INA128U/2K5

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The INA128U/2K5 is a high performance instrumentation amplifier designed for a broad range of applications. It is a versatile, low-cost solution for a variety of instrumentation, data acquisition, and portable medical applications. The INA128U/2K5 offers excellent noise performance and wide bandwidth, combined with an adjustable offset voltage, programmable gain, and a unity-gain stability of ± 0.5%. It is an ideal choice for precision measurements in industrial, medical, and scientific fields.

Application Field

The INA128U/2K5 is a high-performance, low-power instrumentation amplifier designed for use in a broad range of applications. It can be used in fields like medical and industrial instrumentation, data acquisition, portable medical monitoring, and aerospace systems. Its high accuracy and low-noise performance make it suitable for applications that require precision measurements and low-noise signal processing. It is also ideal for medical applications, such as patient monitors, ECG and EEG measurements, and fluid flow and pressure measurements.

Working Principle

The INA128U/2K5 is designed to operate in a closed-loop configuration, with the input grounded at one end and the output at the other. This eliminates any offset and eliminates the possibility of instability. The internal amplifier provides a gain of up to 2000, with a programmable offset voltage. By adjusting the offset voltage, the gain can be accurately set for any given application. The internal compensation network ensures a unity gain stability of ± 0.5% over temperature and a wide frequency range. The input impedance of the amplifier is typically a few hundred ohms, and the output impedance is typically less than one ohm.

The INA128U/2K5 features an input range of 4V to 30V and a low-noise output of 25uVrms and a wide bandwidth of 5KHz to 20 KHz. The output can be configured for single-ended or differential output, which makes it suitable for use in low-noise applications. Its low power consumption makes it ideal for portable medical applications and is compatible with standard CMOS, TTL, or ECL logic. Additionally, it features fast settling time, low output distortion, and full temperature compensation.

Conclusion

The INA128U/2K5 is a high-performance, low-power instrumentation amplifier designed for a broad range of applications. Its high accuracy and low-noise performance make it suitable for precision measurements and low- noise signal processing. It is an ideal choice for portable medical, industrial, and scientific devices. The INA128U/2K5 features an adjustable offset voltage, programmable gain, and a unity-gain stability of ± 0.5%. Its widebandwidth and low-noise output make it a great choice for medical and portable applications.

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