ALD4302PBL

Overview

The ALD4302PBL is a quad precision CMOS voltage comparator with push-pull driver. It features four independent comparators in a single package, offering high input impedance and low bias current. The device operates on a single +5V or dual ±5V supply. Key electrical parameters include a typical response time of 120ns for TTL inputs and 400ns for 5mV overdrive. It provides a high output sinking current of typically 60mA and supports loads as low as 200Ω.

Feature Summary

• Monolithic quad voltage comparator built with advanced silicon gate CMOS technology
• Push-pull outputs capable of sourcing and sinking significant current without external buffers
• Extremely low input bias currents to virtually eliminate source impedance effects
• CMOS, NMOS, and TTL compatible logic levels

Applications

• MOSFET driver circuits
• High speed LED drivers
• Multiple limit window comparators
• Battery operated instruments
• Remote signal detection

Procurement Notes

Verify the specific suffix 'PBL' corresponds to the Plastic DIP-14 package variant when ordering. Confirm RoHS compliance status directly with Advanced Linear Devices, as leaded versions may be available upon request. Ensure the design accounts for the operating temperature range associated with this specific package type.

Selection Notes

Select the ALD4302PBL for applications requiring multiple comparators with high drive capability in a compact form factor. It is suitable for designs needing push-pull outputs to drive moderate loads directly. Consider the low power consumption per channel if battery life is a critical constraint in the system architecture.

Part Context

This component belongs to the ALD4302A/ALD4302 family of quad precision voltage comparators manufactured by Advanced Linear Devices. The PBL suffix specifically denotes the 14-pin Plastic DIP package configuration within this series, distinguishing it from SOIC or CERDIP variants.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the documentation.

FAQ

Can the ALD4302PBL outputs be wired-OR connected?

Yes, the outputs can be used in wired-OR connections without pull-up resistors, though care must be taken to ensure the sinking capability handles the sourced current from other devices.

What is the input voltage range relative to ground?

The input voltage range includes ground, making the comparator ideal for single-supply low-level signal detection applications.