ALD2331BSAL

Overview

The ALD2331BSAL is a dual precision voltage comparator utilizing EPAD® CMOS technology in an 8-pin SOIC package. It operates on single supplies from 3V to 10V or dual supplies of ±1.5V to ±5V. Key electrical characteristics 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

• Ultra-low input bias current typically at 10pA with high input impedance
• Open-drain output configuration supporting wired-OR connections and flexible pull-up voltages
• High output sink current capability reaching 50mA
• CMOS, NMOS, and TTL logic compatibility

Applications

• Dual limit window comparators
• Photo-detector sensor circuits
• Battery operated instruments
• Remote signal detection
• Power supply voltage monitors

Procurement Notes

Verify the specific suffix 'SAL' confirms the 8-pin Small Outline Integrated Circuit (SOIC) package variant. Confirm that the 'B' designation aligns with the required input offset voltage specifications for the target application. Ensure the component meets RoHS3 compliance standards as indicated by the manufacturer documentation.

Selection Notes

Select this component when low standby power consumption is critical alongside high output drive requirements. The wide common-mode input voltage range including ground makes it suitable for single-supply applications. Verify that the 50mA sink current meets load requirements and that external pull-up resistors are included in the design.

Part Context

This part belongs to the ALD2331 family of dual precision voltage comparers manufactured by Advanced Linear Devices Inc. The series utilizes advanced silicon gate EPAD® CMOS technology to achieve high performance in standard industry pinouts. It serves as a high-precision alternative for analog signal processing tasks requiring low power and fast response times.

Replacement Considerations

The datasheet specifies that the pinout matches the LM193 industry standard voltage comparator.