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 and draws a maximum quiescent supply current of 35µA. It features a dropout voltage of 100mV at a 500µA load current and supports source and sink currents up to 500µA. The component is housed in an 8-pin SO package and functions reliably across a temperature range of -40°C to +85°C.

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 guarantees stability with capacitive loads up to 2.2nF without external components.
• Capable of sourcing and sinking load currents up to 500µA while maintaining low dropout performance.

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 'ES' corresponds to the standard 8-pin SO package configuration as documented in the official datasheet ordering information. Confirm that the '+E' designation indicates lead-free and RoHS-compliant manufacturing standards. Ensure the selected variant matches the required initial accuracy grade (B grade) and operating temperature range specifications for the intended application environment.

Selection Notes

Select this component when a stable 5V reference is required for battery-powered or low-power systems due to its minimal 35µA quiescent current consumption. The internal compensation allows for simplified board layouts by eliminating the need for external stabilization capacitors. Consider the 100mV dropout characteristic to ensure adequate headroom between the input supply and the 5V output under maximum load conditions.

Part Context

This part belongs to the MAX6190–MAX6195/MAX6198 family of precision, micropower, low-dropout voltage references. The family shares common architectural features including curvature correction and laser trimming but differs in fixed output voltages ranging from 1.25V to 5.0V. All members maintain similar power efficiency and stability characteristics suitable for portable and industrial instrumentation.

Replacement Considerations

Other members of the MAX619x family, such as MAX6190 through MAX6194, share identical pinouts and package types but provide different fixed output voltages. Direct substitution requires verifying that the alternative voltage level meets the system requirements. Automotive qualified variants are available with the '/V' suffix if extended reliability standards are necessary.