ALD4302ASBL

Overview

The ALD4302ASBL is a monolithic quad voltage comparator from Advanced Linear Devices, utilizing silicon gate CMOS technology. It operates on a single +5V or dual ±5V supply with a total supply current of 600µA to 1000µA. The device features a high gain of 30V/mV to 100V/mV and an input offset voltage of 1mV to 51mV. Response times are 120ns for TTL-level inputs and 400ns for 5mV overdrive. It provides push-pull outputs capable of sinking up to 60mA and sourcing 2mA, housed in a 14-pin SOIC package.

Feature Summary

• Extremely low input bias currents typically at 10pA, virtually eliminating source impedance effects
• Push-pull output stage providing high sinking current capability of 60mA
• CMOS, NMOS, and TTL compatible logic levels
• Input voltage range includes ground for single-supply operation

Applications

• MOSFET driver circuits
• High source impedance voltage comparison
• Multiple limit window comparators
• Power supply voltage monitoring
• Photo-detector sensor circuits

Procurement Notes

Verify the specific suffix 'SBL' corresponds to the 14-pin Small Outline Plastic Dip (SOIC) package variant. Confirm lead-free status if required by environmental standards. Ensure the operating temperature range aligns with the application environment, as this package version supports 0°C to +70°C. Cross-reference the manufacturer's ordering information to validate availability and exact mechanical dimensions.

Selection Notes

Select this component when high input impedance and low standby power are critical alongside significant output drive capability. The inclusion of ground-referenced inputs makes it suitable for single-supply applications without level shifting. Consider the 120ns response time for general-purpose signal detection. Verify that the 60mA sink current meets load requirements without exceeding thermal limits due to internal power dissipation.

Part Context

This part belongs to the ALD4302A/ALD4302 family of quad precision CMOS voltage comparators. It is designed for precision analog switching and signal conditioning tasks where low power consumption and high speed are necessary. The series offers flexibility through wired-OR connections and compatibility with various logic families.

Replacement Considerations

The datasheet notes compatibility with open drain circuits such as the ALD2301 and ALD2303 for wired-OR configurations. No direct cross-manufacturer substitutes are explicitly confirmed in the provided documentation.