MAX6167AESA

Overview

The MAX6167AESA+ is a precision, micropower, low-dropout voltage reference from the MAX6161–MAX6168 series. It provides a fixed output voltage of 4.5V with an initial accuracy of ±2mV and a maximum temperature coefficient of 5ppm/°C. The device operates within an input voltage range of (VOUT + 200mV) to 12.6V and draws a typical quiescent supply current of 100μA. It can source up to 5mA or sink 2mA of load current without requiring external compensation capacitors or biasing resistors.

Feature Summary

• Features proprietary curvature-correction circuitry and laser-trimmed thin-film resistors for high precision.
• Offers supply current virtually independent of supply voltage, maximizing efficiency in battery-operated systems.
• Internally compensated design eliminates the need for external frequency-stability capacitors.
• Capable of sourcing 5mA and sinking 2mA load currents while maintaining stability.

Applications

• Analog-to-Digital Converters (ADCs)
• Portable Battery-Powered Systems
• Notebook Computers
• PDAs, GPS, DMMs
• Cellular Phones

Procurement Notes

Verify the specific suffix 'A' indicates the ±2mV initial accuracy and 5ppm/°C temperature coefficient variant. Confirm the package code corresponds to the 8-pin SO outline. Ensure the component meets RoHS compliance requirements if specified for the project. Check for lead-free packaging status as indicated by the '+' designation in the ordering information.

Selection Notes

Select this part when a stable 4.5V reference is required with minimal board space due to the lack of external capacitor needs. Consider the 100μA quiescent current for power-sensitive designs. Verify that the input voltage remains within the specified dropout limits relative to the 4.5V output across all operating conditions.

Part Context

This component belongs to the MAX6161–MAX6168 family of precision voltage references manufactured by Analog Devices / Maxim Integrated. The family shares identical pinouts and general electrical characteristics, differing primarily in their fixed output voltage options ranging from 1.25V to 5V. All variants utilize the same 8-pin SO package and BiCMOS process technology.

Replacement Considerations

Other members of the MAX6161–MAX6168 series are pin-compatible but offer different fixed output voltages. Direct substitution requires matching the 4.5V output requirement. Verify that any alternative device maintains similar quiescent current and dropout voltage specifications for equivalent performance.