Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

The AD8028ARMZ-REEL is a precision high speed rail-to-rail operational amplifier, specifically designed to meet the demanding requirements of instrumentation and automotive applications. The product has an 11 nV/√Hz input-referred noise and a low-distortion-bandwidth of more than 200 MHz, enabling the AD8028ARMZ-REEL to achieve excellent performance in applications where dynamic range and signal-to-noise ratio are critical. This amplifier provides excellent settling performance and rail-to-rail outputs, making it ideal for data acquisition systems and active filters. The device is available in a dual version, AD8028-2ARMZ-REEL, to reduce board space and provide additional flexibility.

Application Field

The AD8028ARMZ-REEL is suitable for a wide range of applications, including instrumentation and automotive. It can be used for signal conditioning, precision gain control, and active filters, as well as in data acquisition systems and datalogging applications. It is also suitable for video applications such as video filters, video amplifiers, and video convergence control. The amplifier also provides excellent performance in high frequency applications, including analog and digital modulation, and audio applications, such as active filters and precision audio amplifiers.

Working Principle

The AD8028ARMZ-REEL works by taking an input signal and amplifying it. This is accomplished by the amplifier\'s three-stage architecture, consisting of a pair of p-channel MOSFETs in parallel with a pair of n-channel MOSFETs. The MOSFETs allow the rail-to-rail output swing. The input circuitry is designed to prevent the amplifier from saturating and ensure an accurate gain setting. The amplifier has a low-distortion, high-speed feedback loop that provides accurate and consistent gains up to 200 MHz. The amplifier also has a high-impedance input buffer and an internal output stage that allow it to be used in any application where low-noise, high-speed operation is required.

The AD8028-2ARMZ-REEL dual amplifier is a convenient way to reduce board space and provide additional system flexibility. The device features matched current outputs and a single supply voltage, and can operate on up to a 2V supply voltage. The amplifier has thermal shutdown protection and is provided in the convenient, space-saving QSOP package for improved thermal performance.

In conclusion, the AD8028ARMZ-REEL is a high performance, low noise precision amplifier, designed to meet the demanding requirements of instrumentation and automotive applications. It is available in a dual version, the AD8028-2ARMZ-REEL, to reduce board space and provide additional system flexibility. The amplifier is ideal for applications requiring high-speed, high-accuracy signal processing, and the internal output stage and low-distortion feedback loop enable accurate and consistent gains up to 200 MHz. The amplifier is available in the QSOP package, allowing for improved thermal performance.