MAX6168BESA

Overview

The MAX6168BESA is a precision micropower low-dropout voltage reference IC manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 1.8V with a tolerance of ±0.28%. The device operates within an input voltage range of 2.5V to 12.6V and delivers an output current of 5 mA. It features a temperature coefficient of 10ppm/°C, ensuring high stability across varying thermal conditions. Noise performance is specified at 22µVp-p (0.1Hz to 10Hz) and 25µVrms (10Hz to 10kHz). The component is housed in an 8-SOIC package and supports surface mount installation.

Feature Summary

• Provides a stable fixed 1.8V output with high precision tolerance
• Features low noise characteristics for sensitive analog applications
• Operates as a micropower low-dropout regulator with high output current capability

Applications

• Precision data acquisition systems requiring stable reference voltages
• Battery-powered instrumentation benefiting from low power consumption
• High-resolution analog-to-digital converter (ADC) references

Procurement Notes

Verify the specific suffix designation when ordering, as it may indicate packaging variations such as tape-and-reel versus tube. Confirm RoHS compliance status and lead-free manufacturing details with the supplier. Ensure the selected variant matches the required operating temperature range and package dimensions for your PCB layout. Cross-reference part numbers carefully to avoid confusion between similar series members.

Selection Notes

Select this component when a fixed 1.8V reference is required with tight tolerance and low drift. Consider the 5mA output current capability against load requirements. Evaluate the 10ppm/°C temperature coefficient against system accuracy needs. Compare noise specifications with other series members if lower noise is critical. Ensure input voltage remains within the 2.5V to 12.6V operational window.

Part Context

This part belongs to the MAX6161-68 series of precision voltage references. The series offers various fixed output voltages and tolerances while maintaining consistent micropower and low-dropout characteristics. These devices are designed for applications demanding high accuracy and stability in compact surface-mount packages.

Replacement Considerations

The MAX6168BESA+T is a compatible variant offering identical electrical specifications but supplied in tape-and-reel packaging instead of tubes. Verify that the replacement matches the exact 1.8V output and ±0.28% tolerance requirements.