AD8628WARZ-RL

Current - Input Bias:	30pA
Base Part Number:	AD8628
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply, Single/Dual (±):	2.7 V ~ 5 V, ±1.35 V ~ 2.5 V
Current - Output / Channel:	30mA
Current - Supply:	850µA
Voltage - Input Offset:	1µV
Series:	--
-3db Bandwidth:	2.5MHz
Gain Bandwidth Product:	2.5MHz
Slew Rate:	1 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	Zero-Drift
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The AD8628WARZ-RL is a common instrumentation, Operational Amplifier (OP Amp), and Buffer Amplifier device used in the design of linear circuits. This device possesses numerous features and capabilities that make it useful in a variety of applications and is ideal for designing a range of low-voltage, high-speed linear circuits. This article will explain the specific application fields of the AD8628WARZ-RL to give an understanding of the device\'s advantages and capabilities. It will also discuss the working principle of the device and explain its helpful features.

Application Fields

The AD8628WARZ-RL is a versatile instrumentation, Operational Amplifier (OP Amp), and Buffer Amplifier device that is capable of performing a wide variety of functions. It can be used in a variety of applications, including but not limited to:

• Instrumentation systems
• Operational amplifiers
• Filters (active, reactive)
• Transducers
• Motor amplifier designs
• Audio amplifier design
• Data acquisition
• Temperature control
• In-circuit power supply designs

The AD8628WARZ-RL is a high-performance, low-voltage single-channel Integrated Circuit (IC) buffer amplifier with low distortion characteristics. This makes it useful in a wide range of signal processing, signal conditioning, and gain-control design applications. It features high input impedance and low output impedance making it ideal for use in high-speed signal processing designs. The device efficiently transforms and amplifies signals while maintaining low distortion levels, which makes it suitable for a variety of data acquisition systems. The device\'s low operating voltage of ±5V gives it excellent power dissipation performance, making it useful in designs with limited power supply capabilities.

Working Principle

The AD8628WARZ-RL is an instrumentation, Operational Amplifier (OP Amp), and Buffer Amplifier device that operates using a differential input design. The device has an input stage consisting of two high gain differential amplifiers, an output stage composed of two low gain amplifiers, and two bias current sources that control the current levels of the device. The device also utilizes a combination of passive components, including resistors and capacitors, to form a low-pass filter and provide AC-coupling and a gain-controlled, buffered output signal. The device uses a voltage source to power the input stage, and the output stage is powered by the external power supply.The device utilizes an internal feedback loop that monitors the inputs and compensates for any changes to the input signal. This helps to reduce distortion, eliminate noise, and maintain a linear response across the entire range of the device’s input voltage range. Additionally, the device has temperature-compensated bias current sources that track temperature changes in order to reduce offset, which further helps maintain linear operation.The device features a high dc gain and can be operated in single- or dual-supply configuration depending on the type of input signals being processed. With its low-distortion characteristics, the device is capable of buffering signals from complex systems without introducing distortion. Additionally, it has a wide frequency response range and is suitable for use in both audio and data acquisition systems.

Conclusion

The AD8628WARZ-RL is a high-performance instrumentation, Operational Amplifier (OP Amp), and Buffer Amplifier IC device designed for use in low-voltage, high-speed linear circuits. With its high input impedance, low output impedance, and low-distortion operation, the device is helpful in a wide range of signal processing, signal conditioning, and gain-control designs. The device utilizes an internal feedback loop, temperature-compensated bias current sources, and a combination of passive components to form a useful, buffered output signal. It can be used in applications such as instrumentation systems, motor amplifier designs, audio amplifier design, data acquisition, and much more.

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