LM4140CCMX-4.1

Noise - 0.1Hz to 10Hz:	2.2µVp-p
Base Part Number:	LM4140
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 - Supply:	400µA
Voltage - Input:	1.8 V ~ 5.5 V
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	10ppm/°C
Tolerance:	±0.1%
Current - Output:	8mA
Voltage - Output (Min/Fixed):	4.096V
Output Type:	Fixed
Reference Type:	Series
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LM4140CCMX-4.1 Voltage Reference Features and Working Principle

The LM4140CCMX voltage reference from Texas Instruments is designed to provide reliable precise output voltages for a variety of electronic applications, such as power supplies, refrigerators and various industrial products. This device is rated for up to 1.2 volts, with a reference jumper setting that can increase the output voltage up to 6 volts. It features a unique PowerSave technology that enables the device to consume less than 5 milliwatts of power when not in use, making it one of the most energy efficient voltage references available.The LM4140CCMX voltage reference consists of two main components: the reference circuit, which determines the output voltage, and the feedback loop, which acts as a regulating mechanism to ensure the output voltage remains accurate and constant. The reference circuit consists of two components: a pair of Zener diodes and a bandgap voltage reference circuit. The Zener diodes are connected in series and limit the output voltage to the desired level. The bandgap voltage reference circuit is used to compare the current level to the reference voltage and provide feedback for the regulating circuit.The regulating circuit consists of an amplifier, a feedback resistor, and a potentiometer. The amplifier is used to adjust the value of the feedback resistor, and the potentiometer is used to adjust the amplitude of the output voltage. This in turn ensures the output voltage remains constant regardless of fluctuations in the input voltage.The LM4140CCMX is internally protected against overvoltage and overcurrent conditions and is rated for up to 8 amps of continuous current output. It has an operating temperature range of -40°C to +125°C, making it ideal for industrial applications.Overall, the LM4140CCMX is an excellent solution for a reliable and precise voltage reference. It offers low power consumption and an adjustable output voltage, making it suitable for a wide variety of applications.

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