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LM385BDRE4-2-5
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LM385BDRE4-2-5

Product Overview

Category

LM385BDRE4-2-5 belongs to the category of voltage references.

Use

It is primarily used as a precision voltage reference in various electronic circuits.

Characteristics

  • LM385BDRE4-2-5 provides a stable and accurate voltage reference.
  • It has a low temperature coefficient, ensuring consistent performance across different temperatures.
  • The device operates with low power consumption, making it suitable for battery-powered applications.
  • LM385BDRE4-2-5 offers excellent line regulation and load regulation characteristics.
  • It has a wide operating voltage range and can be used in both single-supply and dual-supply systems.

Package

The LM385BDRE4-2-5 comes in a small SOT-23 package, which is compact and easy to handle.

Essence

The essence of LM385BDRE4-2-5 lies in its ability to provide a precise and stable voltage reference, ensuring reliable operation of electronic circuits.

Packaging/Quantity

The LM385BDRE4-2-5 is typically available in reels containing a quantity of 3000 units per reel.

Specifications

  • Output Voltage: 2.5V
  • Initial Accuracy: ±0.5%
  • Temperature Coefficient: 20ppm/°C
  • Operating Temperature Range: -40°C to +85°C
  • Supply Voltage Range: 1.9V to 5.5V
  • Quiescent Current: 120µA (typical)
  • Line Regulation: 0.02%/V (typical)
  • Load Regulation: 0.04%/mA (typical)

Detailed Pin Configuration

The LM385BDRE4-2-5 has three pins:

  1. Vout: Output pin, provides the stable 2.5V reference voltage.
  2. GND: Ground pin, connected to the common ground of the circuit.
  3. Vin: Input pin, connected to the supply voltage.

Functional Features

  • LM385BDRE4-2-5 offers a precise and stable output voltage reference.
  • It has low power consumption, making it suitable for battery-powered applications.
  • The device exhibits excellent line and load regulation characteristics.
  • LM385BDRE4-2-5 operates over a wide temperature range, ensuring reliable performance in various environments.

Advantages and Disadvantages

Advantages

  • Provides accurate and stable voltage reference.
  • Low temperature coefficient ensures consistent performance across temperatures.
  • Suitable for both single-supply and dual-supply systems.
  • Compact SOT-23 package for easy handling.

Disadvantages

  • Limited output voltage options (only 2.5V in this case).
  • Not suitable for high precision applications requiring extremely low temperature coefficients.

Working Principles

LM385BDRE4-2-5 utilizes bandgap voltage reference technology to generate a stable and accurate output voltage. It compensates for temperature variations by employing a temperature-dependent current source and a voltage divider network. This ensures that the output voltage remains constant even with changes in temperature and supply voltage.

Detailed Application Field Plans

The LM385BDRE4-2-5 finds application in various electronic circuits where a stable and accurate voltage reference is required. Some common application areas include:

  1. Analog-to-Digital Converters (ADCs)
  2. Digital-to-Analog Converters (DACs)
  3. Voltage regulators
  4. Battery management systems
  5. Precision measurement equipment

Detailed and Complete Alternative Models

Some alternative models to LM385BDRE4-2-5 that provide similar functionality are:

  1. LM4040CIZ-2.5: 2.5V precision shunt voltage reference
  2. LT1236ACS8-2.5: 2.5V micropower precision series voltage reference
  3. REF5025AIDGKT: 2.5V precision voltage reference with low temperature drift

These alternative models can be considered based on specific requirements and design constraints.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LM385BDRE4-2-5 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LM385BDRE4-2-5 in technical solutions:

  1. Q: What is LM385BDRE4-2-5? A: LM385BDRE4-2-5 is a precision voltage reference IC manufactured by Texas Instruments.

  2. Q: What is the voltage output of LM385BDRE4-2-5? A: The voltage output of LM385BDRE4-2-5 is fixed at 2.5 volts.

  3. Q: What is the purpose of using LM385BDRE4-2-5 in a circuit? A: LM385BDRE4-2-5 is commonly used as a stable voltage reference for various applications, such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and voltage regulators.

  4. Q: What is the accuracy of LM385BDRE4-2-5? A: LM385BDRE4-2-5 has a typical accuracy of ±0.2% at room temperature.

  5. Q: Can LM385BDRE4-2-5 operate over a wide temperature range? A: Yes, LM385BDRE4-2-5 can operate over a temperature range of -40°C to +85°C.

  6. Q: How much current does LM385BDRE4-2-5 consume? A: LM385BDRE4-2-5 has a low quiescent current consumption of typically 15µA.

  7. Q: Is LM385BDRE4-2-5 suitable for battery-powered applications? A: Yes, LM385BDRE4-2-5 is well-suited for battery-powered applications due to its low power consumption.

  8. Q: Can LM385BDRE4-2-5 be used in both analog and digital circuits? A: Yes, LM385BDRE4-2-5 can be used in both analog and digital circuits that require a stable voltage reference.

  9. Q: Does LM385BDRE4-2-5 require any external components for operation? A: No, LM385BDRE4-2-5 does not require any external components. It is a self-contained voltage reference.

  10. Q: Are there any alternative voltage references similar to LM385BDRE4-2-5? A: Yes, some alternatives to LM385BDRE4-2-5 include LM4040, LT1004, and REF02. These are also popular precision voltage reference ICs.

Please note that the answers provided here are general and may vary depending on specific application requirements.