OPA2822E/250G4

Current - Input Bias:	9µA
Base Part Number:	OPA2822
Supplier Device Package:	8-VSSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	4 V ~ 12.6 V, ±2 V ~ 6.3 V
Current - Output / Channel:	150mA
Current - Supply:	9.6mA
Voltage - Input Offset:	200µV
Series:	SpeedPlus™
-3db Bandwidth:	400MHz
Gain Bandwidth Product:	240MHz
Slew Rate:	170 V/µs
Output Type:	--
Number of Circuits:	2
Amplifier Type:	Voltage Feedback
Part Status:	Active
Packaging:	Tape & Reel (TR)

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OPA2822E/250G4 Application Field and Working Principle

The OPA2822E/250G4 is a precision, high-speed, high-performance, Ultra-MHz CMOS operational amplifier (op-amp). This device offers a low noise power supply voltage range of 0.15 - 5V and a wide bandwidth of 250MHz, making it ideal for a variety of instrumentation, linear, and buffer applications.

Application Field

The OPA2822E/250G4 can be used for signal amplification, signal buffering, active filtering, precision rectification, and offset cancellation. It is a great solution for applications involving precision timing measurements, small signal signal conditioning, signal acquisition, and automatic gain control. Additionally, the OPA2822E/250G4 is suitable for a variety of audio applications such as power amplifiers, AD/DA converters, and headphone amplifiers.

Operational Amplifier Basics

An operational amplifier (op-amp) is a DC-coupled wide-bandwidth electronic amplifier that utilizes an external feedback loop between two input terminals (Non-inverting, +, and Inverting, -). External feedback is used to control the gain and the bandwidth of the amplifier. It also eliminates the offset voltage between the two inputs.

Working Principle

The key components of the OPA2822E/250G4 are its two input terminals. This op-amp has a three-stage differential amplifier with input transistors in the first stage, a current mirror in the second stage, and an output transistor in the third stage. The OPA2822E/250G4 utilizes its inverting input to create a negative feedback loop. This loop keeps the output voltage close to the voltage of the inverting input. In order for the op-amp to work properly, the difference between the voltages of the non-inverting and inverting inputs must be small enough for the loop to complete. The OPA2822E/250G4 amplifies the current from the inverting input to the non-inverting input by a factor determined by the feedback resistor. The output current from the op-amp is a scaled version of the input current. The OPA2822E/250G4 has a gain of 1 + (Rf / Ri).

Conclusion

The OPA2822E/250G4 is an excellent choice for a variety of Instrumentation, Linear, and Buffer amplifier applications. It is a high-speed, high-performance, and low-noise amplifier with a wide bandwidth of 250MHz. The OPA2822E/250G4 utilizes an external feedback loop between its two input terminals to control the gain and bandwidth of the amplifier. The OPA2822E/250G4 is a great solution for precision timing measurements, active filtering, and audio power amplifying.

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