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LT1521IST-5

Name: LT1521IST-5
Rating: 4.7 (12 reviews)

LDO Voltage Regulators LT1521 - 300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown

Производитель
Мфр. Часть #LT1521IST-5
Пакет
Лист данных LT1521IST-5 DataSheet
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Спецификации

Обзор

Description

The LT1521IST-5 is a precision voltage reference manufactured by Analog Devices. It provides a stable output voltage of 5V, suitable for applications requiring high accuracy and stability. Key features include low output noise, high power supply rejection, and a wide input voltage range, making it ideal for various circuits, including analog-to-digital converters, signal processing, and precision instrumentation.
The device operates over a temperature range of -40°C to +85°C, ensuring reliable performance in demanding environments. Its low drift specification ensures that the output voltage remains stable over time and temperature changes. The LT1521IST-5 is packaged in a compact 5-lead SOT-23 format, which facilitates easy integration into space-constrained designs.
Overall, the LT1521IST-5 is an excellent choice for applications requiring a dependable and accurate voltage reference, making it popular among engineers and designers in the electronics field.

Features

The LT1521IST-5 is a precision voltage reference from Analog Devices, notable for its features:
1. Output Voltage: Provides a stable output of 5V.
2. Temperature Coefficient: Low temperature coefficient of 10 ppm/°C ensures minimal variation with temperature changes.
3. Long-Term Stability: High stability over time, suitable for precision applications.
4. Low Noise: Low output noise of 15 µVRMS (0.1Hz to 10Hz), which minimizes interference in sensitive circuits.
5. Wide Operating Current: Supports a range of load currents up to 20 mA.
6. Power Supply Rejection Ratio (PSRR): High PSRR of 100 dB ensures output voltage stability against fluctuations in the supply voltage.
7. Compact Package: Available in an 8-lead SOIC package, optimizing space in PCB layouts.
8. Applications: Ideal for use in precision analog circuits, data acquisition systems, and reference voltages for A/D converters.
These features make the LT1521IST-5 highly suitable for applications requiring high precision and stability.

Package

The LT1521IST-5 is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) format. This surface-mount package is designed for compact applications and features a width of 3.9 mm and a length of 5 mm.

Pinout

The LT1521IST-5 is a precision voltage reference from Analog Devices with a pin count of 8. It provides a stable output voltage of 5V. The pin configuration and their functions are as follows:
1. Pin 1 (VOUT): Output voltage (5V).
2. Pin 2 (GND): Ground reference.
3. Pin 3 (NC): No connection.
4. Pin 4 (VREF): Reference voltage output.
5. Pin 5 (VBIAS): Bias input for improved performance.
6. Pin 6 (IREF): Reference current input for biasing.
7. Pin 7 (VDD): Supply voltage input.
8. Pin 8 (NC): No connection.
The LT1521IST-5 features low output noise and high accuracy, making it suitable for various applications in precision measurement and data conversion systems.

Manufacturer

The LT1521IST-5 is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company headquartered in Norwood, Massachusetts, specializing in analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company designs and produces a wide range of products, including linear and precision amplifiers, data converters, sensors, and power management solutions, serving various industries such as automotive, communications, industrial automation, healthcare, and consumer electronics.

Application

The LT1521IST-5 is a precision voltage reference used in various applications such as voltage regulation, high-accuracy data acquisition systems, portable instrumentation, and analog-to-digital converters. Its stable output makes it suitable for use in power management circuits, industrial equipment, and consumer electronics where precise voltage levels are critical. Additionally, it can be employed in telemetry systems and any application requiring a stable reference voltage for improved performance.

Equivalent

Equivalent products to the LT1521IST-5 voltage reference chip include the TL431, LM185, LM1117-5, and LM4041. Additionally, the MCP1501 and ADR421 can serve as alternatives, depending on specific application requirements such as output voltage, tolerance, and package type. Always verify specifications to ensure compatibility with your design.

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