MAX6195BESA+

Overview

The MAX6195BESA+ is a precision, micropower, low-dropout series-mode voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 5.000V with an initial accuracy of ±2mV and a maximum temperature coefficient of 5ppm/°C. The device operates within a supply voltage range of VOUT + 0.2V to 12.6V, drawing a maximum quiescent supply current of 35µA. It features a dropout voltage of 100mV at a 500µA load current, with line regulation of 8µV/V and load regulation of 0.12µV/µA. The component is housed in an 8-pin SO package and supports capacitive loads up to 2.2nF.

Feature Summary

• Utilizes proprietary curvature-correction circuitry and laser-trimmed thin-film resistors for high precision.
• Series-mode architecture ensures supply current remains virtually independent of input voltage variations.
• Internally compensated design allows stability with capacitive loads up to 2.2nF without external components.
• Capable of sourcing and sinking currents up to 500µA while maintaining low dropout voltage.

Applications

• Hand-Held Instruments
• Analog-to-Digital and Digital-to-Analog Converters
• Industrial Process Control
• Precision 3V/5V Systems
• Hard-Disk Drives

Procurement Notes

Verify the specific suffix 'B' corresponds to the required ±2mV initial accuracy specification during procurement. Confirm that the 'ES' package code matches the 8-lead Small Outline (SO) footprint requirements for the target PCB layout. Ensure the '+ ' designation aligns with lead-free and RoHS compliance standards mandated by the end application's regulatory environment.

Selection Notes

Select this component when a stable 5V reference is required with minimal power consumption in battery-operated systems. The low quiescent current of 35µA makes it suitable for energy-constrained environments. Verify that the input voltage source can provide sufficient current during turn-on transients to ensure reliable operation under minimum dropout conditions.

Part Context

This part belongs to the MAX6190–MAX6195/MAX6198 family of precision voltage references. All members share identical pinouts, package styles, and core architectural features, differing primarily in their fixed output voltage levels and associated accuracy grades. The MAX6195 specifically targets applications requiring a nominal 5V reference output.

Replacement Considerations

Direct replacements within the same family include MAX6195AESA+ and MAX6195CESA+, which offer different initial accuracy grades. Cross-family alternatives such as the MAX6225 or MAX6198 series may be considered if different output voltages or noise characteristics are acceptable.