MAX6198BESA+T

Overview

The MAX6198BESA+T is a precision, micropower, low-dropout voltage reference featuring an internal 4.096V output. It operates within a supply voltage range of (VOUT + 0.2V) to 12.6V and draws a maximum quiescent current of 35µA. The device guarantees an initial accuracy of ±5mV and a temperature coefficient of less than 5ppm/°C. It supports source and sink currents up to 500µA with a dropout voltage of 100mV at full load. The component is housed in an 8-pin SO package and functions reliably across an industrial 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 allows stability with capacitive loads up to 2.2nF without external 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 'B' corresponds to the required ±5mV initial accuracy specification before procurement. Confirm that the '+T' designation indicates tape-and-reel packaging if applicable to your assembly process. Ensure the input voltage source can provide transient currents exceeding nominal levels during turn-on to guarantee reliable operation.

Selection Notes

Select this component when a fixed 4.096V reference is required with minimal power consumption. It is suitable for battery-powered applications due to its series-mode efficiency and immunity to line regulation changes. Consider the 100mV dropout characteristic to ensure adequate headroom between the supply rail and the output voltage under maximum load conditions.

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 low-dropout capabilities. The MAX6198 specifically provides a 4.096V output, distinguishing it from other variants offering voltages such as 1.25V or 5.0V.

Replacement Considerations

Direct substitutes within the same family include MAX6198AESA+T (±2mV accuracy) and MAX6198CESA+T (±10mV accuracy). Verify that alternative packages or suffixes maintain the required accuracy class and thermal performance specifications.