AD8421BRMZ-R7 Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Amplifier Type:	Instrumentation
Number of Circuits:	1
Output Type:	--
Slew Rate:	35 V/µs
-3db Bandwidth:	10MHz
Current - Input Bias:	100pA
Voltage - Input Offset:	25µV
Current - Supply:	2mA
Current - Output / Channel:	65mA
Voltage - Supply, Single/Dual (±):	5 V ~ 36 V, ±2.5 V ~ 18 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:	8-MSOP
Base Part Number:	AD8421

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Introduction

The AD8421BRMZ-R7 is a low power precision differential amplifier designed for use in a wide range of applications. It offers very low offset voltage, low noise, low distortion and very low power consumption. The device features low input bias and offset currents and is optimized for very low power operation. It has a wide supply voltage range making it ideal for use in many instrumentation, communication, test and measurement applications.

Application Field - Instrumentation and Measurement

The AD8421BRMZ-R7 is well suited for instrumentation and measurement applications. It offers low noise and low distortion characteristics combined with low power operation. Its wide supply voltage range makes it particularly suitable for applications where the input and output voltages must be precisely controlled. It can be used in differential sensing circuits, precision amplifiers, instrumentation, signal conditioning, test and measurement, and other precision applications.

Application Field - Communication and Control

The AD8421BRMZ-R7 can also be used in communication and control applications. Its low power and low distortion characteristics make it very suitable for use in systems for remote communication and control. It can be used in an array of systems such as wireless communication, avionics, GPS systems, industrial control systems, and robotics.

Working Principle

The AD8421BRMZ-R7 is a differential amplifier. It operates by comparing the differential voltages at its two inputs and amplifying the difference between the two. The device consists of two input stages, an operational amplifier section, and an output stage. The first input stage is a differential amplifier, where the two inputs are compared and the amplified output is sent to the operational amplifier section. The second input stage is a differential amplifier, but with a gain of unity, so only the difference between the two inputs is passed to the operational amplifier section. The operational amplifier section is a low noise, high gain amplifier, which further amplifies and corrects the differential signals from the first two stages. The output stage then converts the signals from the operational amplifier into a single output.

Conclusion

The AD8421BRMZ-R7 is a low power precision differential amplifier designed for use in a wide range of applications. It offers very low offset voltage, low noise, low distortion, and very low power consumption while still providing high performance and accuracy. The device can be used in differential sensing circuits, instrumentation, communication, test and measurement, and other precision applications. Its low power and low distortion characteristics make it very suitable for use in systems for remote communication and control. The device operates by comparing the differential voltages at its two inputs and amplifying the difference between the two.

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