The KA339AD is a quad differential comparator manufactured by Fairchild/ON Semiconductor. It consists of four independent voltage comparators designed to operate from a single power supply over a wide voltage range. These comparators can also operate from split power supplies and feature low input bias current and low input offset voltage.

Applications:

• Voltage comparators
• Threshold detectors
• Zero-crossing detectors
• Relaxation oscillators
• High-voltage digital logic gates

Features:

• Single supply or split supply operation
• Low input bias current
• Low input offset voltage
• Low supply current drain
• Open collector outputs

Benefits:

• Versatile comparator suitable for a wide range of applications
• Easy to use with single or split power supplies
• High accuracy due to low input bias current and offset voltage
• Low power consumption
• Ability to drive multiple loads

Additional Details:

The KA339AD can operate with a single supply voltage ranging from 2V to 36V, or with split supplies of ±1V to ±18V. It features open collector outputs, which allows it to be used in wired-OR configurations and to drive a variety of loads. The low input bias current and low input offset voltage ensure accurate comparison even with small input signals. The low supply current drain minimizes power consumption, making it suitable for battery-powered applications. The operating temperature range is typically -25°C to +85°C. The KA339AD is available in various packages, including DIP and SOIC. The open collector outputs require external pull-up resistors to define the output logic levels. The comparators have a typical response time in the microseconds range. The high input impedance minimizes loading effects on the input signal sources.