MAX6225ACPA

Noise - 0.1Hz to 10Hz:	1.5µVp-p
Base Part Number:	MAX6225
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 70°C (TA)
Current - Supply:	3mA
Voltage - Input:	8 V ~ 36 V
Noise - 10Hz to 10kHz:	1.3µVrms
Series:	--
Temperature Coefficient:	2ppm/°C
Tolerance:	±0.04%
Current - Output:	15mA
Voltage - Output (Min/Fixed):	2.5V
Output Type:	Fixed
Reference Type:	Series, Buried Zener
Part Status:	Active
Packaging:	Tube

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IntroductionPMIC (Power management integrated circuits) are electronic circuits that are used to manage, control and regulate the energy of a system. Voltage Reference is a functional group of PMIC, used to provide reference voltages for other ICs within the system. The MAX6225ACPA is a voltage reference which supports the voltage tracking of AVDD and DVDD supplies, allowing the system to run at optimum performance from low loads to high loads.MAX6225ACPA featuresThe MAX6225ACPA voltage reference consists of a voltage reference source and a tracking loop control logic. Its key features include: - Operating voltage between 2.3V and 12V- Output voltage range between 0.8V and 10V- 5kHz slew rate- Tracking resolution of ±2.5mV- Integrated buffer for external capacitors- Overvoltage protection up to 25VThe MAX6225ACPA can be used as an on-chip voltage reference and has good tracking accuracy, low ripple and wide output voltage range. It is designed to improve the performance of devices such as analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).ApplicationThe MAX6225ACPA voltage reference is widely used for its high power supply tracking accuracy, low-power consumption and fast response time. It is suitable for various applications, such as power management systems, high-speed communications, and analog-to-digital and digital-to-analog converters.It can be used in cell phone base stations, WIFI access points and two-way radios. It is also suitable for network and automotive applications such as automotive safety systems, entertainment systems, power management systems and data acquisition systems.Working principlesThe MAX6225ACPA voltage reference source operates in two stages. In the first stage, the device generates the reference voltage. This is done by an internal impedance network which drives the reference voltage from the VREF pin. The network consists of transistors and resistors which provide a precise reference voltage.In the second stage, the tracking loop control logic generates the predetermined output voltage for the AVDD and DVDD supplies. This is done by comparing the reference voltage with the voltage output from the AVDD and DVDD supplies. If the voltage outputs are higher than the reference voltage, the MAX6225ACPA will reduce its output voltage, and if the output voltages are lower than the reference voltage, the device will increase its output voltage. This loop of comparing, adjusting and regulating continues until the expected output voltage is reached.ConclusionThe MAX6225ACPA voltage reference is a feature-rich PMIC. Its advanced voltage reference source, wide output voltage range and fast tracking loop makes it an efficient and reliable solution for various applications. The device can be used to provide optimal performance in low to high load conditions and is suitable for the power management, high-speed communications and data acquisition systems.

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