TL084IDT

Product Overview

• Category: Integrated Circuit
• Use: Operational Amplifier
• Characteristics: High input impedance, low offset voltage, low power consumption
• Package: SOIC-14
• Essence: Quad JFET-input operational amplifier
• Packaging/Quantity: Tape and Reel / 2500 units per reel

Specifications

• Supply Voltage: ±3V to ±18V
• Input Offset Voltage: 3 mV (maximum)
• Input Bias Current: 30 nA (maximum)
• Input Offset Current: 5 nA (maximum)
• Gain Bandwidth Product: 3 MHz (typical)
• Slew Rate: 13 V/µs (typical)
• Common Mode Rejection Ratio: 70 dB (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TL084IDT has a total of 14 pins arranged as follows:

___________ 1 | | | 14 2 |___| | 13 3 | | 12 4 | | 11 5 | | 10 6 | | 9 7 |_______________| 8

Functional Features

• Low noise and distortion
• Wide bandwidth
• High slew rate
• High input impedance
• Low power consumption
• Output short-circuit protection

Advantages and Disadvantages

Advantages: - High input impedance allows for accurate signal amplification - Low offset voltage ensures minimal error in amplification - Low power consumption makes it suitable for battery-powered applications - Output short-circuit protection prevents damage to the device

Disadvantages: - Limited gain bandwidth product compared to some other operational amplifiers - Relatively high input bias current may affect precision applications

Working Principles

The TL084IDT is a quad JFET-input operational amplifier. It utilizes JFET (junction field-effect transistor) technology in its input stage, providing high input impedance and low input bias current. The device operates by amplifying the voltage difference between its two input terminals, producing an output voltage that is a scaled version of this difference.

Detailed Application Field Plans

The TL084IDT is commonly used in various applications, including:

1. Audio Amplification: Due to its low noise and distortion characteristics, it is suitable for audio signal amplification in audio systems, mixers, and musical instruments.
2. Signal Conditioning: Its high input impedance and low offset voltage make it ideal for conditioning weak signals from sensors or transducers before further processing.
3. Active Filters: The TL084IDT can be used to design active filters for frequency selection and signal shaping in communication systems and audio equipment.
4. Instrumentation Amplifiers: With its high input impedance and low power consumption, it is well-suited for precision measurement applications, such as strain gauge amplifiers and biomedical instrumentation.

Detailed and Complete Alternative Models

Some alternative models to the TL084IDT include:

1. LM324: Similar quad operational amplifier with lower input offset voltage but slightly higher input bias current.
2. TL074: Quad operational amplifier with similar characteristics but lower slew rate.
3. OP4177: Precision quad operational amplifier with lower input offset voltage and higher gain bandwidth product.

These alternative models offer different trade-offs in terms of performance and specifications, allowing designers to choose the most suitable option for their specific application requirements.

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