TL072CDT Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Amplifier Type:	J-FET
Number of Circuits:	2
Output Type:	--
Slew Rate:	16 V/µs
Gain Bandwidth Product:	4MHz
Current - Input Bias:	20pA
Voltage - Input Offset:	3mV
Current - Supply:	1.4mA
Current - Output / Channel:	40mA
Voltage - Supply, Single/Dual (±):	6 V ~ 36 V, ±3 V ~ 18 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SO
Base Part Number:	TL072

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TL072CDT Application Field and Working PrincipleTL072CDT is a dual low-noise JFET input operational amplifier with high input-impedance, low-input offset voltage, and low-distortion. This device is widely used in applications such as headphone amplifiers, audio preamplifiers, filters, and instrumentation amplifiers.The TL072CDT has two independent frequency compensated JFET-input amplifiers. Its primary characteristics include high input resistance, low input bias current, and low offset voltage. The dual configuration allows for multiple uses such as in-amp buffering, A/D and D/A conversion, and general audio mixing.Application FieldThe TL072CDT is widely used in audio electronics such as headphone amplifiers, audio preamplifiers, filters, and instrumentation amplifiers. It is also used as a gain control in various types of audio boosting circuits. The low-noise and high input impedance makes this device well suited for use in audio preamplifiers, headphone amplifiers, and electronic music instrumentation. It’s also a popular choice for power supply regeneration and control circuits, voltage regulators, and high-precision comparators.Principle of OperationThe TL072CDT is a dual low-noise JFET input operational amplifier. The device features two individually frequency compensated JFET input amplifiers with high input resistance, low input bias current, and low offset voltage. The device is an integrated circuit or IC, meaning that it consists of many different transistors, resistors and capacitors. The TL072CDT also has an output amplifier, which follows the input stage and controls the signal level.The device operates on two basic principles, a differential amplifier and an inverting amplifier. Each amplifier’s output is fed back to the input, via a feedback loop. This allows the amplifier to precisely control the output signal level. The differentiator is responsible for amplifying any differences in the input signal, while the inverter amplifies the input signal that is in-phase with the input. These two stages of circuitry combine to produce a signal with the desired output level.The JFET inputs of the TL072CDT are also important for the overall operation of the device. The JFETs have very high input impedance, which helps to maintain low noise levels and helps produce a better signal-to-noise ratio.The input stage of the TL072CDT is critical for the overall operation of the device. It is here that the differential and inverting inputs are combined to form the complete signal. This combination creates the output signal with the correct amplitude, polarity and frequency.ConclusionThe TL072CDT is a powerful operational amplifier with many applications in audio electronics. The device has two differentiator and one inverter amplifier stages, as well as two independent frequency-compensated JFET input amplifiers. Its primary characteristics include high input resistance, low input bias current, and low offset voltage. This device is ideal for use in headphone amplifiers, audio preamplifiers, filters, and instrumentation amplifiers. It is also suitable for boost circuits, voltage regulation, power supply regeneration and control circuits, and high-precision comparators.

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