REF5040IDR Integrated Circuits (ICs)

Noise - 0.1Hz to 10Hz:	3µVp-p
Base Part Number:	REF5040
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Current - Supply:	1.2mA
Voltage - Input:	4.296 V ~ 18 V
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	3ppm/°C
Tolerance:	±0.05%
Current - Output:	10mA
Voltage - Output (Min/Fixed):	4.096V
Output Type:	Fixed
Reference Type:	Series
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionThe Ref5040IDR is a three-terminal, low-dropout voltage reference family. It is commonly used in mobile communication and consumer electronics applications, including portable computers, tablets, cellular phones, and audio gear. This device is ideally suited for powering a variety of semiconductor solutions such as microcontrollers, analog-to-digital converters, voltage regulators, and digital signal processors. The device offers excellent accuracy, transient response, and low-noise performance. It has an ultra-low temperature coefficient which ensures that its operating temperature does not exceed the specified operating temperature range. Additionally, its low-dropout voltage ensures that it has a low power consumption. Application FieldThe Ref5040IDR is capable of providing a reference voltage of up to 5.0V. This makes it ideal for powering a wide range of components and circuit solutions. It is commonly used in embedded systems, mobile phones, and consumer electronics where it is required to maintain a precise and stable voltage. For example, it can be used to power microcontrollers, voltage regulators, and analog-to-digital converters. Additionally, it can be used to power various sensors, such as pressure and temperature sensors, which require a precise and stable voltage source.Working PrincipleThe Ref5040IDR utilizes a voltage reference element to regulate its output voltage. The reference element is an oscillator that generates a signal that is used to control the output voltage. The voltage output is proportional to the signal generated by the oscillator. The oscillator is controlled by the supply voltage and the input signal. When the supply voltage is increased, the oscillator signal is increased, in turn increasing the output voltage. Conversely, when the supply voltage is decreased, the oscillator signal is decreased, in turn decreasing the output voltage. The oscillator is also able to adjust the output voltage when the input signal changes. This is achieved by using two resistors in a voltage divider network. The voltage divider network is connected to the negative input of the oscillator. When the input signal is increased, the output of the voltage divider network is decreased, in turn decreasing the voltage output of the device. Likewise, when the input signal is decreased, the voltage output of the device is increased. The Ref5040IDR uses an ultra-low temperature coefficient, which ensures that the output voltage remains constant over temperature. Additionally, the device has a low-noise performance, a fast transient response, and an extremely low temperature coefficient which ensures a stable operating temperature range. Conclusion The Ref5040IDR is a three-terminal, low-dropout voltage reference family. It is an ideal device for powering a variety of semiconductor solutions such as microcontrollers, analog-to-digital converters, voltage regulators, and digital signal processors. The device offers excellent accuracy, transient response, and low-noise performance. It has a low-dropout voltage, an ultra-low temperature coefficient, and fast transient response, which ensures its stable operation. The Ref5040IDR operates on a reference element that generates a signal that is used to control the output voltage. The device is capable of providing a reference voltage of up to 5.0V, making it ideal for powering a wide range of components and solutions.

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