MCP6S91T-E/MS

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MCP6S91T-E/MS is a monolithic low-power amplifier, and it is a combination of a low-noise, high linearity operational amplifier (OPA) and a sturdy voltage follower, thus it is classified as linear - amplifiers - instrumentation, OP amps, buffer amps.

Its application field mainly includes various functional amplifying circuits, such as audio pre-amplifiers, video amplifiers, cable drivers, line trans-impedance amplifiers, industrial process control amplifiers, transimpedance amplifiers, and other measuring or test equipments, among which the most widely used is in audio systems and videos.

MCP6S91T-E/MS is made of an N-channel input stage with a precision-matched p-channel and two n-channel feedback elements. Compared with the classic OP amps, it has the advantages of low-power operation, wide supply range and low quiescent current. The voltage gain is a function of the input resistors controlled by the quiescent current. The maximum quiescent current is about 25uA.

The well-designed output section of MCP6S91T-E/MS provides excellent noise control performance, wide output swing, and prevents saturation and overshoot of the output waveform. In order to ensure good linearity, the input offset voltage is below 500uV.

In terms of power supply rejection ratio, the MCP6S91T-E/MS achieves 10dB at 10kHz, and maintains excellent values over wide frequency range. Also, its highest fundamental frequency of oscillation reaches 1.2MHz.

In order to maximize the performance of MCP6S91T-E/MS, a printed circuit board layout should be implemented for preventing the interference of their components. The recommended footprints choice should be SMD version, and their minimum resolution should be 10 mil. In addition, the maximum trace length from bypass capacitor to pin is less than 5mm.

In conclusion, the MCP6S91T-E/MS is a perfect example of high performance operational amplifiers and voltage followers, and it is a perfect fit for linear - amplifiers - instrumentation, OP amps, buffer amps. It can withstand wide power supply range, and has no trouble delivering consistent low-noise signals with low quiescent current.

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