ALD2332SAL

Overview

The ALD2332SAL is a dual precision CMOS voltage comparator with push-pull output drivers, manufactured by Advanced Linear Devices. It operates on a single +4V to +10V or dual ±5V supply. Key electrical parameters include a typical input bias current of 10pA, a response time of 180ns for TTL-level inputs, and a high output sinking current of 50mA. The device features an extremely low input offset voltage (typically 0.5mV for the standard version) and a common mode rejection ratio of 80dB. It is housed in an 8-pin SOIC package.

Feature Summary

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

Applications

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

Procurement Notes

Verify the specific suffix 'SAL' corresponds to the 8-lead Small Outline Integrated Circuit (SOIC) package variant. Confirm that the base model ALD2332 meets the required input offset voltage specifications, as variants like ALD2332A and ALD2332B offer tighter tolerances. Ensure the operating temperature range of 0°C to +70°C aligns with the system environment requirements.

Selection Notes

Select this component when application requires direct drive capability for loads such as relays or LEDs without intermediate buffering. The push-pull architecture simplifies design by eliminating the need for external pull-up resistors found in open-drain comparators. Consider the ALD2332A or ALD2332B if stricter input offset voltage limits are necessary compared to the standard ALD2332.

Part Context

This part belongs to the ALD2332 family of dual precision voltage comparators built on silicon gate EPAD CMOS technology. It shares pinout compatibility with industry-standard LM193 type comparators. The family includes variants with different performance grades (A/B) and output configurations, such as the open-drain ALD2331.

Replacement Considerations

Public confirmed substitute part numbers: None identified in official documentation.

FAQ

Does the ALD2332 require external pull-up resistors?

No, the ALD2332 features push-pull outputs that can source and sink current, eliminating the need for external pull-up resistors.

What is the maximum output sinking current?

The device provides a high output sinking current of typically 50mA per output.