ZXRE125CFTA Integrated Circuits (ICs)

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	ZXRE125
Supplier Device Package:	SOT-23
Package / Case:	TO-236-3, SC-59, SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	8µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	60µVrms
Series:	--
Temperature Coefficient:	75ppm/°C
Tolerance:	±0.5%
Current - Output:	20mA
Voltage - Output (Min/Fixed):	1.22V
Output Type:	Fixed
Reference Type:	Shunt
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PMIC - Voltage Reference

Voltage references are key building blocks in many integrated circuits and devices, playing an important role in many systems. They are used to maintain constant voltage levels with respect to an external power supply or ground, despite changes in the conditions that would normally cause these levels to vary. ZXRE125CFTA is one such example of a voltage reference. This article will discuss the application field and working principles of ZXRE125CFTA.The ZXRE125CFTA is a precision voltage reference manufactured by Renesas, a leading semiconductor provider. It is a flexible and accurate voltage reference that can be used in a broad range of applications such as power supply monitoring, high-accuracy signal conditioning and fault detection. It supports a wide input range of 4.5V to 16V and offers a low dropout of 0.2V. The ZXRE125CFTA also features very fast transient response time leading to highly reliable operation. The ZXRE125CFTA has an operating temperature of -40 °C to +125 °C, which makes it suitable for automotive, industrial and consumer electronics applications. The device is available in the popular SO-8 package and is fully specified across these temperatures.ZXRE125CFTA is based on Voltage Reference (VREF) architecture, which uses a dynamic tracking mechanism to track the input voltage. The output voltage of a Voltage Reference is derived from a fixed voltage reference source, such as a bandgap reference voltage. The reference source acts as a reference point from which all variation in the output voltage is compared.The ZXRE125CFTA uses two main circuits in its design — a voltage reference and an error amplifier. The Voltage Reference circuit consists of a bandgap circuit, which provides an adjustable reference voltage, and an offset transistor circuit, which helps to temperature compensate the output voltage. The Error Amplifier acts as an active circuit to compensate for any changes in the input voltage. The Error Amplifier is configured as an inverting amplifier, with the positive input connected to power supply and the negative input connected to the output of the Voltage Reference circuit. The Error Amplifier is designed to track the input voltage linearly and accurately, while the Voltage Reference circuit provides the reference point.The ZXRE125CFTA offers various features that make it suitable for use in a wide range of applications. The device has an output accuracy of ±2.5mV, making it suitable for precision measurements and signal processing. The device also offers low temperature coefficient of ±3 ppm/°C, which makes it highly stable even in extreme temperature conditions. It features an inner loop hysterisis of 10mV, making it ideal for ripple rejection in noise sensitive systems. In summary, the ZXRE125CFTA is a versatile and accurate voltage reference, which offers excellent temperature stability, fast transient response and low operating current. Its wide operating range, high accuracy and low operating power make it suitable for a range of power supply monitoring, high-accuracy signal conditioning and fault detection applications.

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