STMicroelectronics

MC33171D

MC33171D Description

The MC33171D is a general-purpose operational amplifier (op-amp) designed by STMicroelectronics, a leading manufacturer in the electronics industry. This op-amp is housed in an 8SOIC package and is intended for surface-mount applications. Despite being marked as obsolete, the MC33171D remains a robust choice for various linear amplifier applications due to its comprehensive set of features and performance capabilities.

MC33171D Features

• Wide Supply Voltage Range: The MC33171D operates within a supply voltage range of 4 V to 44 V, making it highly versatile for different power supply configurations.
• High Gain Bandwidth Product: With a gain bandwidth product of 2.1 MHz, this op-amp ensures high-frequency performance, ideal for applications requiring precise signal processing.
• Low Input Bias Current: The low input bias current of 20 nA minimizes the impact on the input signal source, ensuring accurate amplification even with high-impedance sources.
• Fast Slew Rate: A slew rate of 2V/µs allows the MC33171D to handle high-frequency signals efficiently, reducing distortion and improving overall system performance.
• Low Supply Current: Consuming only 220µA of supply current, the MC33171D is energy-efficient, making it suitable for battery-powered and low-power applications.
• Low Input Offset Voltage: The 1 mV input offset voltage ensures minimal error in the amplified signal, contributing to high accuracy in signal processing.
• High Output Current: The ability to deliver 27 mA per channel allows the MC33171D to drive substantial loads, enhancing its applicability in various electronic circuits.
• Compliance and Packaging: The MC33171D is REACH unaffected and ROHS3 compliant, ensuring environmental safety and regulatory compliance. It is packaged in a tube, facilitating easy handling and storage.

MC33171D Applications

The MC33171D is well-suited for a variety of applications due to its general-purpose nature and robust performance characteristics. Some specific use cases include:

• Signal Conditioning: Ideal for amplifying and conditioning weak signals in sensor applications, ensuring accurate and reliable data transmission.
• Audio Amplifiers: Its high gain bandwidth product and low input bias current make it suitable for audio applications where high fidelity and minimal distortion are crucial.
• Transimpedance Amplifiers: The low input bias current and high output current capability make it an excellent choice for converting current signals to voltage signals in photodetector circuits.
• Precision Measurement Equipment: The low input offset voltage and high accuracy contribute to precise measurements in scientific and industrial instrumentation.
• Battery-Powered Devices: The low supply current ensures efficient power usage, making it suitable for portable and battery-operated devices.

Conclusion of MC33171D

The MC33171D, despite its obsolete status, remains a valuable component in the electronics industry due to its wide supply voltage range, high gain bandwidth product, and low input bias current. Its fast slew rate and low supply current make it an efficient choice for high-frequency and low-power applications. The MC33171D's compliance with environmental regulations and its robust packaging further enhance its appeal. Whether used in signal conditioning, audio amplification, or precision measurement equipment, the MC33171D offers reliable performance and versatility, making it an ideal choice for engineers and designers seeking a general-purpose op-amp.