AD822BR-REEL7

Current - Input Bias:	2pA
Base Part Number:	AD822
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	5 V ~ 30 V, ±2.5 V ~ 15 V
Current - Output / Channel:	20mA
Current - Supply:	1.4mA
Voltage - Input Offset:	300µV
Series:	--
-3db Bandwidth:	1.9MHz
Gain Bandwidth Product:	1.9MHz
Slew Rate:	3 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	2
Amplifier Type:	General Purpose
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

AD822BR-REEL7 is a highly integrated monolithic instrumentation amplifier that provides precision performance in a wide variety of applications. It is a single op-amp packaged in an 8-pin surface mount package. The AD822BR-REEL7 is designed for use in a wide range of instrumentation, medical, and process control applications.The AD822BR-REEL7 provides wide dynamic range and wide input/output common mode range for precision signal conditioning, making it ideal for applications such as strain gauges and signal transmission. Its low input noise, low offset voltage, and low input bias currents make it well suited for process control and medical applications.

Application Field

An instrumentation amplifier is generally used in signal conditioning and signal monitoring applications. Common examples include amplifying weak signals from transducers, amplifying and conditioning signals from sensors, amplifying signals in precision measurements and monitoring electronic instruments, and processing ECG signals.The AD822BR-REEL7 instrumentation amplifier is specially designed for these applications and provides a wide range of features such as low noise, high dynamic range, and wide input/output common mode range. This makes it ideal for applications such as strain gauge measurements, signal transmission, and low frequency sensing.In addition to the application processing described above, the AD822BR-REEL7 can also be used in a multitude of applications such as audio signal processing, analogue testing and measurements, medical monitoring and diagnostics, and many industrial and consumer products.

Working Principle

The key feature of an instrumentation amplifier is the use of an internal differential amplifier to amplify the desired signal. The signal is applied to input terminals of the internal amplifier, which include a noninverting input and an inverting input. The internal amplifier provides a high input impedance and a low output impedance.The differential amplifier amplifies the input signal by the gain of the internal amplifier, which can be adjusted via a feedback resistor. The output is then amplified and processed by an additional gain stage and made available at the output terminal.The AD822BR-REEL7 instrumentation amplifier features a precision low-noise differential amplifier, low-bias current amplifier, adjustable gain, and a fully differential architecture. This ensures that the amplifier is able to maintain precision performance, even when dealing with high-frequency signals or low-level signals.In order to optimize its performance, the AD822BR-REEL7 instrumentation amplifier incorporates several features such as an output offset voltage compensator, an input bias current reduction circuit, and low-power protection.

Conclusion

The AD822BR-REEL7 is an ideal amplifier for precision processing of signals in a wide variety of applications. Its high performance and low power consumption make it well suited for a wide range of applications from strain gauges to medical monitoring. The internal differential amplifier, low-bias current amplifier, adjustable gain, and a fully differential architecture make it reliable and accurate in these applications.

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