TL081 General Purpose Op-Amp
The TL081 is a low cost, high-speed JFET input operational amplifier with an internally trimmed input offset voltage (BI-FET IITM technology). The device requires a low supply current and yet maintains a large gain-bandwidth product and a fast slew rate.
TL081 Pinout Configuration
|
Pin Number |
Pin Name |
Description |
|
1,5 |
Offset NULL |
Used to set offset voltage if required |
|
2 |
Inverting Input (IN-) |
The Inverting pin of the Op-Amp |
|
3 |
Non- Inverting Input (IN+) |
The Non-Inverting Pin of the Op-Amp |
|
4 |
V- |
Connected to negative rail or ground |
|
6 |
Output |
Output pin of the Op-Amp |
|
7 |
V+ |
Connected to a positive rail of supply voltage |
|
8 |
NC |
Not Connected |
TL081 features and specifications:
- Supply Voltage: 7V to 36 V
- GBP - Gain Bandwidth Product: 3 MHz
- SR - Slew Rate: 13 V/us
- CMRR - Common Mode Rejection Ratio: 70 dB to 86 dB
- Operating Supply Current: 1.4 mA
- Input Bias Current: 200pA
- Power Dissipation:670mW
- Available in 8-Pin PDIP, SOIC Packages
Note: Complete Technical Details can be found at the TL081 datasheet given at the end of this page.
Equivalent for TL081: UA741, CA3140
Alternatives Audio Amplifiers: LM4871, AD620, IC6283, JRC45558, LF351N, MC33171N
Where to use the TL081 Op-Amp
The TL081 JFET-input operational amplifier is designed to offer a wider selection than any previously developed operational amplifier. TL081 is a single package Op-Amp that has been widely used for quite a long time now. This Op-Amp can be used for many general purpose applications like Voltage follower, Buffers, Comparators, Amplifiers, Adders and much more. So if you looking for a plain old Op-Amp just for some basic circuit design then this IC might be the right choice for you.
How to use TL081 Op-Amp
An Inverting Amplifier Application circuit from the TL081 datasheet is given below. you only need two resistors to use TL081 as an inverting amplifier.
An inverting amplifier takes a positive/negative voltage on the inverting input pin and makes it a negative/positive voltage of the same magnitude. Output at the VOUT pin is feedback to input through the feedback resistor (Rf).
The input and output voltages can be calculated as,
Vin = I.R1 Vout = -I.Rf
Applications of TL081 IC
- Sample and Hold Amplifiers
- Peak Detectors
- Active Filters
- Comparators
- Interface in 5V TTL Systems and Other Low Supply Voltage Systems
- All Standard Operational Amplifier Applications
- Function Generators
2D-Model of TL081 IC
Dimensions for the TL081 IC is given below. These dimensions are for the 8-Pin PDSO package. If you are using different package IC please refer to the TL081 datasheet.
