National Semiconductor Corporation introduced a new rail to rail input and output CMOS operation with a maximum bandwidth of 1V amplifier LMV951。 The operational amplifier has the advantages of high bandwidth and low power, and is suitable for mobile phones, handheld electronic products, portable medical equipment and low-power measuring instruments. National Semiconductor's LMV951 chip can drive 500pF with a unit gain bandwidth of 2.7MHz capacitance Load and ensure stable and reliable operation at the same time. If it is in the temperature range of - 40 ℃ to 125 ℃, the voltage noise of this chip is only 25nV/sqrtHz. In addition, the common mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) of LMV951 operational amplifier are up to 80dB, making this chip suitable for high gain and high-performance systems; Another advantage of high CMRR is the ability to support non inverting system configurations. LMV951 chip can use 1V to 3V power supply voltage to perform rail to rail input and output functions, and can ensure rail to rail output can give full play to its dynamic performance in the low voltage range. This chip has buffered output, so whether resistance Load size can enhance its gain linearity and reduce signal distortion. In addition, since this chip has rail to rail input, it is also suitable for low-voltage systems with more stringent signal noise requirements. For systems that must save energy as much as possible, this operational amplifier is additionally equipped with a shutdown pin, which can reduce the power supply current of the system to 5uA. In 2005, National Semiconductor launched a series of 15 high-precision, low-voltage and low-power amplifiers. The signal accuracy of these chips has been greatly improved, and the power consumption and voltage noise have also been significantly reduced; LMV951 chip is the latest model product of this series of amplifiers, which is manufactured by the VIP50 BiCMOS process technology of American National Semiconductor. LMV951 chips are purchased in 1000 units at a unit price of 0.78 US dollars, and a large number of them are available from stock.
