LME49990MAX/NOPB

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The LME49990MAX/NOPB is a low-noise, high-precision, low-input offset voltage instrumentation amplifier. It is part of a family of ICs belonging to Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps. It comprises of a differential input stage, a pair of gain setting resistors, and an output stage in a single package.The primary advantages of this device include excellent noise performance, low input offset voltage and a precision LT-spice design model. The LME49990MAX/NOPB is suitable for use in high-impedance and low source resistance applications, such as medical or test and measurement.The input stage of the LME49990MAX/NOPB consists of two high-input impedance differential amplifiers. The input is single-ended and symmetric, allowing easy connection to external sensors and sources. The input can swing up to 8Volt beyond the bias voltage. Common mode voltage rejection ratio is superb at 120dB min. With high input impedance and low output impedance, it is possible to achieve high gain without driving the gain setting resistors into the nonlinear region.The output stage of the LME49990MAX/NOPB comprises of two buffered voltage amplifiers. The buffering increases the output current and eliminates the need for impedance matching. The output can swing up to 10V below the supply voltage. The output impedance is very low at 1Ω max, which ensures minimum error due to load current changes.Both the input and output stages are capable of handling large common mode and differential voltages. This makes it suitable for even the most demanding applications. The LT-spice model of the LME49990MAX/NOPB ensures precise operation with very low input and output offset voltages.In summary, the LME49990MAX/NOPB is capable of high input and output impedance and low output impedance. It has an excellent common mode rejection ratio of 120dB. The LT-spice design model allows it to be used in demanding applications where precise operation is required. It is suitable for use in medical, test and measurement, and other applications that require high-impedance and low source resistance.

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