MAX6168BESA+

Overview

The MAX6168BESA+ is a precision, low-dropout, micropower voltage reference from the MAX6161–MAX6168 series. It provides a fixed output voltage of 1.8V with an initial accuracy of ±2mV and a maximum temperature coefficient of 5ppm/°C. The device operates within an input voltage range of 2.0V to 12.6V and draws a typical quiescent supply current of 100μA. It can source up to 5mA or sink 2mA of load current while maintaining stability with capacitive loads. The component is housed in an 8-pin SO package and functions across an extended temperature range of -40°C to +85°C.

Feature Summary

• Features proprietary curvature-correction circuitry and laser-trimmed thin-film resistors for high precision.
• Offers supply current virtually independent of supply voltage, eliminating external biasing resistors.
• Internally compensated design removes the need for external compensation capacitors.
• Capable of sourcing 5mA and sinking 2mA load currents with low dropout voltage.

Applications

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

Procurement Notes

Verify the specific suffix code against the manufacturer's selector guide to confirm the exact initial accuracy and temperature coefficient grades available for this part number. Ensure the ordering documentation matches the required performance specifications for the intended application environment.

Selection Notes

Select this component when a stable 1.8V reference is required with minimal board space due to the lack of external capacitor requirements. Consider the 5mA sourcing capability for driving moderate loads directly. Evaluate the low quiescent current benefits for battery-operated designs requiring extended operational life.

Part Context

This device belongs to the MAX6161–MAX6168 family of precision voltage references manufactured by Analog Devices / Maxim Integrated. The family shares common architectural features including micropower operation and low-dropout characteristics, differentiated primarily by their fixed output voltage options ranging from 1.25V to 5V.

Replacement Considerations

Other members of the MAX6161–MAX6168 series may serve as functional replacements if different output voltages are acceptable. Verify pin compatibility and thermal performance before substituting with other precision reference devices from the same manufacturer.

FAQ

Does the MAX6168BESA+ require an external compensation capacitor?

No, the internally compensated devices do not require an external compensation capacitor.

What is the maximum load current the MAX6168BESA+ can source?

The device can typically source 5mA of load current.