ADR291FRZ-REEL

Noise - 0.1Hz to 10Hz:	50µVp-p
Base Part Number:	ADR291
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:	15µA
Voltage - Input:	3 V ~ 15 V
Noise - 10Hz to 10kHz:	--
Series:	XFET®
Temperature Coefficient:	20ppm/°C
Tolerance:	±0.12%
Current - Output:	5mA
Voltage - Output (Min/Fixed):	2.5V
Output Type:	Fixed
Reference Type:	Series
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ADR291FRZ-REEL is a low-dropout (LDO) voltage reference device produced by Analog Devices. This device belongs to the category of PMIC – Voltage References, or VR for short. It is a cost-effective and reliable solution for providing highly accurate, low-dropout voltage reference to various circuit applications.The ADR291FRZ-REEL device is composed of a two-channel, two-terminal, low-dropout (LDO) voltage reference with a built-in thermal sensor. The device has a low reference accuracy of ±2.0mV and a low pressure drop (dropout) of typically 9mV. It also features a high temperature range operation of -40°C to +125°C and a guaranteed output current of 150mA at 25°C.The device is designed for use in a variety of applications and is particularly suitable for providing tight tolerance, low-dropout voltage references for precision analog-to-digital converters (ADCs) and other digital-to-analog converters (DACs). It is also suitable for supply voltages down to 2.7V. The ADR291FRZ-REEL device is constructed with a low-noise “zero-dropout” P-channel MOSFET which provides very low quiescent current operation. It also features internal reverse current protection to ensure voltage regulation and current source/sink operation. Furthermore, an internal adjustable resistor can be used to optimize and control output voltage to compensate any desired changes on the output voltage.The working principle and application of the ADR291FRZ-REEL device can be summarized into two main aspects:1. Low-dropout (LDO) voltage reference: The device ensures that the output voltage remains accurate and stable by providing a low-dropout voltage reference. This is achieved through the use of a low-noise P-channel MOSFET and an adjustable resistor to compensate for any desired changes on the output voltage.2. Reverse current protection: This is achieved by making use of a reverse current protection circuit. The circuit prevents excessive currents from entering the device and thus, protecting the device from any damage.Overall, the ADR291FRZ-REEL is an ideal and cost-efficient voltage reference device for a variety of applications, such as precision analog-to-digital and digital-to-analog converters. By providing tight tolerance and low-dropout voltage references, the device helps ensure stable voltage output and protection from any excessive currents. Its low noise level, high temperature operational range and adjustable resistors make this device suitable to meet various requirements.

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