AD603ARZ

Current - Input Bias:	200nA
Base Part Number:	AD603
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 (±):	9.5 V ~ 12.6 V, ±4.75 V ~ 6.3 V
Current - Output / Channel:	50mA
Current - Supply:	12.5mA
Series:	X-AMP®
-3db Bandwidth:	90MHz
Slew Rate:	275 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	Variable Gain
Part Status:	Active
Packaging:	Tube

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AD603ARZ Application Field and Working Principle

The AD603ARZ is a monolithic, dual FET input amplifier from Analog Devices, Inc. It is part of their family of linear-amplifiers and instrumentation amplifiers. This amplifier was designed for applications requiring low distortion, high bandwidth and low noise performance in an economical package. The AD603ARZ is well-suited for use in medical imaging, automotive radar systems, satellite communications, and instrumentation.

Features

The AD603ARZ amplifier features include:

• Wide bandwidth: 250 MHz
• High accuracy: 0.0005%
• High common mode rejection ratio: 100 dB
• Low noise: 5.5nV/√Hz
• Wide input swing: ±18V
• High output swing: ±15 V
• Low distortion: 0.0006%
• 8-lead SOIC package

Application Fields

The AD603ARZ amplifier is suitable for a variety of applications from medical imaging to automotive radar systems. It is used in medical imaging systems due to its high accuracy, wide bandwidth, and high common mode rejection ratio. The high input and output swing capabilities of the AD603ARZ allows it to be used in radar systems where high dynamic range signals need to be accurately amplified. In addition, the high common mode rejection ratio reduces unwanted noise which would otherwise interfere with the system. It is also used in satellite communications systems due to its low noise and low distortion characteristics.

Working Principle

The AD603ARZ operates using a dual FET input stage. This type of input stage produces high input impedance, low noise and wide bandwidth. The amplifier is designed to achieve a low distortion rate for high accuracy applications. The input stage is followed by two gain stages, each with a gain of 1000. The amplifier reaches its highest performance when the input offset and gain control pins, GC and IO, are properly regulated. The low noise performance of the amplifier is maintained by the low-pass filter stage at the output.

Conclusion

The AD603ARZ amplifier from Analog Devices, Inc. is a high performance, low distortion monolithic dual FET input amplifier. This amplifier is suitable for a variety of applications, including medical imaging, automotive radar systems, and satellite communications. The AD603ARZ features a wide bandwidth, high accuracy, high common mode rejection ratio, low noise, wide input and output swing, and low distortion. The amplifier operates using a dual FET input stage, followed by two gain stages, and then a low-pass filter stage at the output. With proper regulation of the input offset and gain control pins, the amplifier can achieve its maximum performance.

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