MAX6079ALA25+

Overview

The MAX6079ALA25+ is a low-noise, high-precision series voltage reference housed in an 8-pin hermetically sealed ceramic LCC package. It provides a fixed output of 2.5V with ±0.04% initial accuracy and a maximum temperature drift of 6ppm/°C. The device operates within a supply voltage range of 2.8V to 5.5V, consuming 160µA of quiescent current. It supports up to 10mA of load current sourcing and sinking, features a dedicated filter pin for wideband noise reduction, and includes an enable/shutdown control. Thermal hysteresis is typically 10ppm.

Feature Summary

• Hermetically sealed 8-pin ceramic LCC package ensures stable performance against humidity and mechanical stress
• Integrated filter input allows connection of a capacitor to reduce high-frequency noise spectral density
• Independent force (OUTF) and sense (OUTS) outputs enable Kelvin connections to cancel line voltage drops
• Active-high enable pin controls normal operation or reduces supply current to less than 1µA

Applications

• High-accuracy industrial and process control systems
• Precision instrumentation requiring stable references
• High-resolution ADCs and DACs
• Precision current sources

Procurement Notes

Verify the specific ordering suffix to confirm packaging format and RoHS compliance status. The datasheet indicates that the 'T' suffix denotes tape and reel packaging, while absence of the suffix may indicate tube packaging. Confirm the exact part number matches the required output voltage and accuracy grade before procurement. Ensure the supplier provides documentation verifying the lead-free and environmental compliance attributes associated with the '+' designation.

Selection Notes

Select this component when system accuracy requires minimal long-term drift and thermal hysteresis. The ceramic package is suitable for environments where plastic packages might suffer from moisture-induced mechanical stress. Consider the trade-off between turn-on settling time and noise reduction if utilizing the filter pin. Verify that the supply voltage remains within the 2.8V to 5.5V range to maintain guaranteed line regulation and ripple rejection specifications.

Part Context

The MAX6079 is part of Maxim Integrated's precision voltage reference family, designed for applications demanding superior stability. It utilizes a bipolar process technology. The device distinguishes itself through its hermetic ceramic construction, which offers better long-term drift performance compared to standard plastic packages. It is intended for use in critical analog signal chains where reference integrity directly impacts overall system resolution.

Replacement Considerations

Consult the manufacturer's official documentation for verified substitute part numbers. Cross-referencing should focus on matching the 2.5V output, ceramic LCC package dimensions, and electrical characteristics such as noise and drift.