LM385BDR-1-2

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LM385BDR-1-2

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IC VREF SHUNT 1% 8SOIC

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Especificações

Atributo Valor
Part Status Obsolete
Reference Type Shunt
Output Type Fixed
Voltage - Output (Min/Fixed) 1.235V
Current - Output 20 mA
Tolerance ±1%
Temperature Coefficient 20ppm/°C Typical
Noise - 10Hz to 10kHz 60µVrms
Operating Temperature 0°C ~ 70°C (TA)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number LM385
Current - Cathode 15 µA

Visão Geral

Description

The LM385BDR-1-2 is a precision voltage reference component commonly used in electronic circuits. It provides a stable voltage output, typically around 1.235 volts, which is crucial for accurate analog-to-digital conversions and other precision applications. This device operates with a low current, making it energy-efficient and suitable for battery-powered devices. The LM385BDR-1-2 is designed to offer a low temperature coefficient and excellent stability over a wide temperature range, ensuring consistent performance in various environmental conditions.
Packaged in a small form factor, it is ideal for space-constrained applications. The component is also known for its ease of use, requiring minimal external components to function effectively. Its versatility allows it to be used in various applications, including voltage regulators, power supplies, and data acquisition systems. Overall, the LM385BDR-1-2 is a reliable and efficient solution for precise voltage reference needs in electronic designs.

Equivalent

The LM385BDR-1.2 is a precision voltage reference chip. Equivalent products include:
1. TL431 – Adjustable precision shunt regulator.
2. LM4041 – Micropower shunt voltage reference.
3. LM185/285/385-1.2 – Series of low-voltage reference diodes from different manufacturers.
4. LT1004 – Micropower voltage reference diode.
5. REF3312 – Low power, low dropout, precision voltage reference.
Always verify pin compatibility and electrical specifications when considering replacements.

Features

The LM385BDR-1-2 is a precision voltage reference device designed to provide a stable reference voltage with excellent accuracy and reliability. Key features include:
1. Voltage Reference: Provides a fixed output voltage of 1.235V, making it suitable for use in various precision measurement and control systems.
2. Temperature Coefficient: Offers a low temperature coefficient, ensuring minimal variation in output voltage over varying temperature ranges, which enhances performance stability.
3. Wide Operating Range: Capable of operating over a wide range of supply voltages and temperatures, making it versatile for different applications.
4. Low Power Consumption: Consumes minimal power, making it ideal for battery-operated and low-power applications.
5. High Accuracy: Features high initial accuracy, reducing the need for calibration in many applications.
6. Compact Package: Available in small form factors, such as SOIC (Small Outline Integrated Circuit), allowing for easy integration into space-constrained designs.
These features make the LM385BDR-1-2 suitable for use in precision analog-to-digital converters, voltage monitoring systems, and low-power applications.

Pinout

The LM385BDR-1.2 is a micropower voltage reference diode. It comes in a small surface-mount package, typically available in an 8-pin SOIC (Small Outline Integrated Circuit) configuration. However, the key functional pins of the LM385 series are primarily two:
1. V+ (Anode): This pin is connected to the input voltage or power supply.
2. V- (Cathode): This pin provides the reference voltage output, which is typically 1.235V for the LM385-1.2 variant.
The LM385BDR-1.2 functions as a precision voltage reference, often used where a stable and low-voltage reference is required. Its low power consumption makes it suitable for battery-operated devices. The voltage reference is temperature-compensated, allowing it to maintain accuracy across temperature variations. The device is primarily used in applications like analog-to-digital converters, digital-to-analog converters, and other precision voltage applications.

Manufacturer

The LM385BDR-1-2 is manufactured by Texas Instruments. Texas Instruments, commonly known as TI, is an American technology company headquartered in Dallas, Texas. It specializes in designing and manufacturing semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. TI is widely recognized for its significant role in the development of the semiconductor industry and its contributions to innovation in electronics. The company serves a broad range of industries, including automotive, industrial, personal electronics, and communications equipment. Texas Instruments is known for providing high-quality, reliable products and has a strong presence in the analog, embedded processing, and digital light processing (DLP) markets.

Application

The LM385BDR-1.2 is a precision voltage reference diode designed for various applications requiring a stable voltage reference. Its primary application areas include:
1. Voltage Regulation: Used in circuits requiring stable voltage references such as power supplies and voltage regulators.
2. Analog-to-Digital Converters (ADC): Provides a stable reference voltage for high-precision ADCs.
3. Datalogging Equipment: Ensures accurate voltage references in portable data acquisition systems.
4. Battery-Powered Devices: Offers low-voltage operation, ideal for energy-efficient applications.
5. Calibration Equipment: Used in test equipment for accurate voltage calibration.
Its low power consumption and high accuracy make it suitable for precision applications across various electronic devices.

Package

The LM385BDR-1.2 is a voltage reference IC typically available in a surface-mount package, specifically the Small Outline Transistor (SOT-23) package. This format is compact, making it suitable for applications requiring space-saving components on a printed circuit board.

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