Texas Instruments
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LM4040C20QDBZR
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LM4040C20QDBZR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Precision voltage reference - Low dropout voltage - High accuracy and stability - Wide operating temperature range - Low quiescent current

Package: SOT-23 (Small Outline Transistor 23)

Essence: LM4040C20QDBZR is a precision voltage reference IC that provides a stable and accurate output voltage.

Packaging/Quantity: The LM4040C20QDBZR is available in a SOT-23 package and is typically sold in reels of 3000 units.

Specifications

  • Output Voltage: 2.048V
  • Initial Accuracy: ±0.1%
  • Temperature Coefficient: 50ppm/°C
  • Dropout Voltage: 60mV (typical)
  • Quiescent Current: 60µA (typical)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM4040C20QDBZR has three pins:

  1. VOUT: Output pin, connected to the load.
  2. GND: Ground pin, connected to the circuit ground.
  3. VIN: Input pin, connected to the power supply.

Functional Features

  • High Precision: The LM4040C20QDBZR provides a highly accurate and stable output voltage of 2.048V.
  • Low Dropout Voltage: With a dropout voltage of only 60mV, it can operate with low input-output differentials.
  • Low Quiescent Current: The IC consumes only 60µA of current, making it suitable for low-power applications.
  • Wide Operating Temperature Range: It can operate reliably in a temperature range from -40°C to +85°C.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Low dropout voltage - Low quiescent current consumption - Wide operating temperature range

Disadvantages: - Limited output voltage options (only 2.048V)

Working Principles

The LM4040C20QDBZR is based on a bandgap reference circuit that generates a stable voltage reference using temperature-compensated components. It utilizes a precision trimming technique to achieve high accuracy and stability.

Detailed Application Field Plans

The LM4040C20QDBZR is commonly used in various applications, including: 1. Precision analog-to-digital converters (ADCs) 2. Digital-to-analog converters (DACs) 3. Voltage regulators 4. Battery-powered devices 5. Portable electronic devices 6. Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the LM4040C20QDBZR include: 1. LM4040AIM3-2.5/NOPB 2. LT1461ACS8-2.5#PBF 3. MAX6126AASA25+ 4. REF102CU 5. ADR421ARMZ

These models offer similar functionality and can be used as alternatives depending on specific requirements.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق LM4040C20QDBZR في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of LM4040C20QDBZR in technical solutions:

  1. Question: What is LM4040C20QDBZR?
    - Answer: LM4040C20QDBZR is a precision voltage reference IC manufactured by Texas Instruments.

  2. Question: What is the output voltage of LM4040C20QDBZR?
    - Answer: The output voltage of LM4040C20QDBZR is fixed at 2.048V.

  3. Question: What is the purpose of using LM4040C20QDBZR in technical solutions?
    - Answer: LM4040C20QDBZR 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. Question: What is the accuracy of LM4040C20QDBZR?
    - Answer: LM4040C20QDBZR has a typical accuracy of ±0.1% at room temperature.

  5. Question: Can LM4040C20QDBZR operate over a wide temperature range?
    - Answer: Yes, LM4040C20QDBZR can operate from -40°C to +125°C, making it suitable for both industrial and automotive applications.

  6. Question: Is LM4040C20QDBZR available in different package options?
    - Answer: Yes, LM4040C20QDBZR is available in a small SOT-23 package, which is popular for space-constrained designs.

  7. Question: Does LM4040C20QDBZR require an external capacitor for stability?
    - Answer: No, LM4040C20QDBZR does not require an external capacitor for stability. It is internally compensated.

  8. Question: Can LM4040C20QDBZR be used in battery-powered applications?
    - Answer: Yes, LM4040C20QDBZR has a low quiescent current of 60µA, making it suitable for battery-powered applications where power consumption is critical.

  9. Question: Can LM4040C20QDBZR withstand high supply voltages?
    - Answer: Yes, LM4040C20QDBZR can withstand supply voltages up to 20V, providing flexibility in various system designs.

  10. Question: Is LM4040C20QDBZR RoHS compliant?
    - Answer: Yes, LM4040C20QDBZR is RoHS compliant, ensuring it meets the environmental standards for hazardous substances.

Please note that these answers are general and may vary depending on specific application requirements and datasheet specifications.