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LM4040C82IDBZT

LM4040C82IDBZT

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Reference
  • Characteristics: Precision, Low Dropout, Low Noise
  • Package: SOT-23-3
  • Essence: LM4040C82IDBZT is a precision voltage reference IC that provides a stable and accurate output voltage.
  • Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

  • Output Voltage: 8.2V
  • Initial Accuracy: ±0.1%
  • Temperature Coefficient: 50ppm/°C
  • Dropout Voltage: 60mV
  • Quiescent Current: 60µA
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

LM4040C82IDBZT has three pins arranged as follows:

```

| | --| VOUT |-- --| GND |-- --| VIN |-- |_______| ```

  • VOUT: Output Voltage Pin
  • GND: Ground Pin
  • VIN: Input Voltage Pin

Functional Features

  • High Precision: The LM4040C82IDBZT offers excellent initial accuracy of ±0.1% and low temperature coefficient of 50ppm/°C, ensuring precise voltage references.
  • Low Dropout: With a dropout voltage of only 60mV, this IC can operate efficiently even when the input voltage is close to the desired output voltage.
  • Low Noise: The LM4040C82IDBZT provides a stable and noise-free output voltage, making it suitable for applications requiring minimal interference.

Advantages and Disadvantages

Advantages: - High precision and stability - Low dropout voltage - Low noise output - Wide operating temperature range

Disadvantages: - Limited output voltage options - SOT-23-3 package may not be suitable for all applications

Working Principles

LM4040C82IDBZT utilizes a bandgap reference circuit to generate a stable and accurate output voltage. It compensates for temperature variations by using a proportional-to-absolute-temperature (PTAT) current source and a negative temperature coefficient (NTC) resistor. This ensures that the output voltage remains constant over a wide temperature range.

Detailed Application Field Plans

The LM4040C82IDBZT is commonly used in various applications, including:

  1. Precision Instrumentation: It can be employed as a voltage reference in precision measurement devices such as multimeters and oscilloscopes.
  2. Analog-to-Digital Converters (ADCs): The IC provides a stable reference voltage for ADCs, ensuring accurate conversion of analog signals.
  3. Power Supply Regulation: It can be utilized in power supply circuits to maintain a stable voltage level for sensitive components.
  4. Sensor Calibration: LM4040C82IDBZT is suitable for calibrating sensors that require precise and stable reference voltages.

Detailed and Complete Alternative Models

  1. LM4040AIM3-8.2/NOPB: Similar to LM4040C82IDBZT, this model offers an 8.2V output voltage with comparable specifications. It comes in a SOT-23-3 package.
  2. LT1461AIS8-8#PBF: This alternative model provides an 8.2V output voltage with higher initial accuracy and lower temperature coefficient. It is available in an SOIC-8 package.

These alternative models can be considered based on specific requirements and compatibility with the application.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LM4040C82IDBZT v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LM4040C82IDBZT in technical solutions:

  1. Q: What is LM4040C82IDBZT? A: LM4040C82IDBZT is a precision voltage reference IC that provides a stable and accurate voltage output of 8.2V.

  2. Q: What is the typical application of LM4040C82IDBZT? A: LM4040C82IDBZT is commonly used as a voltage reference in various technical solutions, such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and power management circuits.

  3. Q: What is the voltage accuracy of LM4040C82IDBZT? A: The voltage accuracy of LM4040C82IDBZT is typically within ±0.1% of the nominal output voltage.

  4. Q: What is the temperature coefficient of LM4040C82IDBZT? A: The temperature coefficient of LM4040C82IDBZT is typically 100 ppm/°C, which means the output voltage changes by 100 parts per million for every degree Celsius change in temperature.

  5. Q: Can LM4040C82IDBZT operate from a single power supply? A: Yes, LM4040C82IDBZT can operate from a single power supply ranging from 2.7V to 12V.

  6. Q: Is LM4040C82IDBZT suitable for low-power applications? A: Yes, LM4040C82IDBZT has a low quiescent current consumption of typically 60 µA, making it suitable for low-power applications.

  7. Q: Can LM4040C82IDBZT handle high load currents? A: No, LM4040C82IDBZT is designed for low load currents and is typically used as a voltage reference rather than a current source.

  8. Q: Does LM4040C82IDBZT require external components for operation? A: No, LM4040C82IDBZT is a standalone voltage reference that does not require any external components for basic operation.

  9. Q: Is LM4040C82IDBZT available in different package options? A: Yes, LM4040C82IDBZT is available in various package options, such as SOT-23 and TO-92, providing flexibility for different application requirements.

  10. Q: What is the long-term stability of LM4040C82IDBZT? A: LM4040C82IDBZT has excellent long-term stability, with a typical drift rate of 20 ppm/year, ensuring reliable and accurate voltage references over extended periods.

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