LM285MX-2.5/NOPB IC VREF SHUNT 2.5V 8SOIC

Series:	--
Packaging:	Cut Tape (CT)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Reference Type:	Shunt
Output Type:	Fixed
Voltage - Output (Min/Fixed):	2.5V
Current - Output:	20mA
Tolerance:	±1.5%
Temperature Coefficient:	150ppm/°C
Noise - 0.1Hz to 10Hz:	--
Noise - 10Hz to 10kHz:	120µVrms
Voltage - Input:	--
Current - Supply:	--
Current - Cathode:	20µA
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	LM285

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Introduction

The LM285MX-2.5/NOPB is a highly reliable voltage reference IC from Texas Instruments. It features a 2.500V regulated voltage that is stable over temperature and time. In its popular 8-pin DIP package, this precision device offers an excellent supply voltage rejection ratio, excellent line regulation, and a low temperature coefficient. The LM285MX-2.5/NOPB can be cascaded with any low power op amps to form an accurate and stable precision reference circuit.

Application Field

The LM285MX-2.5/NOPB provides a very accurate voltage reference and is ideal for use in a variety of precision circuitry applications. It can be used in battery-powered analogue applications, as well as in audio and video systems. Its low power consumption makes it an excellent choice for portable equipment and other battery-operated applications.The LM285MX-2.5/NOPB can also be used in digital electronic circuits. It can be used to provide an accurate reference voltage for analogue-to-digital converters, voltage regulators, and various other digital systems.

Working Principle

The LM285MX-2.5/NOPB is a shunt voltage reference. The device is constructed with an avalanche breakdown of a carefully controlled germanium diode. The breakdown voltage is established using an external precision resistor. When the device is operating, current flows from the input voltage across the resistor and through the germanium diode. This current is then limited by the breakdown of the diode, which is maintained at a very accurate and stable reference voltage.The LM285MX-2.5/NOPB\'s high supply voltage rejection ratio ensures that the output voltage is unaffected by any changes in the supply voltage. Its low temperature coefficient ensures that the output voltage is stable over temperatures ranging from -55°C to 150°C. Its low input current also ensures that the device requires only a small amount of current in order to maintain its regulated voltage.

Conclusion

The LM285MX-2.5/NOPB is a highly reliable voltage reference IC from Texas Instruments. Its excellent voltage rejection ratio, line regulation, and low temperature coefficient make it an ideal choice for precision circuitry applications. It can be used in battery-powered analogue applications, as well as in digital electronic circuits for analog-to-digital and voltage regulator applications. The device is also very low power and can be cascaded with other ICs to form a precision reference circuit.

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