ALD2331APAL

Overview

The ALD2331APAL is a dual precision voltage comparator utilizing EPAD® CMOS technology in an 8-pin PDIP package. It operates on single supplies from 3V to 10V or dual supplies of ±1.5V to ±5V. Key electrical parameters include a typical supply current of 110µA, input bias current of 10pA, and open-drain outputs capable of sinking up to 50mA. The device features a response time of 300ns for TTL level inputs and maintains an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrates ultra-low input offset voltages and currents with high-current output drivers
• Provides wired-OR open-drain outputs compatible with various logic families
• Supports flexible pull-up resistor configurations for different load requirements

Applications

• High source impedance voltage comparison circuits
• Dual limit window comparators
• Photo-detector sensor circuits
• Battery operated instruments
• Remote signal detection

Procurement Notes

Verify the specific suffix 'PAL' corresponds to the 8-pin Plastic DIP package configuration. Confirm that the 'A' designation meets the required input offset voltage specifications for the application. Ensure the component version aligns with lead-free manufacturing standards if RoHS compliance is mandatory for the project.

Selection Notes

Select this component when low standby power consumption is critical alongside high output drive capability. The wide common-mode input voltage range including ground makes it suitable for single-supply applications. Consider the open-drain architecture if interfacing with different voltage domains via external pull-up resistors.

Part Context

This part belongs to the ALD2331 family of monolithic dual precision voltage comparers. It shares the industry-standard pinout of the LM193 but utilizes advanced silicon gate EPAD® CMOS technology. This integration allows for superior performance characteristics compared to older bipolar technologies while maintaining compatibility with standard layouts.

Replacement Considerations

The datasheet specifies that the ALD2331 series maintains a pinout identical to the LM193 industry standard voltage comparator.