OPA561PWP/2KG4

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OPA561PWP/2KG4 Application Field and Working Principle

The OPA561PWP/2KG4 is a high-speed monolithic amplifier with standard performance, created for power supply regulation using the instrumentation topology. It is a versatile addition to the ever-growing array of linear amplifiers, op amps, buffer amps available in the market today.

Overview

The OPA561PWP/2KG4 semiconductor integrated circuit (IC) is a precision amplifier with a maximum slew rate of 120V/μs. It has a wide power supply range that covers from 5V up 10.5V. The device’s rail-to-rail output and input offset voltage ensures precision in applications such as power supply regulation. The OPA561PWP/2KG4 is capable of driving capacitive loads up to 500pF. Designed to support power supply regulation, the device offers superb input common-mode rejection and gain-bandwidth product of 4.2MHz. The low operating current (850μA) makes it an ideal choice for battery-powered applications due to its low-power consumption. The open loop gain of the OPA561PWP/2KG4 is generally good to 120dB.

Package Type and Pinout Details

The OPA561PWP/2KG4 comes in a tiny SOIC-8 (Small Outline Integrated Circuit) package or MSOP-10 package, depending on the customer requirements. The device can be used in either standard pin configuration or x-pin configuration. The pinout details include power in pins, power supply output pins and signal ground pins.

Application Field

The OPA561PWP/2KG4 can be found in a variety of applications such as high-speed signal conditioning in data acquisition or signal processing applications. It is also used in precision filtering and signal low-noise amplification. The device is suitable for power supply regulation, which calls for low-power consumption and efficient operation. In addition, the high accuracy and speed of the device make it an ideal choice for linear filters and instrumentation amplifiers.

Working Principle

The OPA561PWP/2KG4 is based on a standard instrumentation amplifier topology. In this topology, the input voltage is compared against a reference voltage and the output is proportional to the difference between the two. The amplifier has a high open-loop gain which enables it to provide gain-bandwidth product of 4.2MHz. The low operating current (850μA) ensures low power consumption. The rail-to-rail output and input offset voltage of the amplifier ensures precision in power supply applications.

Advantages

The OPA561PWP/2KG4 offers several advantages in terms of performance. The device offers high slew-rate of 120V/μs and an input common-mode rejection of 90 dB. It also has a wide power supply range of 5-10.5V. The low power consumption of the device makes it suitable for battery-powered applications, while the low input offset voltage of 0.75 mV makes it ideal for precision power regulation. As the device is based on instrumentation topology, the open loop gain of the amplifier allows it to provide an accurate output.

Conclusion

The OPA561PWP/2KG4 is an excellent choice for power supply regulation applications. The device offers high input common-mode rejection and a wide power supply range, making it ideal for precision power regulation. The ultra-high bandwidth of 4.2MHz and the high slew rate of 120V/μs make it suitable for a variety of signal processing or data acquisition applications. The device is based on a standard instrumentation amplifier topology and has a low operating current for low power consumption. All in all, the OPA561PWP/2KG4 is a highly reliable and versatile device for a variety of Linear-Amplifiers-Instrumentation, OP Amps and Buffer Amps applications.

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