TL084QDR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Operational Amplifier
• Characteristics: High input impedance, low offset voltage, low noise, wide bandwidth
• 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 Noise Voltage: 18 nV/√Hz (typical)
• Slew Rate: 13 V/µs (typical)
• Gain Bandwidth Product: 3 MHz (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TL084QDR 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

• Quad JFET input operational amplifier
• Low input bias and offset currents
• High slew rate and wide bandwidth
• Low distortion and noise levels
• High input impedance and low output impedance
• Suitable for audio applications, active filters, and instrumentation amplifiers

Advantages and Disadvantages

Advantages: - High input impedance allows for accurate signal amplification - Low offset voltage ensures minimal error in amplification - Wide bandwidth enables the amplification of a broad range of frequencies - Low noise level ensures clean signal amplification

Disadvantages: - Limited supply voltage range compared to some other operational amplifiers - Relatively low gain bandwidth product compared to higher-end models

Working Principles

The TL084QDR is a quad JFET input operational amplifier that utilizes JFET (junction field-effect transistor) technology for its input stage. This technology provides high input impedance and low input bias current, making it suitable for applications requiring accurate signal amplification.

The operational amplifier amplifies the difference between its two input terminals, producing an output voltage proportional to this difference. It operates by using feedback to control the gain and adjust the output accordingly.

Detailed Application Field Plans

The TL084QDR is commonly used in various applications, including:

1. Audio Amplification: The low distortion and wide bandwidth make it suitable for audio amplification in audio systems, mixers, and musical instruments.
2. Active Filters: Its high input impedance and low noise level make it ideal for active filter circuits used in audio processing and signal conditioning.
3. Instrumentation Amplifiers: The TL084QDR's low offset voltage and high input impedance make it suitable for precision measurement applications, such as strain gauge amplifiers and medical instrumentation.

Detailed and Complete Alternative Models

Some alternative models to the TL084QDR include:

1. LM324: Similar quad operational amplifier with a wider supply voltage range.
2. TL074: Quad operational amplifier with lower input bias current and higher slew rate.
3. OP4177: Precision quad operational amplifier with low offset voltage and low noise.

These alternative models offer different specifications and features, allowing users to choose the most suitable option based on their specific requirements.

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