ISL28127FUBZ-T7

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ISL28127FUBZ-T7 is a low power, single-supply rail-to-rail amplifier from Intersil. It is widely used in diverse applications as a linear amplifier, instrumentation amplifier, and op amp. This amplifying device offers a range of features such as high speed, wide dynamic range and rail-to-rail input and output swing.

Application Field

Because of its high speed and rail-to-rail feature, the ISL28127FUBZ-T7 is widely used in low power, measuring and monitoring applications, such as low voltage data converters and battery powered portable devices. Its rail-to-rail output also allows it to be used in a variety of amplifying systems, such as high power amplifiers and single supply line drivers. Its high speed also makes it suitable for high frequency applications, such as audio and video systems.

The ISL28127FUBZ-T7 is especially suitable for mobile devices, such as mobile phones and PDAs, as it is low-power and requires very little power to operate. This makes it suitable for battery-powered applications, such as portable audio players, fitness sensors and shock detectors.

Working Principle

ISL28127FUBZ-T7 is a differential amplifier with a unique Class AB operating mode. This so called "class AB" mode allows the device to be used as a linear amplifier, instrumentation amplifier and buffer amp. It is also capable of driving capacitive load which makes it ideal for audio and video output applications.

The input stage consists of two pairs of transistors, the push-pull pair and the common-source pair. The output stage consits of a pair of transistors, the emitter follower pair. This allows the device to have a rail-to-rail input and output swing. The device has an open-loop gain of 110dB and a bandwidth of up to 30MHz. It can also provide a low output offset voltage of 15mV, making it suitable for sensitive applications.

The ISL28127FUBZ-T7 provides excellent power efficiency due to its low supply current. It can be operated on a single supply voltage of 3V and provide an output of ±1V. This makes it ideal for portable and battery powered applications.

Conclusion

The ISL28127FUBZ-T7 is an ideal amplifier for applications where a low power, single-supply rail-to-rail amplifier is required. Its unique Class AB operating mode and wide dynamic range make it suitable for low power, measuring and monitoring applications, as well as high power, single supply line drivers and high frequency applications. Its low supply current, offset voltage and bandwidth also make it suitable for mobile devices, audio and video systems and capacitive load applications.

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