FAN156L6X-F106

Overview

The FAN156L6X-F106 is a low voltage comparator manufactured by Fairchild Semiconductor, now part of ON Semiconductor. It features a single channel with push-pull, rail-to-rail output capabilities. The device operates on a single supply voltage ranging from 1.6V to 5.5V or dual supplies of ±0.8V to ±2.75V. It offers a typical input bias current of 10pA at 5.5V and provides high common-mode rejection ratio (CMRR) of 68dB and power supply rejection ratio (PSRR) of 80dB. The component utilizes a 6-MicroPak package.

Feature Summary

• Push-pull, rail-to-rail output configuration for full signal swing
• Ultra-low input bias current ensuring minimal loading on source circuits
• High common-mode and power supply rejection ratios for noise immunity

Applications

• General purpose voltage monitoring in portable electronics
• Threshold detection in battery-powered devices
• Signal conditioning in low-voltage analog circuits

Procurement Notes

Verify the manufacturer designation carefully, as Fairchild Semiconductor products are now managed under ON Semiconductor branding. Ensure the datasheet reflects the updated corporate identity while maintaining technical consistency. Confirm the specific suffix -F106 corresponds to the required bulk packaging format. Cross-reference the active status to ensure continued availability within the current product lifecycle.

Selection Notes

Select this component when a single comparator with rail-to-rail output is required for low-voltage applications. The wide supply range supports both single and dual supply systems. Consider the 6-MicroPak package for space-constrained designs. Verify that the 10pA input bias current meets the sensitivity requirements of the specific application circuitry.

Part Context

This comparator belongs to the FAN156 series of low voltage operational amplifiers and comparators. The series is designed for portable and battery-operated equipment where power efficiency is critical. The MicroPak package provides a compact footprint suitable for modern surface-mount assembly processes. The device represents a transition point in semiconductor manufacturing history between Fairchild and ON Semiconductor.

Replacement Considerations

Check for direct pin-compatible alternatives within the ON Semiconductor portfolio. Verify electrical parameters such as supply voltage range and output type match the original design requirements. Ensure the replacement maintains the same package dimensions for board compatibility.