The CA3094AT is a silicon monolithic integrated circuit that combines a programmable unijunction transistor (PUT), a sensitive gate silicon controlled rectifier (SCR), and an operational amplifier on a single chip. It is designed for use in timing, voltage sensing, and control applications.

Applications

• Timing Circuits
• Voltage Comparators
• SCR Triggers
• Alarm Systems
• Phase Control Circuits

Features

• Programmable Unijunction Transistor (PUT)
• Sensitive Gate Silicon Controlled Rectifier (SCR)
• Operational Amplifier
• High Input Sensitivity
• Low Standby Power Consumption

Benefits

• Versatile Functionality: Combines multiple functions in a single IC, reducing component count and board space.
• Precise Timing: The PUT allows for accurate and repeatable timing intervals.
• Sensitive Triggering: The SCR can be triggered with very low gate currents.
• Easy to Use: Requires minimal external components for operation.
• Cost-Effective: Provides multiple functions at a low cost.

Additional Details

The CA3094AT is typically supplied in a TO-5 package. The PUT can be programmed for various timing applications by adjusting the external resistor values. The SCR has a typical gate trigger current of a few microamperes. The operational amplifier section can be used for amplification, buffering, or comparison functions. Because the component is marked as End-of-Life, it is crucial to consult datasheets and consider replacements for any future designs.