MAX6138CEXR33+T

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The MAX6138CEXR33+T is a Voltage Reference that falls within the Power Management Integrated Circuit (PMIC) field. In the Voltage Reference domain, it is characterized as a precision shunt voltage reference, which is designed to precisely generate a 2.5-V reference in an area- and power-efficient package. It features precision, low temperature drift, a low noise regulator and a bandgap reference circuit.The MAX6138CEXR33+T is an improvement on the previous low-noise voltage reference in the MAX6138 family, known as the MAX6138CEUR33+T. The new version boasts an improved temperature coefficient stability performance of 0.05 ppm/°C and a tighter reference voltage tolerance of ±0.6 mV, while maintaining the same low-noise performance of 10 nV/√Hz.The MAX6138CEXR33+T works by using a shunt voltage regulator. Its primary components are a bandgap reference circuit and a resistor using a process that enables very precise, 0.001-Ω precision. The bandgap reference circuit produces a temperature-compensated, low-noise reference voltage. Then, the voltage regulator compares the voltage of the shunt resistor, which is set to 2.5 V, and the bandgap reference circuit feedback voltage. At the same time, the reference voltage is maintained by adjusting the amount of current going through the shunt resistor, which produces the output reference voltage that is sensed by the voltage regulator. When the output voltage drops, the voltage regulator will increase the current going through the shunt resistor until it meets the desired voltage.The MAX6138CEXR33+T’s shunt voltage converter is optimized for precision and power efficiency. It also features an ultra-low-power idle mode, an active-low reset output and a maximum output error of just 0.6 mV. Its design caters to a variety of application needs where precision is a priority, such as data converters, battery-backed systems, portable devices and instrumentation systems.The MAX6138CEXR33+T is supplied in a space-saving, SOT-23-5 and microSOP-8 packages, providing an ideal alternative to larger precision voltage references. By employing a process that enables very precise, 0.001-Ω precision, this voltage reference is ideal for applications where precision and space efficiency are critically important.In conclusion, the MAX6138CEXR33+T is an innovative Voltage Reference device that caters to a variety of application needs with its accuracy, efficiency, and ease of use. It is a good solution for applications that require precision, low power consumption, and a compact packaging solution. By using the shunt voltage converter the device offers improved accuracy, low temperature operation, and low noise performance that is unmatched by other Voltage References on the market.

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