The TL082CDR is part of the Texas Instruments brand. It is an operational amplifier (op-amp) that comes in a DIP-8 (Dual In-line Package), which has 8 pins in total.
Pin Function Specifications (DIP-8 Package)
Below is the detailed pinout of the TL082CDR:
Pin Number Pin Name Description 1 Offset Null This pin is used for adjusting the input offset voltage. It is connected to a potentiometer for fine-tuning. 2 Inverting Input (−) The inverting input of the operational amplifier. This pin receives the negative feedback signal. 3 Non-Inverting Input (+) The non-inverting input of the operational amplifier. This pin receives the positive input signal. 4 V− (Negative Power Supply) The negative voltage supply for the op-amp. Typically connected to ground in single-supply configurations. 5 Offset Null This pin works with Pin 1 to adjust the offset voltage. 6 Output The output of the operational amplifier, where the processed signal is sent out. 7 V+ (Positive Power Supply) The positive voltage supply for the op-amp. This pin must be connected to a voltage higher than the input signals. 8 NC (No Connection) This pin has no internal connection and should be left unconnected in a circuit.Circuit Principle of TL082CDR
The TL082 is a dual op-amp integrated circuit, meaning it contains two independent op-amps inside a single package. Each op-amp follows a similar structure, with the inverting and non-inverting inputs, output, and power supply pins. The device is designed for precision applications, providing low offset voltage and low bias current.
This op-amp is used in various signal amplification, filtering, and buffering applications. It is commonly employed in audio systems, instrumentation, and other analog systems that require high performance and low noise.
Common FAQ about TL082CDR
Here is a list of 20 frequently asked questions regarding the TL082CDR:
What is the TL082CDR? The TL082CDR is a dual operational amplifier (op-amp) made by Texas Instruments. It features low offset voltage and is widely used in analog signal processing.
What is the typical application for TL082CDR? The TL082CDR is used in audio circuits, active filters , precision amplifiers, and analog signal conditioning systems.
What is the power supply voltage range for TL082CDR? The TL082CDR operates with a supply voltage range from ±3V to ±18V, or 6V to 36V in a single-supply configuration.
What is the package type of TL082CDR? The TL082CDR comes in a DIP-8 package, which has 8 pins.
How does the input offset voltage affect the performance of TL082CDR? The input offset voltage of the TL082CDR affects the accuracy of the output signal. It is the differential DC voltage required between the input terminals to make the output zero. This voltage can be minimized using the offset null pins.
Can the TL082CDR be used in single-supply configurations? Yes, the TL082CDR can be used in single-supply circuits, where the negative supply pin (pin 4) is typically connected to ground.
What is the maximum input voltage for the TL082CDR? The maximum input voltage should not exceed the supply voltage by more than 0.5V (i.e., V+ and V− rails).
What is the gain-bandwidth product of TL082CDR? The TL082CDR has a gain-bandwidth product of 3 MHz, which indicates the maximum frequency at which the op-amp can provide gain.
What is the input impedance of the TL082CDR? The input impedance of the TL082CDR is very high, typically around 1012 Ω, which minimizes loading on the signal source.
Can I use TL082CDR for audio applications? Yes, the TL082CDR is commonly used in audio amplifiers, equalizers, and preamplifiers due to its low noise and high performance.
How do I connect the offset null pins? The offset null pins (pins 1 and 5) are used to adjust the input offset voltage. A potentiometer is connected between these pins, and adjusting it fine-tunes the offset.
What is the output impedance of the TL082CDR? The output impedance of the TL082CDR is low, typically 75 Ω, making it suitable for driving external components.
Can TL082CDR drive capacitive loads directly? It is generally not recommended to drive large capacitive loads directly, as this may lead to instability. An external buffer or compensation might be needed.
What is the typical response time of TL082CDR? The TL082CDR has a typical slew rate of 0.3 V/µs, which defines how quickly the output voltage can change.
What is the thermal range of TL082CDR? The operating temperature range for TL082CDR is typically from −40°C to +85°C.
What is the output voltage swing for TL082CDR? The output voltage swing is typically from (V− + 1.5V) to (V+ − 1.5V), depending on the load and operating conditions.
How should I handle the unused op-amp inside the TL082CDR package? If you are only using one of the op-amps, you can leave the unused one unconnected, but it is important to ensure the power supply and grounding are done correctly.
What is the power consumption of TL082CDR? The typical power consumption of the TL082CDR is very low, around 1.5 mW at ±15V.
Can the TL082CDR be used in precision measurement systems? Yes, the TL082CDR is designed for precision applications, thanks to its low offset voltage and low bias current.
Is the TL082CDR available in other package types? Yes, the TL082 is also available in other packages such as the SOIC-8 (small outline integrated circuit) and others.
This is a comprehensive explanation of the TL082CDR's pin functions, circuit principles, and frequently asked questions. Let me know if you need further details!
