OP400GPZ Integrated Circuits (ICs)

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The OP400GPZ is a general-purpose, dual high speed operational amplifier with a wide range of applications, from general-purpose amplifier applications to instrumentation amplifiers and buffers. With its high input impedance, low voltage noise, and low feedback capacitance, the OP400GPZ is ideal for linear, instrumentation, or buffer circuit applications.

Input and Output Characteristics

The OP400GPZ has excellent input and output characteristics. It has a wide common-mode input voltage range of 0 ± 10V, with high common-mode rejection. The open-loop gain is a solid 80dB, ensuring excellent linearity and signal fidelity. The input impedance is very high -- up to 10GΩ. Output current is 1A and voltage swing is ±20V +/-5%.

Noise Performance

The OP400GPZ has excellent noise performance, due to its low voltage noise of 0.5nV/√Hz and very low power consumption of 2.5mW. This is useful for low-noise circuit applications, where low voltage noise is vital for reliable signal acquisition or system operation.

Slew Rate and Bandwidth

The OP400GPZ has a high slew rate of 20V/μs, allowing for fast signal transitions and excellent signal fidelity. Its ultra-wide frequency response of 20MHz is a major benefit for applications such as sample-and-hold circuits and signal processing. Combined, these two properties make the OP400GPZ an excellent choice for signal acquisition and signal conditioning.

Protection

The OP400GPZ also has excellent protection mechanisms, including current-limiting, thermal-limiting and reverse polarity protection. This makes it suitable for applications where builtin protection is a must for high system reliability.

Applications

Due to its excellent performance, the OP400GPZ is suitable for a wide range of applications, such as audio amplifiers, instrumentation amplifiers and buffers, analog-to-digital converters, sample-and-hold circuits, and precision rectifiers. Its low noise and high slew rate make it an excellent choice for low-noise and wideband signal acquisition applications.

Working Principle

The external pin connections of the OP400GPZ are designed so that the two inputs are connected to an external feedback network. The amplifier then amplifies the difference between the two inputs and produces an output voltage, based on the current input. The output voltage is proportional to the gain of the amplifier and is determined by the resistors in the feedback network. By changing the resistors, the gain is adjustable, allowing the OP400GPZ to be used in a variety of gain-controlled applications.

Conclusion

The OP400GPZ is a high-quality, general-purpose dual high-speed operational amplifier, with excellent input, output and noise performance, high slew rate and wideband frequency response, and robust protection mechanisms. It is suitable for a wide range of applications, such as audio amplifiers, instrumentation amplifiers and buffers, analog-to-digital converters, and sample-and-hold circuits. The OP400GPZ is ideal for linear, instrumentation, or buffer circuit applications.

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