TL081ACP

Current - Input Bias:	30pA
Base Part Number:	TL081A
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 70°C
Voltage - Supply, Single/Dual (±):	7 V ~ 36 V, ±3.5 V ~ 18 V
Current - Supply:	1.4mA
Voltage - Input Offset:	3mV
Series:	--
Gain Bandwidth Product:	3MHz
Slew Rate:	13 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	J-FET
Part Status:	Active
Packaging:	Tube

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TL081ACP Application Field and Working Principle

The TL081ACP is a JFET input operational amplifier from Texas Instruments. This device is designed for general-purpose low-power audio and video amplifier applications. It features a wide range of features, such as wide common-mode and differential voltage range, low input bias and offset current, low noise, high open-loop gain, internally compensated for unity gain stability, and EMI (electromagnetic interference) shielding. This device is ideal for applications such as amplifiers, buffers, tone controls, filters, and multiplexers.

Application Field

The TL081ACP is used in a wide range of audio and video applications. Due to its low noise and wide common-mode voltage range, it is often used in amplifiers, buffers, tone controls, and multiplexers. It is also used in filters and active filters, such as low-pass, high-pass, band-pass, and notch filters. Another application is as a current-controlled voltage source. This device is often used in test and measurement equipment, such as meters, oscilloscopes, and spectrum analyzers.

Description of JFET Input Operational Amplifier

The TL081ACP is a JFET (junction-field-effect transistor) input operational amplifier. It has a very high common-mode input voltage range and a low input bias current. It is a three terminal device with a two-stage architecture. It has a wide bandwidth of 1.3MHz and a high input impedance of 1TΩ. The amplifier can achieve a maximum DC gain of 50dB. It features low noise and is internally compensated for unity gain stability.

Working Principle

The working principle of a JFET input operational amplifier is similar to that of a bipolar operational amplifier. It consists of two stages, the input stage and the output stage. The input stage consists of the JFET transistor, which acts as a voltage amplifier and controls the input signal. The output stage is an emitter-follower configuration, which amplifies the output signal. The circuit works as follows: when a voltage difference is applied across the input, the JFET transistor amplifies the voltage. This amplified signal is then applied to the output stage. The output stage amplifies the signal further and the resulting output voltage is then applied to the output.

Advantages and Limitations

The main advantages of the TL081ACP include its wide common-mode voltage range, low input bias and offset current, low noise, and high open-loop gain. This makes it ideal for applications such as amplifiers, buffers, tone controls, filters, and multiplexers.The limitations of this device include its limited power consumption and output current, as well as its input offset voltage and drift. Additionally, the device is not suitable for high-frequency applications.

Conclusion

The TL081ACP is a JFET input operational amplifier from Texas Instruments which is designed for general-purpose low-power audio and video amplifier applications. It offers a wide range of features, including wide common-mode and differential voltage range, low input bias and offset current, low noise, high open-loop gain, internally compensated for unity gain stability, and more. This device is ideal for applications such as amplifiers, buffers, tone controls, filters, and multiplexers.

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