Overview
The TL084CN is a quad operational amplifier produced by Texas Instruments, featuring a JFET-input stage that combines high-voltage JFET and bipolar transistors. This integration enhances the amplifier's performance, providing high input impedance, low bias current, and minimal offset voltage. The TL084CN is packaged in a 14-pin DIP (Dual In-Line Package) and is known for its wide common-mode and differential voltage ranges, low power consumption, and high slew rate, making it suitable for various applications, particularly in audio and instrumentation design.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package / Case | 14-DIP (0.300, 7.62mm) | |
| Number of Pins | 14 | |
| Operating Temperature | 0°C ~ 70°C | |
| Supply Voltage | ±2.25 V to ±20 V, 4.5 V to 40 V | V |
| Slew Rate | 13 V/μs (typ) | V/μs |
| Input Offset Voltage (Vos) | 15 mV (typ) | mV |
| Input Bias Current | 30 pA (typ) | pA |
| Common Mode Rejection Ratio | 70 dB (typ) | dB |
| Total Harmonic Distortion | 0.003% (typ) | % |
| Unity Gain Bandwidth | 3000 kHz (typ) | kHz |
| Max Power Dissipation | 680 mW | mW |
Key Features
- High Input Impedance: JFET-input stage providing high input impedance and low bias current.
- Low Power Consumption: Low power consumption of 940 μA per channel (typical for TL08xH).
- Wide Common-Mode and Differential Voltage Ranges: Supports a broad range of voltage inputs, including common-mode input voltage range that includes VCC+.
- Low Input Bias and Offset Currents: Minimizes input current variations and offset errors.
- Output Short-Circuit Protection: Protects the output from potential damage due to short circuits.
- Low Total Harmonic Distortion: 0.003% typical, ideal for audio applications.
- High Slew Rate: 13 V/μs typical for fast signal response.
- Latch-Up-Free Operation: Ensures reliable and stable operation.
- Low Noise: Low equivalent input noise voltage, typically 18 nV/√Hz at 1 kHz.
Applications
The TL084CN is versatile and can be used in a variety of applications:
- Audio Pre-Amplifiers: Ideal for high-fidelity audio settings due to its low noise and harmonic distortion, making it suitable for precision audio equipment.
- Instrumentation Design: High input impedance and low bias current make it suitable for instrumentation applications where signal integrity is crucial.
- Telecommunications: Used in high-speed signal processing tasks due to its high slew rate and low power consumption.
- Motor Drives and Power Stage Modules: Suitable for AC and servo drive control in motor drives.
- UPS Systems: Used in single-phase and three-phase online UPS systems.
- Solar Energy Systems: Employed in string and central inverter applications.
- Battery Test Equipment: Utilized for precise signal amplification in battery testing.
Q & A
- What is the package type of the TL084CN?
The TL084CN is packaged in a 14-pin DIP (Dual In-Line Package).
- What is the typical slew rate of the TL084CN?
The typical slew rate of the TL084CN is 13 V/μs.
- What is the input offset voltage of the TL084CN?
The input offset voltage of the TL084CN is typically 15 mV.
- What are the supply voltage ranges for the TL084CN?
The supply voltage ranges for the TL084CN are ±2.25 V to ±20 V and 4.5 V to 40 V.
- Does the TL084CN have output short-circuit protection?
Yes, the TL084CN has output short-circuit protection.
- What is the typical total harmonic distortion of the TL084CN?
The typical total harmonic distortion of the TL084CN is 0.003%.
- What is the common-mode rejection ratio of the TL084CN?
The common-mode rejection ratio of the TL084CN is typically 70 dB.
- Is the TL084CN suitable for audio applications?
Yes, the TL084CN is highly suitable for audio applications due to its low noise, low harmonic distortion, and high input impedance..
- Can the TL084CN be used in high-speed signal processing?
Yes, the TL084CN can be used in high-speed signal processing tasks due to its high slew rate and low power consumption..
- What are some common applications of the TL084CN?
The TL084CN is commonly used in audio pre-amplifiers, instrumentation design, telecommunications, motor drives, UPS systems, solar energy systems, and battery test equipment..
