TL061CDT JFET Input Operational Amplifier IC – Low-Power, 8-SOIC Package | STMicroelectronics

STMicroelectronics TL061CDT: High-Performance JFET Operational Amplifier for Precision Analog Applications

In the realm of analog circuit design, the TL061CDT from STMicroelectronics emerges as a versatile and efficient operational amplifier engineered to meet the demands of modern electronic systems. This monolithic JFET-input amplifier combines low power consumption with robust performance, making it an ideal choice for applications ranging from portable devices to industrial control systems. With its 8-SOIC packaging and advanced specifications, the TL061CDT delivers precision, reliability, and adaptability in a compact form factor.

Key Features and Performance Metrics

At the core of the TL061CDT’s appeal is its exceptional balance of speed and efficiency. Operating with a supply current of just 200µA per amplifier, this device excels in battery-powered applications where energy conservation is critical. Its 1 MHz gain bandwidth product and 3.5V/µs slew rate enable high-speed signal processing, while the 30 pA input bias current ensures minimal loading effects on high-impedance sources. These characteristics position the TL061CDT as a go-to solution for designers seeking to optimize both performance and power economy.

The amplifier’s specifications further highlight its suitability for precision tasks. A maximum input offset voltage of 3 mV and a wide supply voltage range (6V to 36V) allow for flexible deployment across diverse environments. Its rail-to-rail output swing capability and 20 mA output current drive capacity ensure compatibility with a broad array of peripheral components, reducing the need for additional signal conditioning circuitry.

Applications and Use Cases

Engineers leverage the TL061CDT in applications where accuracy and stability are paramount. Its JFET input stage makes it particularly well-suited for photodiode amplification, sensor interfaces, and medical instrumentation where minimal input current leakage is crucial. The amplifier’s temperature stability (-40°C to +85°C operational range) and robust output drive also find utility in automotive systems, process control equipment, and high-fidelity audio circuits.

In portable electronics, the TL061CDT’s low quiescent current extends battery life without compromising signal integrity. Its 8-SOIC package facilitates space-constrained PCB layouts, while the amplifier’s inherent immunity to electromagnetic interference enhances reliability in noisy environments.

Design Advantages and System Integration

Integrating the TL061CDT into circuit designs offers several advantages. Its internal compensation circuitry simplifies stability implementation, reducing external component requirements. The amplifier’s ESD protection (4000V HBM) and latch-up immunity enhance field reliability, lowering maintenance costs in critical systems. Designers also benefit from its pin-to-pin compatibility with industry-standard packages, enabling seamless upgrades from legacy components without PCB redesigns.

For audio applications, the TL061CDT’s low noise characteristics (typically 18nV/√Hz) and wide dynamic range contribute to clean signal amplification. In data acquisition systems, its precision specifications minimize measurement errors, improving overall system accuracy. The amplifier’s thermal shutdown and overload protection features further safeguard against operational stresses, prolonging component lifespan.

Conclusion: A Versatile Workhorse for Analog Designers

The TL061CDT stands out as a well-rounded operational amplifier that bridges the gap between performance and power efficiency. STMicroelectronics’ commitment to quality is evident in this component’s rigorous testing standards and consistent delivery of specifications across production batches. Whether deployed in consumer electronics, test equipment, or industrial machinery, the TL061CDT provides the stability and precision required for demanding analog signal processing tasks. Its combination of features makes it a compelling option for engineers seeking to balance technical requirements with cost-effective implementation.

Tags: Low-Power ICs, Surface Mount Amplifiers, Precision Analog Components