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LT1121IST-5

Name: LT1121IST-5
Rating: 4.7 (12 reviews)

LDO Voltage Regulators LT1121 - Micropower Low Dropout Regulators with Shutdown

Производитель
Мфр. Часть #LT1121IST-5
Пакет
Лист данных LT1121IST-5 DataSheet
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Спецификации

Обзор

Description

LT1121IST-5 is a precision voltage reference from Analog Devices, designed for high accuracy and low noise applications. It provides a stable output voltage of 5V with a maximum tolerance of ±1.5 mV over its temperature range, making it suitable for a variety of precision measurement and calibration tasks. The device operates over a wide temperature range from -40°C to +125°C, ensuring reliability in diverse environments.
Key features include low drift, low output noise, and excellent load and line regulation, which enhance its performance in applications such as data converters, instrumentation, and sensor interfaces. The LT1121IST-5 comes in an 8-lead MSOP package, facilitating ease of integration into compact designs. Overall, it is an ideal choice for engineers seeking a reliable and accurate reference voltage for their electronic systems.

Features

The LT1121IST-5 is a high-precision voltage reference from Analog Devices, featuring:
1. Output Voltage: Fixed at 5V with a tolerance of ±1%.
2. Temperature Coefficient: Low temperature drift of 10 ppm/°C, ensuring stable performance over varying temperatures.
3. Initial Accuracy: Excellent initial accuracy of ±0.5% at 25°C.
4. Low Noise: Provides low output noise, enhancing measurement accuracy in sensitive applications.
5. Load Regulation: Excellent load regulation performance, maintaining output stability under varying load conditions.
6. Wide Operating Range: Input voltage range from 6V to 30V, accommodating various power supply configurations.
7. Package Type: Offered in a small 3-lead SOT-23 package, suitable for space-constrained designs.
8. Applications: Ideal for use in precision data acquisition systems, instrumentation, and reference circuits.
These features make the LT1121IST-5 a reliable choice for high-performance electronic applications requiring stable reference voltages.

Package

The LT1121IST-5 is packaged in a 5-lead SOT-23 (Small Outline Transistor) package. This type of package is compact, surface-mount, and suitable for space-constrained applications.

Pinout

The LT1121IST-5 is a precision voltage reference and a low dropout (LDO) linear regulator with a pin count of 8.
### Pin Functions:
1. VIN: Input voltage; connects to the power supply.
2. GND: Ground reference.
3. VOUT: Output voltage; supplies a regulated output.
4. SHDN: Shutdown control; active low to disable the output.
5. NC: No connect; not internally connected to the device.
6. COMP: Compensation pin; used for frequency compensation.
7. VREF: Reference voltage output; provides a stable reference.
8. VSET: Voltage set pin; adjusts the output voltage.
This device is known for its low noise and high accuracy in voltage regulation, making it suitable for various applications in analog and digital circuitry.

Manufacturer

The LT1121IST-5 is manufactured by Analog Devices, Inc. Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company specializes in providing a wide range of semiconductor solutions for various applications, including industrial automation, automotive, telecommunications, healthcare, and consumer electronics. The LT1121IST-5 itself is a precision voltage reference, indicating Analog Devices' focus on producing high-quality components for applications requiring accurate and reliable performance. The company is known for its innovation and commitment to advancing technology in the electronics sector.

Application

The LT1121IST-5 is a precision voltage reference and can be used in various applications, including instrumentation, data acquisition systems, precision analog-to-digital converters (ADCs), and digital-to-analog converters (DACs). It's suitable for automotive, industrial, and consumer electronics where stable voltage reference is critical for accurate measurements and signal processing.

Equivalent

The LT1121IST-5 is a low-dropout linear regulator (LDO) with a fixed output voltage of 5V. Equivalent products include the LM1117-5.0, MCP1825S-5002E, and MIC5205-5.0. Additionally, the TPS7A47 and LP2985-5.0 are also suitable alternatives, depending on specific application requirements like load current and dropout voltage. Always verify compatibility with your specific circuit.

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