ALD2331BPAL

Overview

The ALD2331BPAL is a dual precision voltage comparator manufactured by Advanced Linear Devices Inc. It utilizes EPAD® CMOS technology and operates on a single supply of 3V to 10V or a dual supply of ±1.5V to ±5V. The device features an input bias current of 20pA maximum, a typical supply current of 180µA, and open-drain outputs capable of sinking 50mA. It is housed in an 8-PDIP package with an operating temperature range of 0°C to 70°C.

Feature Summary

• Ultra-low input bias current for high source impedance applications
• Open-drain output configuration supporting wired-OR connections
• CMOS, NMOS, and TTL compatible logic levels
• High output sink current capability

Applications

• Dual limit window comparator circuits
• Photo-detector sensor monitoring systems
• Battery operated instruments
• Remote signal detection circuits

Procurement Notes

Verify the component matches the specific ALD2331B grade requirements for offset voltage specifications. Confirm the 8-pin PDIP package type aligns with board layout constraints. Ensure the operating temperature range meets the environmental conditions of the target application before finalizing procurement.

Selection Notes

Select this part when low standby power consumption is critical alongside high output drive capability. The open-drain architecture allows flexibility in selecting pull-up voltages independent of the supply rail. Consider the B-grade offset voltage limits if higher precision than the standard model is required.

Part Context

This component belongs to the ALD2331 family of dual precision comparators. It shares pinout compatibility with industry-standard LM193 devices. The 'PAL' suffix indicates an 8-pin plastic DIP package variant within the series.

Replacement Considerations

The datasheet notes pinout compatibility with LM193 industry standard voltage comparators.