MAX6193AESA+

Overview

The MAX6193AESA+ is a precision, micropower, low-dropout voltage reference from the MAX6190–MAX6195/MAX6198 family. It provides a fixed output voltage of 3.000V with an initial accuracy of ±5mV and a maximum temperature coefficient of 5ppm/°C. The device draws a maximum quiescent supply current of 35µA and supports source and sink currents up to 500µA. It operates within a supply voltage range of 3.2V to 12.6V and features internal compensation for stability with capacitive loads up to 2.2nF.

Feature Summary

• Proprietary curvature-correction circuit combined with laser-trimmed thin-film resistors ensures high initial accuracy and very low temperature coefficient.
• Micropower series-mode architecture maintains a maximum quiescent supply current of 35µA that remains virtually immune to input voltage variations.
• Internally compensated design guarantees fast settling times and stable operation with capacitive loads ranging from 0 to 2.2nF.

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 'A' indicates the required ±5mV initial accuracy tier and 'E' denotes the SO-8 package. Confirm the '+' suffix aligns with lead-free/RoHS compliance requirements for your assembly process. Ensure the input voltage source can provide transient currents during turn-on if operating near minimum dropout conditions.

Selection Notes

Select this component when a fixed 3V reference is needed with tight accuracy constraints in battery-powered designs. The low quiescent current makes it suitable for extending battery life compared to shunt references. Verify that the load current requirements do not exceed the 500µA sourcing/sinking capability and that the input voltage stays within the specified dropout limits.

Part Context

This part belongs to the Maxim Integrated MAX6190–MAX6195/MAX6198 family of precision bandgap references. The family shares common architectural features including proprietary curvature correction and laser trimming. Variations across the family primarily involve different fixed output voltages and initial accuracy grades, while maintaining similar power consumption and package options.

Replacement Considerations

Other members of the MAX6190–MAX6195/MAX6198 family share identical pinouts and functional characteristics. Suitable substitutes include MAX6190 through MAX6195 variants or MAX6198, provided their specific output voltage and accuracy grades match the application requirements.