MAX6192BESA+

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The MAX6192BESA+ is a precision low-dropout (LDO) voltage reference in a tiny 2mm x 2mm TDFN package. With a low temperature coefficient (TC) down to 10 ppm/°C, it delivers a temperature stability that is near that of many bandgaps. At 25°C, the device can maintain a ±1% system-level accuracy over a wide input voltage range of 2.7 to 5V. The MAX6192BESA+ also offers low noise and low output voltage drift with respect to temperature, which minimizes output voltage changes due to temperature fluctuations. This makes the MAX6192BESA+ the ideal choice for precision reference designs in space-constrained applications.

The MAX6192BESA+ offers a low quiescent current of 0.9µA, and is stable with output capacitors as low as 5µF. The device is ideal for temperature sensors, portable media players, digital electronic scales and all applications needing an accurate, low-noise reference, such as precision data converters and RF systems.

The MAX6192BESA+ is designed to generate a low-noise and low-drift voltage reference output. The device includes an internal precision bandgap, an adjustable amplifier buffer, and a buffered reference output. It operates from a single supply voltage ranging from 2.7V to 5.5V and delivers an output reference voltage of 1.225V (VREF) with a +2%, -3% accuracy over the temperature range as specified. The MAX6192BESA+ also has an enable pin and thermal shutdown capability.

The internal reference of the MAX6192BESA+ is composed of an adjustable amplifier with a precision bandgap reference. An externally adjustable amplifier is used to accurately set the voltage and a temperature sensor is used to trim the output voltage over temperature changes. The bandgap reference generates a very low temperature coefficient voltage, which is low noise due to its high-frequency parasitic-noise-rejection loop. The amplifier buffer provides a high-impedance buffer to preserve the low noise characteristics of the bandgap reference and is adjustable to mediate the output voltage compatibility with different loads.

The MAX6192BESA+ can be used in portable applications, as it has a wide operating range with excellent load and line regulation. The device is also very suitable for precision temperature measurement and other medical applications which require low output voltage variations over temperature. Its ultra-low quiescent current and power-up sequencing features make it a perfect fit for battery-powered systems.

The MAX6192BESA+ is the perfect choice for any application that requires a small, low-noise, and high-accuracy voltage reference. Its low quiescent current enables maximum battery life in portable systems, while its wide input voltage range makes it very attractive in low-voltage systems. Its low temperature coefficient and low noise characteristics make it suitable for precision data converter and RF systems, where accuracy and low noise levels are crucial.

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