LM285LPRE3-2-5

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The LM285LPRE3-2-5 is a precision low power voltage reference that belongs to the PMIC (Power Management IC) - Voltage Reference family. It is designed to produce a precise 2.5V reference voltage with a maximum drift of 1ppm/°C at the output pin. It is available in both the surface mount and through-hole packages and can operate with a wide range of input voltages from 1V to 18V.

The LM285LPRE3-2-5 is a stable voltage reference that is ideal for applications requiring accuracy, low power consumption and low noise. It is suited for industrial, medical, automotive, consumer, and communication applications. It can be used for industrial and consumer applications such as temperature measurement, monitoring, and controller systems. It has a low temperature coefficient of typically 0.3mV/°C which ensures stable performance in a wide range of temperature conditions.

The LM285LPRE3-2-5 device is designed to provide a stable and accurate 2.5V output voltage. It is an extremely low power device that consumes only 0.7µA of supply current when operating at its rated output current of 40mA. It is capable of providing up to 100mA of output current with negligible output error. The LM285LPRE3-2-5 is provided with an enable pin which allows the user to turn the output on or off as needed.

The LM285LPRE3-2-5 works on the principle of bandgap voltage reference. The device comprises of two main blocks- a bandgap reference and an amplifier. The bandgap reference block consists of a PN junction that generates an voltage proportional to absolute temperature. This voltage is then buffered by an internal amplifier to provide a precise and stable output voltage. The output voltage of the reference is determined by the external resistor divider. The output voltage is then adjusted by the internal feedback amplifier to compensate for offset, current, and temperature changes.

The LM285LPRE3-2-5 is also provided with over-temperature protection circuitry which provides protection against short circuits and result in a shutdown of the device when the temperature exceeds the specified limit. The device is also provided with an open-drain output which allows the user to interface the output directly to digital logic circuits. The device operates over a wide range of temperatures from -55°C to +125°C.

In summary, the LM285LPRE3-2-5 is an extremely low power, precise, and stable voltage reference. It provides an accurate 2.5V output voltage with a maximum drift of 1ppm/°C, with a low temperature coefficient of 0.3mV/°C. It is suitable for various applications such as temperature measurement, monitoring, and control systems. It is also provided with over-temperature protection and an open-drain output which further improves its performance and reliability.

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