**OP484FSZ: A Comprehensive Guide to the Quad Low Power Operational Amplifier**

The OP484FSZ from Analog Devices represents a significant achievement in analog integrated circuit design, offering a perfect blend of precision, low power consumption, and high integration. As a **quad low-power operational amplifier**, it packs four independent, high-performance op-amps into a single 14-lead SOIC package, making it an indispensable component for space-constrained and power-sensitive applications.

Engineered for excellence, the OP484FSZ is characterized by its remarkably **low supply current of just 175 µA per amplifier**. This feature is paramount for battery-operated devices, portable instrumentation, and remote sensor nodes where extending operational life is critical. Despite its frugal power appetite, the amplifier does not compromise on performance. It boasts a low input offset voltage of 150 µV and an exceptionally low input bias current of 25 nA, ensuring accurate signal conditioning and measurement integrity.

A key attribute of the OP484FSZ is its **rail-to-rail input and output voltage swing**. This capability allows the input and output signals to utilize the entire range of the supply rails, maximizing the dynamic range in low-voltage systems. This is particularly beneficial for modern applications powered by single-supply voltages as low as +3 V or dual supplies up to ±18 V, providing designers with exceptional flexibility.

The combination of low noise (11 nV/√Hz) and a **wide gain-bandwidth product of 800 kHz** makes this amplifier suitable for a diverse array of tasks. It can accurately amplify DC signals, handle audio frequencies, and interface with transducers and sensors without introducing significant noise or distortion. Furthermore, its design ensures stability with capacitive loads, a common challenge in many practical circuits.

**Typical applications** for the OP484FSZ are vast and varied, including:

* Portable medical diagnostic equipment.

* Multi-channel active filter circuits.

* Precision current sensing and monitoring.

* Thermocouple and thermopile amplifier circuits.

* Industrial process control systems.

* Handheld test and measurement devices.

In summary, the OP484FSZ stands out as a versatile and reliable solution for designers seeking to enhance performance while minimizing power and board space. Its robust feature set addresses the core challenges of modern electronic design, making it a go-to component for innovative and efficient analog systems.

**ICGOODFIND**: The OP484FSZ is a top-tier choice for engineers, offering an optimal balance of **low power consumption, precision, high integration, and rail-to-rail operation** in a single, compact package.

**Keywords**: Low Power Consumption, Rail-to-Rail Output, Precision Amplifier, Quad Operational Amplifier, Low Input Bias Current.