The STMicroelectronics TL084IN is a high-performance, low-noise JFET-input operational amplifier that is part of the TL08x family. This operational amplifier is designed for a wide range of applications, including audio processing, instrumentation, and signal conditioning. The TL084IN is particularly noted for its excellent performance characteristics, making it a popular choice among engineers and designers.

## Key Features:

1. Low Noise: The TL084IN is engineered to provide low input noise, which is crucial for applications that require high precision and minimal distortion in signal processing.
2. High Slew Rate: With a slew rate of 13 V/µs, the TL084IN can effectively handle rapid changes in input signals, making it suitable for high-frequency applications.
3. Wide Gain Bandwidth Product: The op-amp has a gain bandwidth product of 3 MHz, allowing it to maintain performance across a broad range of frequencies.
4. Low Total Harmonic Distortion (THD): The device exhibits low THD, which is essential for audio applications where signal integrity is paramount.
5. Single-Supply Operation: The TL084IN can operate on a single power supply, simplifying circuit design and reducing the number of components required.

## Specifications:

- Type: JFET-input operational amplifier
- Number of Amplifiers: 4 (quad package)
- Supply Voltage (V+ to V-): ±3 V to ±15 V
- Input Voltage Range: Common-mode input voltage range extends from V- to V+ - 2 V
- Input Offset Voltage: Typically 3 mV, maximum 6 mV
- Input Bias Current: Typically 30 pA
- Input Impedance: 10^12 Ω (typical)
- Output Voltage Swing: Typically ±12 V with a ±15 V supply
- Output Current: 20 mA (minimum)
- Power Supply Rejection Ratio (PSRR): 100 dB (typical)
- Temperature Range: -40°C to +125°C (industrial grade)
- Package Type: DIP-14, SO-14, TSSOP-14, and others

## Applications:

The TL084IN is suitable for a wide range of applications, including:
- Audio signal processing and mixing
- Active filters and equalizers
- Instrumentation amplifiers for sensor applications
- Voltage followers and buffers
- Signal conditioning circuits in data acquisition systems
- Medical instrumentation
- High-impedance sensor interfaces

## Conclusion:

The STMicroelectronics TL084IN operational amplifier is a versatile and reliable component that offers excellent performance in a compact package. Its low noise, high slew rate, and wide bandwidth make it an ideal choice for various applications, particularly in audio and instrumentation fields. The TL084IN%27s ability to operate over a wide temperature range makes it suitable for demanding environments, ensuring consistent performance across a variety of applications. Whether you are designing a new circuit or upgrading an existing one, the TL084IN provides the performance and reliability needed for high-quality signal processing, making it a valuable addition to any electronic design.