LM4132CMFX-2.0/NOPB

Noise - 0.1Hz to 10Hz:	190µVp-p
Base Part Number:	LM4132
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Current - Supply:	100µA
Voltage - Input:	2.448 V ~ 5.5 V
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	20ppm/°C
Tolerance:	±0.2%
Current - Output:	20mA
Voltage - Output (Min/Fixed):	2.048V
Output Type:	Fixed
Reference Type:	Series
Part Status:	Active
Packaging:	Tape & Reel (TR)

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A Voltage Reference, or VR, is a specialized type of analog integrated circuit that is used to measure and control the flow of electric current in a power system. The LM4132CMFX-2.0/NOPB is a voltage reference integrated circuit specifically designed to provide precise, low-voltage reference sources for microcomputer, instrumentation and other precision applications.

Features

• Wide Input Voltage Range (2.7V - 16.5V)
• Low Input Current Consumption: 4.5mA typ.
• Low Temperature Coefficient: ± 15 PPM/ºC
• Tight Load Regulation: 0.01% typ.
• Low Output Voltage Ripple: 5mVpp typ.
• Robust Package Options: 8-Pin PDIP, 8-Pin SOIC, 9-Pin 3.3V

Applications

The LM4132CMFX-2.0/NOPB is a low-dropout voltage reference ideal for a variety of battery-powered designs. It can be used in any circuit where a precise voltage reference is required, such as transducers, data converters, and instrumentation systems. It is well suited for precision power regulation, particularly in low-voltage applications, since it has a low input voltage threshold and can provide clean, stable output across a wide temperature range. Additionally, the LM4132CMFX-2.0/NOPB is suitable for use in wide variety of consumer and industrial applications, including IoT (internet of things) devices and power management systems.

Working Principle

The LM4132CMFX-2.0/NOPB features a temperature-compensated voltage reference circuit that combines a temperature-compensated diode and a current source in a single integrated circuit. The temperature-compensated diode is used to maintain a precise voltage reference with respect to temperature. This is achieved by introducing a positive temperature coefficient into a negative-temperature coefficient (NTC) feedback network. The resulting combination provides the advantage of linearity over the entire temperature range. The current source is used to provide an output current that is proportional to the input voltage and is used to drive an external load. In operation, the LM4132CMFX-2.0/NOPB measures the input voltage and then sets an internal voltage reference that is used to control the output current. This voltage reference is maintained by a temperature-compensated feedback network, allowing the reference voltage to remain stable and accurate over temperature. The output current is then adjusted accordingly to provide the desired voltage output.

Conclusion

Thanks to its combination of features and performance, the LM4132CMFX-2.0/NOPB is well-suited for a wide variety of applications. It provides a high-accuracy, low-voltage reference source that is capable of maintaining precision across a wide temperature range, making it an ideal choice for instrumentation, data conversion and low-voltage power regulation applications.

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