ADR431ARZ

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - High accuracy - Low temperature coefficient - Low dropout voltage - Low noise - Wide operating range

Package: SOIC (Small Outline Integrated Circuit)

Essence: ADR431ARZ is a precision voltage reference IC that provides a stable and accurate output voltage.

Packaging/Quantity: The ADR431ARZ is available in a standard SOIC package. Each package contains one IC.

Specifications

• Output Voltage Range: 1.24V to 5.0V
• Initial Accuracy: ±0.05%
• Temperature Coefficient: 10ppm/°C
• Dropout Voltage: 300mV
• Supply Voltage Range: 2.7V to 18V
• Quiescent Current: 120µA

Detailed Pin Configuration

The ADR431ARZ has the following pin configuration:

1. VOUT: Output Voltage
2. GND: Ground
3. VIN: Input Voltage
4. NC: No Connection

Functional Features

• High precision and stability: The ADR431ARZ offers excellent initial accuracy and low temperature coefficient, ensuring a stable and precise output voltage.
• Low dropout voltage: With a dropout voltage of only 300mV, the IC can operate efficiently even when the input voltage is close to the desired output voltage.
• Low noise: The ADR431ARZ minimizes output voltage fluctuations caused by external disturbances, making it suitable for sensitive applications.
• Wide operating range: It can operate within a wide supply voltage range of 2.7V to 18V, providing flexibility in various electronic systems.

Advantages and Disadvantages

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

Disadvantages: - Limited output voltage range (1.24V to 5.0V) - Higher quiescent current compared to some other voltage references

Working Principles

The ADR431ARZ is based on bandgap reference technology. It utilizes a combination of bipolar and CMOS transistors to generate a stable reference voltage. The internal circuitry compensates for temperature variations, ensuring accurate output voltage across a wide temperature range.

Detailed Application Field Plans

The ADR431ARZ is commonly used in various applications that require precise and stable voltage references. Some typical application fields include:

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

Detailed and Complete Alternative Models

1. ADR431BRZ: Similar to ADR431ARZ but with a different package (SOT-23).
2. ADR432ARZ: Higher output voltage range (1.24V to 10.0V) with similar characteristics.
3. ADR433ARZ: Lower initial accuracy (±0.1%) but wider temperature coefficient range (-40ppm/°C to +125ppm/°C).

These alternative models provide options based on specific requirements and preferences.

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