MAX6168BESA+T

Overview

The MAX6168BESA+T is a precision, micropower, low-dropout voltage reference with an output voltage of 1.8V. It operates within an input voltage range of 2.5V to 12.6V and features a maximum temperature coefficient of 5ppm/°C and initial accuracy of ±2mV. The device draws a typical quiescent supply current of 100μA and can source up to 5mA or sink 2mA of load current. It is housed in an 8-pin SO package and functions reliably across an extended temperature range from -40°C to +85°C.

Feature Summary

• Utilizes proprietary curvature-correction circuitry and laser-trimmed thin-film resistors for high precision.
• Offers supply current virtually independent of the supply voltage, maximizing efficiency in battery-powered systems.
• Internally compensated design eliminates the need for external compensation capacitors.
• Capable of sourcing 5mA and sinking 2mA while maintaining stable operation with capacitive loads.

Applications

• Analog-to-Digital Converters (ADCs)
• Portable Battery-Powered Systems
• Notebook Computers
• PDAs, GPS, DMMs
• Cellular Phones

Procurement Notes

Verify the specific suffix 'B' indicates the required initial accuracy and temperature coefficient specifications against the official selector guide. Confirm the '+T' designation corresponds to the reel packaging format intended for surface-mount assembly. Ensure the component meets RoHS compliance requirements as indicated by the lead-free package marking.

Selection Notes

Select this part when a fixed 1.8V reference is required with minimal board space due to the lack of external capacitor needs. Consider the 5mA source capability for driving moderate loads directly. Evaluate the 5ppm/°C temperature stability against system drift requirements. Compare the 100μA quiescent current against stricter power budgets if lower consumption is necessary.

Part Context

This component belongs to the MAX6161–MAX6168 family of precision voltage references manufactured by Analog Devices / Maxim Integrated. The series provides various fixed output voltages ranging from 1.25V to 5V in a compact 8-pin SO package. These devices are designed for applications requiring high accuracy and low power consumption in portable electronics.

Replacement Considerations

Other members of the MAX6161–MAX6168 family share identical pinouts and electrical characteristics except for output voltage. Verify that alternative parts match the 1.8V output requirement and the specific accuracy grade defined by the 'B' suffix.