The CA339 is a quad voltage comparator IC manufactured by Intersil Corporation. It consists of four independent precision voltage comparators designed for single or split supply operation. These comparators are characterized by low input bias current, low input offset voltage, and high voltage gain. The CA339 is widely used in various electronic applications requiring voltage comparison and level detection.

Applications:

• Window comparators
• Voltage level detectors
• Oscillators
• Zero-crossing detectors
• Relay drivers

Features:

• Single or split supply operation
• Low input bias current
• Low input offset voltage
• High voltage gain
• Open collector outputs
• Wide supply voltage range

Benefits:

• Versatile for a wide range of applications due to its quad configuration
• High accuracy in voltage comparison due to low input offset voltage
• Improved circuit performance with low input bias current
• Ease of interfacing with digital logic due to open collector outputs
• Flexibility in power supply configuration

Specifications:

The CA339 operates with a supply voltage range of 2V to 36V or ±1V to ±18V. The input bias current is typically 25 nA. The input offset voltage is typically 2 mV. The open-loop voltage gain is typically 100 dB. It is available in various packages, including DIP and SOIC.