MAX6164BESA+T

Overview

The MAX6164BESA+T is a precision, micropower, low-dropout voltage reference from the MAX6161–MAX6168 series. It provides a fixed output voltage of 4.096V with an initial accuracy of ±2mV (A grade) or ±4mV (B grade). The device operates within an input voltage range of VOUT + 0.2V to 12.6V and draws a typical quiescent supply current of 100μA. It features a maximum temperature coefficient of 5ppm/°C (A grade) or 10ppm/°C (B grade), ensuring stability across the -40°C to +85°C extended temperature range.

Feature Summary

• Proprietary curvature-correction circuitry combined with laser-trimmed thin-film resistors for high precision
• Series-mode architecture eliminates the need for external biasing resistors required by shunt references
• Internally compensated design removes the requirement for external compensation capacitors
• Supply current remains virtually independent of input voltage variations

Applications

• Analog-to-Digital Converters (ADCs)
• Portable battery-powered systems
• Notebook computers
• Precision +3V/+5V systems

Procurement Notes

Verify the specific suffix code against the manufacturer's selector guide to confirm the exact initial accuracy and temperature coefficient grades. Ensure the ordering information matches the required output voltage and package type. Confirm RoHS compliance status as indicated by the plus sign in the part number. Cross-reference the datasheet revision date to ensure compatibility with latest electrical specifications.

Selection Notes

Select this component when a stable 4.096V reference is needed with minimal board space due to the lack of external capacitor requirements. Consider the A-grade version for tighter accuracy and lower temperature drift compared to the B-grade. Evaluate the low dropout characteristic for applications where the input voltage is close to the output level. Verify that the load current requirements fall within the sourcing and sinking capabilities specified in the datasheet.

Part Context

This device belongs to the MAX6161–MAX6168 family of precision voltage references. All members share identical pinouts, package styles, and core architectural features, differing primarily in their fixed output voltage levels. The family is designed to offer a unified solution for various system voltage requirements while maintaining consistent performance characteristics such as micropower consumption and low dropout operation.

Replacement Considerations

Direct functional replacements within the same family include other MAX616x variants with different output voltages if the system allows for voltage adjustment. Verify pin compatibility and thermal characteristics before substituting with components from other manufacturers offering similar series references.