MAX6198CESA+T

Overview

The MAX6198CESA+T is a precision, micropower, low-dropout voltage reference featuring a fixed output of 4.096V. It utilizes a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve high initial accuracy and very low temperature coefficient. The device draws a maximum quiescent supply current of 35µA, making it suitable for battery-powered instruments. It guarantees load regulation for source and sink currents up to 500µA with a dropout voltage of 200mV at full load. The component operates within an input voltage range of VOUT + 0.2V to 12.6V and is housed in an 8-pin SO package.

Feature Summary

• Proprietary curvature-correction circuit combined with laser-trimmed thin-film resistors ensures high initial accuracy and minimal temperature drift.
• Micropower series-mode architecture maintains a maximum quiescent supply current of 35µA that remains virtually independent of input voltage variations.
• Low-dropout design supports both sourcing and sinking of up to 500µA load current while maintaining stability with capacitive loads up 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 'C' corresponds to the required ±10mV initial accuracy and <25ppm/°C temperature coefficient specifications. Confirm the '+T' designation indicates reel packaging and RoHS compliance. Ensure the input voltage source can provide sufficient current during turn-on transients to guarantee reliable operation.

Selection Notes

Select this part when a stable 4.096V reference is needed with strict power consumption limits. The series-mode topology offers superior efficiency compared to shunt references as load current is drawn only when required. Verify that the application does not require external output capacitance for stability, leveraging the internal compensation for board space savings.

Part Context

This component belongs to the MAX6190–MAX6195/MAX6198 family of precision voltage references manufactured by Analog Devices / Maxim Integrated. The family shares common architectural features including micropower operation and low-dropout capabilities, differentiated primarily by their fixed output voltages and accuracy grades.

Replacement Considerations

Other members of the MAX619x family (e.g., MAX6198BESA+, MAX6198AESA+) offer different accuracy and temperature coefficient grades but share the same pinout and functionality. Cross-referencing requires matching the specific output voltage and performance requirements.