Texas Instruments
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REF1004I-1.2
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REF1004I-1.2

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Provides a stable and accurate voltage reference - Operates at a fixed output voltage of 1.2V - Suitable for various electronic applications requiring precise voltage references

Package: Small Outline Transistor (SOT-23)

Essence: REF1004I-1.2 is a voltage reference IC that generates a stable and reliable 1.2V output voltage.

Packaging/Quantity: The REF1004I-1.2 is available in a SOT-23 package, with each package containing one IC.

Specifications

  • Output Voltage: 1.2V
  • Temperature Coefficient: ±50 ppm/°C
  • Supply Voltage Range: 2.7V to 5.5V
  • Quiescent Current: 60 µA (typical)
  • Line Regulation: 0.02% (typical)
  • Load Regulation: 0.05% (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The REF1004I-1.2 IC has three pins:

  1. VOUT: Output pin, provides the stable 1.2V reference voltage.
  2. GND: Ground pin, connected to the common ground of the circuit.
  3. VIN: Input pin, receives the supply voltage for the IC.

Functional Features

  • High accuracy and stability: The REF1004I-1.2 provides a precise and stable 1.2V output voltage, ensuring reliable performance in various applications.
  • Low quiescent current: With a typical quiescent current of only 60 µA, the IC minimizes power consumption, making it suitable for battery-powered devices.
  • Wide supply voltage range: The IC can operate within a supply voltage range of 2.7V to 5.5V, allowing flexibility in different electronic systems.
  • Low temperature coefficient: The REF1004I-1.2 exhibits a low temperature coefficient of ±50 ppm/°C, ensuring minimal output voltage variation with temperature changes.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Low quiescent current - Wide supply voltage range - Low temperature coefficient

Disadvantages: - Fixed output voltage may limit certain applications requiring different reference voltages

Working Principles

The REF1004I-1.2 utilizes bandgap voltage reference technology to generate a stable 1.2V output voltage. It employs a combination of resistors, diodes, and amplifiers to achieve accurate voltage regulation. The internal circuitry compensates for temperature variations, ensuring consistent performance over a wide temperature range.

Detailed Application Field Plans

The REF1004I-1.2 is widely used in various electronic applications that require a precise and stable 1.2V voltage reference. Some common application fields include:

  1. Analog-to-Digital Converters (ADCs)
  2. Digital-to-Analog Converters (DACs)
  3. Voltage regulators
  4. Battery management systems
  5. Precision instrumentation
  6. Sensor circuits

Detailed and Complete Alternative Models

  1. REF102AP: Provides a fixed 1.024V output voltage with similar specifications.
  2. REF103BP: Offers a fixed 2.048V output voltage with comparable characteristics.
  3. REF104CP: Generates a fixed 4.096V output voltage, suitable for specific applications.

These alternative models offer different fixed output voltages while maintaining similar features and performance to the REF1004I-1.2.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق REF1004I-1.2 في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of REF1004I-1.2 in technical solutions:

Q1: What is REF1004I-1.2? A1: REF1004I-1.2 is a voltage reference integrated circuit (IC) that provides a stable and accurate output voltage of 1.2 volts.

Q2: What is the typical application of REF1004I-1.2? A2: REF1004I-1.2 is commonly used as a precision voltage reference in various electronic systems, such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and power management circuits.

Q3: What is the voltage accuracy of REF1004I-1.2? A3: REF1004I-1.2 has a typical voltage accuracy of ±0.2% over the specified temperature range.

Q4: What is the operating temperature range for REF1004I-1.2? A4: REF1004I-1.2 can operate within a temperature range of -40°C to +125°C.

Q5: How much current does REF1004I-1.2 consume? A5: REF1004I-1.2 has a low quiescent current consumption of typically 60 microamps.

Q6: Can REF1004I-1.2 be used in battery-powered applications? A6: Yes, REF1004I-1.2's low quiescent current makes it suitable for battery-powered applications where power efficiency is crucial.

Q7: Does REF1004I-1.2 require external components for operation? A7: Yes, REF1004I-1.2 requires an external bypass capacitor for stability and noise reduction. The datasheet provides guidelines for selecting the appropriate capacitor.

Q8: Can REF1004I-1.2 tolerate high input voltages? A8: Yes, REF1004I-1.2 can handle input voltages up to 16 volts without any damage.

Q9: Is REF1004I-1.2 available in different package options? A9: Yes, REF1004I-1.2 is available in various package options, such as SOT-23 and SOIC, providing flexibility for different PCB layouts.

Q10: Are there any application notes or reference designs available for REF1004I-1.2? A10: Yes, the manufacturer provides application notes and reference designs that offer guidance on using REF1004I-1.2 in specific circuit configurations and applications.

Please note that these answers are general and may vary depending on the specific requirements and datasheet of REF1004I-1.2.