REF43GSZ

Product Overview

Category: Voltage Reference
Use: Provides a stable voltage reference for precision analog circuits
Characteristics: High accuracy, low temperature coefficient, low dropout voltage
Package: SOT-23
Essence: Precision voltage reference
Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Output Voltage: 2.5V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 10ppm/°C
• Dropout Voltage: 200mV
• Supply Voltage Range: 2.7V to 5.5V
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The REF43GSZ is a three-pin device with the following pin configuration:

1. VOUT: Output voltage pin
2. GND: Ground pin
3. VIN: Input voltage pin

Functional Features

• High accuracy: The REF43GSZ provides a precise output voltage of 2.5V with an initial accuracy of ±0.1%.
• Low temperature coefficient: With a temperature coefficient of 10ppm/°C, it maintains stability over a wide temperature range.
• Low dropout voltage: The device has a low dropout voltage of 200mV, ensuring efficient operation even with low input voltages.
• Wide supply voltage range: It can operate within a supply voltage range of 2.7V to 5.5V, making it suitable for various applications.
• Low quiescent current: The REF43GSZ consumes only 60µA of quiescent current, minimizing power consumption.

Advantages and Disadvantages

Advantages: - High accuracy ensures precise voltage references in analog circuits. - Low temperature coefficient maintains stability over a wide temperature range. - Low dropout voltage allows efficient operation with low input voltages. - Wide supply voltage range enables versatile applications. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited output voltage options (only 2.5V). - SOT-23 package may not be suitable for all applications requiring voltage references.

Working Principles

The REF43GSZ is based on bandgap voltage reference technology. It utilizes a combination of bipolar and CMOS transistors to generate a stable voltage reference. The bandgap voltage reference circuit compensates for temperature variations, ensuring accurate output voltage regardless of environmental conditions.

Detailed Application Field Plans

The REF43GSZ is commonly used in precision analog circuits that require a stable voltage reference. Some typical application fields include:

1. Analog-to-Digital Converters (ADCs)
2. Digital-to-Analog Converters (DACs)
3. Voltage regulators
4. Sensor interfaces
5. Precision measurement equipment

Detailed and Complete Alternative Models

1. REF5025AIDGKT: 2.5V Voltage Reference, ±0.05% accuracy, SOT-23 package
2. LT6656BHS6-2.5: 2.5V Voltage Reference, ±0.025% accuracy, SOT-23 package
3. MAX6126AASA25: 2.5V Voltage Reference, ±0.02% accuracy, SOT-23 package
4. LM4040DIM3-2.5: 2.5V Voltage Reference, ±0.1% accuracy, SOT-23 package

These alternative models offer similar functionality and characteristics to the REF43GSZ, providing options for different accuracy requirements and preferences.

In conclusion, the REF43GSZ is a high-precision voltage reference used in various analog circuits. Its accuracy, low temperature coefficient, and wide supply voltage range make it suitable for precision applications. However, its limited output voltage options and package type should be considered when selecting alternatives.