LM385M

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	LM385
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Current - Cathode:	55µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	50µVrms
Series:	--
Temperature Coefficient:	150ppm/°C
Tolerance:	±2%
Current - Output:	20mA
Voltage - Output (Max):	5.3V
Voltage - Output (Min/Fixed):	1.24V
Output Type:	Adjustable
Reference Type:	Shunt
Part Status:	Not For New Designs
Packaging:	Tube

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Introduction

The LM385M Voltage Reference series is a highly reliable, wide-temperature range, low power consumption voltage source manufactured by Texas Instruments. It is the exact reference voltage source that is used in industrial and automotive applications. This voltage source is used in situations where precision and accuracy are a must, such as in digital instruments, analog measuring devices, and medical equipment. This article will discuss the application field and working principle of the LM385M voltage reference.

Application Field

The LM385M Voltage Reference series is designed for use in a variety of industrial and automotive applications, such as precision monitoring and control systems, analog measuring devices, and medical equipment. Some of the applications that the LM385M is popularly used in include nonvolatile analog-to-digital converters, motor speed controllers, temperature control loops, motor speed control, IGPs (intelligent gate arrays), and audio/video equipment.The LM385M is also used in automotive and communication applications. It is particularly useful in stationary and vehicular power systems, portable instrumentation, telecommunications, GPS systems, and radio frequency testing. This voltage source is also used in audio power, fan speed, and current measuring applications.

Working Principle

The LM385M voltage reference works according to the principles of thermodynamic and electrical stability. This voltage reference is made up of three basic components: a thermal sensor, an amplifier, and a voltage regulator. The thermal sensor is responsible for measuring and controlling temperature, while the amplifier and voltage regulator controls the output voltage to provide a stable output voltage.The LM385M works by converting a weak signal into a strong, stable output voltage. As it converts the signal, the LM385M uses an amplifier to amplify the output voltage and a voltage regulator to maintain the output voltage at a fixed level. This input voltage can also be adjusted using external resistors and capacitors, which help to reduce the amount of line noise that may be present.The LM385M also has several protective and monitoring devices integrated into it. These devices help protect the device from mechanical, environmental and electrical damage, as well as the over-voltage situations that could lead to a power supply failure.

Conclusion

The LM385M Voltage Reference series of voltage reference is an essential component of any power system that requires precision and accuracy. This versatile component is widely used in industrial and automotive applications, such as non-volatile analog converters, motor speed controllers, and IGPs. Its working principle is based on thermodynamic and electrical stability, and it has several protective and monitoring devices that ensure the device is safe and secure. With its high reliability and wide temperature range, the LM385M is an ideal voltage source for industrial and automotive applications.

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