SPX431LM1-L

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The SPX431LM1-L is a voltage reference designed to provide precision voltages with extremely low power consumption. It is based on the company\'s proprietary reference complementary bipolar technology and operates over a wide input voltage range of 2.7 to 5.5V. It provides various fixed voltage options and a range of 1.2 to 5.0VV. It is designed to provide a low temperature coefficient, high accuracy, high stability and long term reliability.

As a Power Management Integrated Circuit (PMIC) with Voltage Reference, SPX431LM1-L provides a regulated voltage reference with low noise and low power consumption. Its typical thermal stability can reach 10ppm/O C, and maximum voltage drift is 30ppm/O C over the lifetime and temperature range. It has a high accuracy output voltage with a typical initial accuracy of 0.5% and a long term stability of 0.1%. SPX431LM1-L also provides adjustable output voltage and ideal for applications where stability with low noise and low power is needed.

SPX431LM1-L is designed mainly for industrial applications like instrumentation, medical and security products. It is also suitable for equipment that needs precision voltage in a confined area with low power consumption. Operating over a wide input voltage range makes it suitable for battery powered applications.

The working principle of SPX431LM1-L is based on an internal reference voltage and an error amplifier. The reference voltage is generated by an ultra-stable temperature compensated zener diode, which has a very low “noise” and a high temperature stability. Its output is then compared to a reference voltage in order to generate an active signal to adjust the current flowing through the error amplifier, thus obtaining a stable output voltage.

SPX431LM1-L has a wide input voltage range and can provide stable output voltage regardless of the input voltage variation and temperature. Its low quiescent current of 0.7mA makes it efficient, even in low power applications. Its high accuracy, low noise, and low power make it suitable for precision voltage reference applications.

In conclusion, the SPX431LM1-L voltage reference is an efficient, low noise and low power reference for precision voltage reference applications. It has wide input voltage range, high accuracy and long-term stability. It is suitable for industrial and battery powered applications like instrumentation, medical and security products.

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