ADR4550BRZ

Product Overview

Category: Voltage Reference
Use: Precision voltage reference for various applications
Characteristics: High accuracy, low temperature coefficient, low dropout voltage
Package: TO-252 (DPAK)
Essence: Provides a stable and precise voltage reference for electronic circuits
Packaging/Quantity: Tape and reel packaging, 250 units per reel

Specifications

• Output Voltage: 5.0V
• Initial Accuracy: ±0.05%
• Temperature Coefficient: 10ppm/°C
• Dropout Voltage: 300mV
• Quiescent Current: 1.5mA
• Line Regulation: 0.02%/V
• Load Regulation: 0.04%/mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The ADR4550BRZ has three pins in the TO-252 package:

1. VOUT: Output Voltage
2. GND: Ground
3. VIN: Input Voltage

Functional Features

• High accuracy and stability over a wide temperature range
• Low dropout voltage enables operation with low input voltages
• Excellent line and load regulation for consistent performance
• Low quiescent current for power-sensitive applications
• Short-circuit and thermal protection for enhanced reliability

Advantages and Disadvantages

Advantages: - High precision and accuracy - Low temperature coefficient ensures stability - Wide operating temperature range - Robust short-circuit and thermal protection

Disadvantages: - Relatively high dropout voltage compared to some alternatives - Limited output current capability

Working Principles

The ADR4550BRZ is based on bandgap voltage reference technology. It utilizes a combination of bipolar and CMOS transistors to generate a stable reference voltage. The bandgap voltage reference compensates for temperature variations, ensuring accurate output voltage even in extreme operating conditions.

Detailed Application Field Plans

The ADR4550BRZ is widely used in various applications requiring precise and stable voltage references. Some common 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-powered devices

Detailed Alternative Models

1. LM4040: Low dropout voltage reference with similar accuracy and temperature coefficient.
2. LT6654: Ultra-precision voltage reference with lower temperature coefficient and higher initial accuracy.
3. REF5050: High-accuracy voltage reference with low dropout voltage and excellent line/load regulation.

These alternative models offer different trade-offs in terms of performance, cost, and package options, allowing designers to choose the most suitable option for their specific requirements.

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