MC34072ADR2

Voltage - Input Offset:	500µV
Base Part Number:	MC34072A
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply, Single/Dual (±):	3 V ~ 44 V, ±1.5 V ~ 22 V
Current - Output / Channel:	30mA
Current - Supply:	1.9mA
Series:	--
Current - Input Bias:	100nA
Gain Bandwidth Product:	4.5MHz
Slew Rate:	13 V/µs
Output Type:	--
Number of Circuits:	2
Amplifier Type:	General Purpose
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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The MC34072ADR2 is a monolithic operational amplifier. It is a high-performance IC with a wide range of application fields and working principles.

Application Field

The MC34072ADR2 operational amplifier is especially suitable for multiple stages of gain or filtering circuits. It can also be used for a variety of signal conditioning applications, such as amplifying and attenuating audio signals, amplifying and suppressing DC and low frequency signals, and so on. This operational amplifier can also be used in RF frequency amplifiers, arithmetic logic circuits, AC amplifiers, data acquisition systems, and instrumentation-amplifiers. This device is particularly beneficial for those applications requiring higher gain accuracy, greater power dissipation, and greater input common-mode range.

Working Principle

The MC34072ADR2 is an integrated circuit device that consists of several transistors, resistors, and capacitors. This device functions by amplifying electrical signals and then regulating the input and output signals through a differential amplifier topology. The differential amplifier works by sensing the difference of two input signals, which are then amplified by a larger voltage than would have been possible through a single amplifier.The electrical signals entering the differential amplifier are compared by the transistors and the output of the amplifier is adjusted accordingly. The process of comparing the electrical signals is achieved by measuring the difference between their current and voltage levels. This helps ensure that the resulting output is amplified with more accuracy than would be possible through a single operational amplifier.The feature that sets the MC34072ADR2 apart from other operational amplifiers is its high open-loop gain. This open-loop gain is achieved by the transistors in the differential amplifier and is much higher than the open-loop gain achievable through a standard operational amplifier. This higher open-loop gain helps this device achieve higher operating frequencies and increases its ability to amplify lower amplitude signals.The MC34072ADR2 also employs a frequency compensation capacitor. This capacitor helps the amplifier achieve its wider bandwidth. This capacitance helps the amplifier to achieve its high slew rate, which allows it to operate faster, allowing the amplifier to have greater dynamic range and linearity.Finally, the MC34072ADR2 features an integrated output stage and power-down function. This output stage helps the amplifier to reduce power consumption and to extend its quiescent current. The power-down function allows the device to be switched off when not in use, further reducing power consumption.

Conclusion

The MC34072ADR2 is a highly advanced and versatile monolithic operational amplifier. This device is especially suitable for multiple stages of gain or filtering circuits and can be used for a wide range of signal-conditioning applications. This amp is particularly beneficial for those applications requiring higher gain accuracy, greater power dissipation, and wider input common-mode range. This device also features an integrated output stage and a power-down function, which helps reduce power consumption.

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