TL084BCDR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Operational Amplifier
• Characteristics: High input impedance, low offset voltage, low noise, wide bandwidth
• Package: SOIC (Small Outline Integrated Circuit)
• 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)
• Input Resistance: 1012 Ω (typical)
• Output Current: 40 mA (maximum)
• Slew Rate: 13 V/µs (typical)
• Gain Bandwidth Product: 4 MHz (typical)

Pin Configuration

The TL084BCDR has a total of 14 pins arranged as follows:

```

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| | --|1 7 8 |-- --|2 6 9 |-- --|3 5 10 |-- --|4 11 |-- |___________| ```

1. Non-Inverting Input 1
2. Inverting Input 1
3. Output 1
4. VCC+
5. Offset Null 1
6. Offset Null 2
7. Non-Inverting Input 2
8. Inverting Input 2
9. Output 2
10. VCC-
11. Offset Null 3
12. Offset Null 4
13. Non-Inverting Input 3
14. Inverting Input 3

Functional Features

• Quad JFET input operational amplifier
• Low input bias and offset currents
• High slew rate for fast signal processing
• Wide bandwidth for accurate amplification
• Low noise for improved signal quality
• High output current drive capability

Advantages and Disadvantages

Advantages: - High input impedance allows for easy interfacing with various signal sources - Low offset voltage ensures accurate amplification of small signals - Low noise level preserves signal integrity - Wide bandwidth enables amplification of high-frequency signals - High output current drive capability allows for driving low impedance loads

Disadvantages: - Relatively high power consumption compared to some other operational amplifiers - Limited supply voltage range may restrict certain applications - Not suitable for precision applications due to moderate input offset voltage

Working Principles

The TL084BCDR is a quad JFET input operational amplifier that utilizes JFET (junction field-effect transistor) technology in its input stage. This technology provides high input impedance, low input bias current, and low input offset voltage. The operational amplifier amplifies the difference between the voltages at its non-inverting and inverting inputs, producing an output voltage proportional to this difference.

Detailed Application Field Plans

The TL084BCDR is commonly used in various applications, including:

1. Audio Amplification: Due to its low noise and wide bandwidth characteristics, it is suitable for audio amplification in audio systems, musical instruments, and sound equipment.
2. Signal Conditioning: Its high input impedance and low offset voltage make it ideal for conditioning weak signals from sensors, transducers, or other low-level sources.
3. Active Filters: The TL084BCDR can be used in active filter circuits to shape the frequency response of signals in communication systems, audio equipment, and instrumentation.
4. Oscillators: It can be employed in oscillator circuits to generate stable and accurate waveforms for clocking, timing, or frequency generation applications.
5. Voltage Regulators: The TL084BCDR can be used in voltage regulator circuits to provide stable and regulated output voltages.

Detailed and Complete Alternative Models

Some alternative models to the TL084BCDR include:

1. LM324: Quad operational amplifier with similar characteristics and pin configuration.
2. TL074: Quad JFET input operational amplifier with lower noise and higher slew rate.
3. OP07: Precision operational amplifier with low offset voltage and low input bias current.
4. NE5532: Dual operational amplifier with low noise and high output current drive capability.

These alternative models offer different trade-offs in terms of performance, cost, and specific application requirements.

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