LT1431IS8#TRPBF

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	LT1431
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	1mA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	50ppm/°C Typical
Tolerance:	±0.4%
Current - Output:	100mA
Voltage - Output (Max):	36V
Voltage - Output (Min/Fixed):	2.5V
Output Type:	Adjustable
Reference Type:	Shunt
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The LT1431IS8#TRPBF forms part of a range of advanced Voltage Reference circuits from Linear Technology, providing a precise voltage output with a very low temperature coefficient and capable of operating over a wide range of temperatures and current drawn from the supply.Voltage references provide an accurate voltage source for use in signal conditioning and power converters. The LT1431IS8#TRPBF provide an accurate Reference output and features an ultra-low temperature coefficient that can provide precision of 0.05%/°C.It is a high performance, low cost and current reference device, with very low noise and fast settle time and can provide ±75mV accuracy from 0° to 85°C with a choice of 8 reference output voltages including 1.2V, 1.5V, 1.8V, 2.5V, 4.3V, 5V, 8V and 8.5V. It includes an internal power-on reset and has an operating temperature of -40° to +125°C.It is available in a low profile thin 8-Ld MSOP package which minimizes power requirements, making it ideal for deployment in battery powered portable products or other applications where board area is at a premium.The LT1431IS8#TRPBF is designed for applications such as LCD bias voltage, digital-to-analog converters, microprocessors and processors, analog-to-digital converters, and microcontroller reference supplies, and many others.The working principle of the LT1431IS8#TRPBF is straightforward and easy to understand. It consists of an input terminal which receives the reference voltage, a differential amplifier, a temperature compensation network and an output terminal which provides the accurate and stable reference voltage.The voltage reference is composed of several components, including a pair of matched transistors, a pair of resistors, and a pair of diodes. The two transistors are carefully matched to remain equal in characteristics and to ensure that the voltage at the output remains stable over a wide temperature range.The transistors form the foundation of the differential amplifier. A feedback resistor is also used for negative feedback, which reduces offset errors, gain errors and input-referred noise. The two diodes help to increase the overall stability of the circuit and reduce any residual temperature coefficient.The difference between the input voltage and the reference voltage is then amplified by the differential amplifier and then subtracted from the voltage at the input terminal to ensure that the reference voltage is maintained despite temperature fluctuations or other external influences.In summary, the LT1431IS8#TRPBF is a high-precision circuit that can offer a wide range of reference output voltages, exceptional accuracy and temperature stability, and an ultra-low temperature coefficient of 0.05%/°C. This compact voltage reference is an ideal solution for many applications, including LCD bias voltage, digital-to-analog converters, microprocessors and processors, analog-to-digital converters, and microcontroller reference supplies.

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