AD844ANZ

Voltage - Input Offset:	50µV
Base Part Number:	AD844
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	±4.5 V ~ 18 V
Current - Output / Channel:	80mA
Current - Supply:	6.5mA
Series:	--
Current - Input Bias:	200pA
-3db Bandwidth:	60MHz
Slew Rate:	2000 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	Current Feedback
Part Status:	Active
Packaging:	Tube

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Analog Devices’ AD844ANZ is an integrated circuit designed for use as a high speed operational amplifier. The device is well suited for applications in the field of electrical engineering, such as gain and phase compensation, instrumentation, power-supply rejection or signal conditioning. This article will provide an in-depth overview of the AD844ANZ, discussing its application field, working principle and features.

Application Field

The AD844ANZ is most suitable for use in electrical engineering applications. As a signal conditioning device, it can be used to improve the signal-to-noise ratio of incoming signals, such as those stemming from thermocouple sensors. Moreover, it can be used as an instrumentation amplifier, which provides gain and phase compensation of signals used in industrial automation. The device can also be used in differential signal acquisition systems, where it can provide good common-mode rejection capabilities. Furthermore, the AD844ANZ can be used in power-supply rejection systems, to ensure stable and consistent operation when powered by an AC source.

Working Principle

The AD844ANZ is a dual (oranalog) integrated circuit (IC) consisting of two input buffer amplifiers, two output amplifiers and a common-mode feedback circuit. It has a nominal operating voltage range of +4.75 to +12 V. The IC is designed for use as a high speed student- and instructor-operated amplifier. Its wide bandwidth and low input offset voltage make it well suited for use in many different types of applications.The input buffer amplifiers allow the AD844ANZ to provide gain. The buffers have an input impedance of approximately 50K and an output impedance of 45K. The outputs of the buffers are then buffered further by the output amplifiers, which provide the voltage gain of the circuit. The common-mode feedback circuit ensures that the output of the device remains in the range of -12 to +12 V regardless of the input signal amplitude. Furthermore, the AD844ANZ provides low noise and low input offset voltage, making it well suited for use in a number of different applications. It also offers excellent frequency response, reducing any distortion and enhancing signal integrity.

Features

The AD844ANZ offers a number of noteworthy features, making it ideal for use in many different applications. It has an input bandwidth of 1 MHz and an output voltage range of -12 to +12 V. It also offers excellent common-mode rejection, with a rejection ratio of up to 0.2 dB. This ensures stable and consistent operation, even when powered by an AC source. The device has a maximum output current of 55 mA and an input offset voltage of 1 mV. It also offers low distortion, with a THD of up to 0.2%. Finally, the AD844ANZ requires very little power in order to operate, making it ideal for power-saving applications.

Conclusion

The AD844ANZ is an integrated circuit designed for use in various electrical engineering applications. It is well suited for instrumentation, power-supply rejection and signal conditioning. Furthermore, it offers high speed operation, low noise and low distortion, making it ideal for a variety of applications. Finally, the device offers excellent common-mode rejection and requires very little power to operate. As evidenced, the AD844ANZ is a reliable and versatile device, making it an excellent choice for a wide range of applications.

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