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LT1431IS8

Name: LT1431IS8
Rating: 4.7 (12 reviews)

Voltage References LT1431 - Programmable Reference

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データシート LT1431IS8 DataSheet
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仕様

概要

Description

The LT1431IS8 is a precision voltage reference and adjustable shunt regulator manufactured by Analog Devices. It features a high accuracy output voltage, typically around 1.25V to 36V, and can be adjusted using external resistors. This device is designed for applications requiring a stable reference voltage in various electronic circuits, including power supplies, signal conditioning, and instrumentation.
Key features include low temperature drift, high output impedance, and a wide operating temperature range. The LT1431IS8 is available in an 8-lead SOIC package, making it suitable for space-constrained applications. Its low noise and fast transient response make it ideal for precision analog applications.
The device can operate with supply voltages up to 40V and has a typical output current range from a few microamperes to several milliamperes, allowing for flexibility in design. Overall, the LT1431IS8 is a reliable choice for engineers looking to implement a versatile voltage reference in their designs.

Features

The LT1431IS8 is a precision voltage reference from Analog Devices. Key features include:
1. Voltage Reference: Outputs a programmable voltage, typically set to 1.25V.
2. Low Temperature Coefficient: Offers excellent temperature stability, with a typical coefficient of only 10 ppm/°C.
3. Wide Operating Range: Supports input voltages from 1.25V up to 40V.
4. Low Output Noise: Ensures minimal noise interference, making it suitable for sensitive applications.
5. Fast Settling Time: Achieves quick response, ideal for applications needing rapid adjustments.
6. High Accuracy: Provides tight tolerances, typically ±0.5% at room temperature.
7. Small Package: Available in an 8-lead SOIC package, suitable for space-constrained designs.
8. Adjustable Output: The output voltage can be adjusted using an external resistor divider.
These features make the LT1431IS8 suitable for use in precision applications such as power supplies, instrumentation, and reference circuits.

Package

The LT1431IS8 is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) package type. This surface-mount package is designed for compact applications, providing efficient thermal performance and space-saving benefits.

Pinout

The LT1431IS8 is a precision voltage reference with a pin count of 8. It operates as a programmable shunt voltage reference, providing high accuracy and low temperature drift.
### Pin Functions:
1. Pin 1 (Vref): Reference voltage output (1.25V).
2. Pin 2 (Vout): Output voltage (connected to the load).
3. Pin 3 (Iref): Reference current output.
4. Pin 4 (GND): Ground connection.
5. Pin 5 (N.C.): No connection (not internally connected).
6. Pin 6 (N.C.): No connection (not internally connected).
7. Pin 7 (Vref): Reference voltage input (connects to the circuit).
8. Pin 8 (Vout): Output voltage (for external circuitry).
The device is widely used in applications requiring stable reference voltages, such as in power supplies and data converters.

Manufacturer

The LT1431IS8 is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits. Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices serves various sectors, including communications, automotive, industrial, and consumer electronics. The company is well-regarded for its precision analog products, including voltage references, amplifiers, and data converters, contributing significantly to advancements in electronic technology.

Application

The LT1431IS8 is a high-performance voltage reference used in various applications such as precision voltage regulation, power supplies, and analog-to-digital converters. It is ideal for use in consumer electronics, industrial equipment, instrumentation, and automotive systems, providing accurate reference voltages in systems requiring high stability and low temperature drift. Its features include low noise and fast response time, making it suitable for high-frequency applications.

Equivalent

The LT1431IS8 is a precision voltage reference. Equivalent products include the LM1401, TL431, and TLV431. These alternatives offer similar voltage reference functionalities, with variations in specifications like accuracy, temperature coefficient, and output impedance. Always check datasheets for specific requirements to ensure compatibility.