MAX6198AESA

Overview

The MAX6198AESA+ is a precision, micropower, low-dropout voltage reference featuring a fixed 4.096V output in an 8-pin SO package. It draws a maximum of 35µA quiescent supply current and offers ±5mV initial accuracy with a temperature coefficient under 5ppm/°C. The device supports source and sink currents up to 500µA with a dropout voltage of approximately 100mV at full load. It operates within a supply voltage range of 4.296V to 12.6V and maintains 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 drift.
• Micropower series-mode architecture provides virtually constant supply current regardless of input voltage variations, maximizing efficiency for battery-powered instruments.
• Internally compensated design allows for fast settling times and stable operation with capacitive loads up to 2.2nF without requiring external compensation components.

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 (e.g., + for lead-free/RoHS compliance) against your bill of materials. Confirm that the 8-SO package footprint matches your PCB layout. Ensure the input voltage remains above the minimum specified threshold to guarantee proper regulation and avoid excessive turn-on current draw during power-up sequences.

Selection Notes

Select this component when a fixed 4.096V reference is required with minimal static power consumption. It is suitable for applications needing both sourcing and sinking capabilities up to 500µA. Consider the low dropout characteristic if operating near the minimum supply voltage limit. Verify thermal performance requirements as power dissipation increases with higher load currents or elevated ambient temperatures.

Part Context

This part belongs to the MAX6190–MAX6195/MAX6198 family of precision bandgap references manufactured by Analog Devices / Maxim Integrated. The family shares common architectural features including micropower operation and internal compensation, differentiated primarily by their fixed output voltage levels and initial accuracy grades.

Replacement Considerations

Cross-reference with other members of the MAX619x family for different voltage outputs. Check for automotive qualified variants (indicated by /V suffix) if extended reliability standards are required. Verify pin compatibility with legacy designs using standard 8-SO packages.