ALD4301SBL

Overview

The ALD4301SBL is a quad precision CMOS voltage comparator featuring open-drain drivers. It operates on single (+5V) or dual (±5V) supplies within a 3V to 10V range. Key electrical parameters include a typical input bias current of 10pA, response time of 300ns, and output sinking current of 60mA. The device provides high gain and low power dissipation of 55µA per comparator. It supports wired-OR connections and TTL/CMOS compatibility.

Feature Summary

• Extremely low input bias currents typically eliminate source impedance effects
• Open-drain outputs allow flexible wired-OR configurations with external voltages
• High output sinking capability reduces the need for separate buffer drivers
• Compatible with CMOS, NMOS, and TTL logic families

Applications

• High source impedance voltage comparison circuits
• Dual or quad limit window comparators
• Photo-detector sensor circuits
• Power supply voltage monitors
• Battery operated instruments

Procurement Notes

Verify the specific suffix 'SBL' corresponds to the 14-pin Small Outline Plastic Dip (SOIC) package configuration. Confirm that the component meets lead-free requirements if RoHS compliance is mandatory for the assembly process. Ensure the operating temperature range aligns with the 0°C to +70°C specification for this package variant.

Selection Notes

Select this component when applications require very low input currents and minimal standby power consumption while maintaining high output drive capabilities. It is suitable for detecting low-level signals from high-impedance sources. Consider the open-drain output structure for interfacing with different voltage domains or implementing wired-OR logic arrangements in the system design.

Part Context

This part belongs to the ALD4301A/ALD4301 series manufactured by Advanced Linear Devices, Inc. It is functionally equivalent to LM393 types but utilizes advanced silicon gate CMOS technology. The series includes variants such as the ALD4301APBL and ALD4301ADB, offering different package options like CERDIP and standard DIP for various environmental and mounting requirements.

Replacement Considerations

The datasheet identifies the ALD4301 as pinout and functional equivalent to LM393 types. Verify that any substitute maintains the open-drain output configuration and compatible supply voltage ranges.