C-compatible serial interface with three address pins, allowing up to eight devices on a single bus.

Digital Potentiometers Feature Summary

• Dual log audio taper potentiometers with 45kΩ resistance and 64 positions
• Zero-crossing detection eliminates switching noise during wiper changes
• Configurable attenuation options: 63 steps (1dB/step) or software-compatible DS1808 profile
• Nonvolatile EEPROM storage retains settings across power cycles

Digital Potentiometers Applications

• Notebook and PC audio circuits
• Portable audio equipment volume control
• Car stereo systems
• Consumer audio/video channels

Digital Potentiometers Procurement Notes

Verify the ordering suffix +T&R indicates tape-and-reel packaging in the 16-pin TSSOP package. Confirm the E suffix denotes the industrial temperature range (-40°C to +85°C). Ensure the datasheet version matches the specific revision required for design-in compatibility.

Digital Potentiometers Selection Notes

Select this component when independent analog supplies are required for high-voltage audio signals. The dual-channel design ensures 0.5dB channel-to-channel matching. Verify that the I²C bus speed requirements do not exceed 400kHz and that the CE pin logic level aligns with the master controller.

Digital Potentiometers Part Context

This part belongs to the DS1882 family of dual digital potentiometers. The 'E' suffix specifies the extended industrial temperature range. The 'Z' variant offers the same functionality in a 16-pin SO package. Both variants share identical electrical characteristics and pinouts.

Digital Potentiometers Replacement Considerations

The DS1882Z-050+ is a pin-compatible alternative in a 16-pin SO package. For software compatibility with legacy designs, Configuration Option 2 mimics the DS1808 behavior. No direct single-source replacements are documented; verify I²C addressability and supply voltage ranges for cross-reference.