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Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

LT1881AIS8#PBF is a highly integrated, single supply, low power instrumentation amplifier that monitors and controls high precision signals. It offers an extended input common-mode voltage range and rail-to-rail output swing, making it suitable for a variety of applications including lead acid charge controllers, electrochemical analyzers, and linear drive circuits.

Application Field

The LT1881AIS8#PBF is suitable for a variety of low and medium speed applications, such as pH monitoring, anti-lock braking systems, motor control, voltage level measurement, data acquisition, and digital-to-analog and analog-to-digital converters. Its broad common-mode voltage range and rail-to-rail output swing allow it to accurately measure signals ranging from millivolts to hundreds of volts in both single-ended and differential modes. Additionally, LT1881AIS8#PBF is capable of precisely amplifying and controlling signals over temperatures spanning -55C to 125C.

Working Principle

LT1881AIS8#PBF is a high-performance instrumentation amplifier that features a programmable gain and an adjustable output common-mode voltage. It is designed to accurately monitor and control a wide range of signals, from millivolts to hundreds of volts, in both single-ended and differential modes. The gain of the amplifier is set using an external resistor network, while the output common-mode voltage is programmable using an onboard digital potentiometer, allowing it to be adjusted for an optimal output. The LT1881AIS8#PBF is powered by a single supply and requires a typical supply current of only 7mA.

LT1881AIS8#PBF utilizes a high-precision amplifier architecture that minimizes the effects of common mode errors and offset voltage drift. The amplifier is designed to provide a wide input common-mode voltage range of -2.6V to 65V and a rail-to-rail output swing, allowing it to easily handle low-level and high-voltage signals. Additionally, the LT1881AIS8#PBF features a low power consumption, making it ideal for battery-powered applications.

The LT1881AIS8#PBF also incorporates several protection features, including short-circuit protection and thermal protection, ensuring reliable operation over a wide range of conditions. It is also well-suited for a variety of temperature sensing applications, such as medical, automotive and security systems.

Conclusion

The LT1881AIS8#PBF is an integrated, single-supply instrumentation amplifier that is well-suited for a variety of low and medium speed applications. Its extended input common-mode voltage range, rail-to-rail output swing, programmable gain, adjustable output common-mode voltage, low power consumption, and integrated protection features make it ideal for monitoring and controlling signals with accuracy and reliability.

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