MAX1802EHJ

Overview

The MAX1802EHJ is a dual digital potentiometer manufactured by Analog Devices Inc./Maxim Integrated. It features two independent circuits, each with 65 taps and a resistance value of 45 kOhms. The device utilizes a serial interface for control and operates within a supply voltage range of 2.7V to 5.5V. It is housed in a 20-PDIP package and supports through-hole mounting.

Feature Summary

• Dual circuit configuration with 65 taps per channel
• Serial interface for digital control
• Logarithmic taper characteristic

Applications

• Audio characterization systems
• Audio preamplifier designs with attenuator
• Ratiometric output calculation applications

Procurement Notes

Verify component authenticity and datasheet revision status prior to integration. Confirm that the specific EHJ suffix aligns with required pinout and thermal specifications. Ensure compliance with applicable environmental directives for the target deployment region.

Selection Notes

Select this component when a logarithmic response profile is required for dual-channel attenuation or impedance adjustment. Evaluate the 45k Ohm resistance value against system load requirements. Consider the volatile memory type for applications where state retention is managed externally.

Part Context

This part belongs to the DS1802 series of digital potentiometers from Maxim Integrated. It provides a solid-state alternative to mechanical potentiometers, offering improved reliability and programmability in compact integrated circuit form factors suitable for embedded signal processing.

Replacement Considerations

No public confirmed substitute part numbers are available.