The LM4250CJ8 is a programmable operational amplifier originally manufactured by National Semiconductor, and later by Harris Corporation and others. It is designed for ultra-low power applications and offers external programmability for optimizing power consumption and performance. The programming feature allows the user to adjust parameters such as supply current, slew rate, and input bias current to suit specific application requirements.

Applications

• Battery-powered instruments
• Portable data acquisition systems
• Remote sensor amplifiers
• Hearing aids
• Medical instrumentation
• Long-life timers
• Micropower comparators

Features

• Ultra-low power consumption
• External programmability of supply current
• Wide supply voltage range: ±1.5V to ±18V
• Low input bias current
• High input impedance
• High open-loop gain
• Internally compensated

Benefits

• Extended Battery Life: Ultra-low power consumption maximizes battery life in portable devices.
• Flexible Performance: Programmability allows optimization for different application needs.
• Versatile Operation: Wide supply voltage range supports various power configurations.
• High Accuracy: Low input bias current and high input impedance ensure accurate signal amplification.
• Simplified Design: Internal compensation simplifies circuit design.

The LM4250CJ8's programmability is achieved through an external programming resistor. The value of this resistor determines the supply current of the amplifier, which in turn affects its other performance parameters. By selecting an appropriate resistor value, the user can trade off between power consumption and performance to achieve the optimal balance for a specific application. The device is packaged in an 8-pin DIP package.

This op-amp is particularly well-suited for applications where power conservation is paramount. Its flexibility and programmability make it a versatile choice for a wide range of low-power analog circuits.