ALD2332ASAL

Overview

The ALD2332ASAL is a dual precision CMOS voltage comparator with push-pull driver, manufactured by Advanced Linear Devices Inc. It operates on a single +4V to +10V or dual ±1.5V to ±5V supply. Key electrical parameters include a typical input bias current of 10pA, supply current of 175µA per comparator, and high output sinking current of 50mA. The device features a response time of 400ns for a 100mV input step and 180ns for TTL-level inputs.

Feature Summary

• Push-pull complementary outputs capable of sourcing and sinking current without external pull-up resistors
• Ultra-low input bias currents typically at 10pA for high source impedance applications
• Integrated input pre-amplifier and output buffers for precision analog comparison
• CMOS, NMOS, and TTL compatible logic levels

Applications

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

Procurement Notes

Verify the specific suffix 'SAL' corresponds to the SOIC-8 package and lead-free composition as defined in the manufacturer's ordering information. Confirm that the 'A' variant meets the required offset voltage specifications for the target application. Ensure compatibility with standard 8-pin surface mount footprints during PCB layout.

Selection Notes

Select this component when low standby power and high output current drive are required simultaneously. The push-pull architecture eliminates the need for external pull-up resistors found in open-drain designs. Consider the 10pA input bias current for high-impedance signal sources where leakage must be minimized.

Part Context

This part belongs to the ALD2332 family of dual precision voltage comparators built on EPAD® CMOS technology. It shares pinout compatibility with industry-standard LM193 type comparators while offering superior input impedance and lower power consumption characteristics suitable for battery-operated instruments.

Replacement Considerations

The datasheet notes compatibility with LM193 type pinouts. Verify functional equivalence regarding output drive capability and input offset voltage ranges before substitution.