ADR291GRUZ-REEL7

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

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

Package: SOT-23-6

Essence: The ADR291GRUZ-REEL7 is a voltage reference IC that provides a stable and accurate voltage output for various electronic applications.

Packaging/Quantity: The ADR291GRUZ-REEL7 is typically sold in reels containing 2500 units.

Specifications

• Output Voltage Range: 1.2V to 5.0V
• Initial Accuracy: ±0.05%
• Temperature Coefficient: 10ppm/°C
• Dropout Voltage: 300mV (typical)
• Supply Voltage Range: 2.7V to 18V
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The ADR291GRUZ-REEL7 has six pins arranged as follows:

```

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| | --| VOUT |-- Pin 1 --| GND |-- Pin 2 --| NC |-- Pin 3 --| VIN |-- Pin 4 --| NC |-- Pin 5 --| TRIM |-- Pin 6 |_______| ```

Functional Features

• High accuracy and stability over a wide temperature range
• Low dropout voltage allows for efficient power management
• Low noise output ensures clean and reliable voltage reference
• Trim pin for fine-tuning the output voltage

Advantages and Disadvantages

Advantages: - High precision and low temperature coefficient ensure accurate voltage reference - Wide operating temperature range makes it suitable for various environments - Low dropout voltage minimizes power dissipation - Small package size (SOT-23-6) allows for space-saving designs

Disadvantages: - Limited output voltage range (1.2V to 5.0V) - Not suitable for high current applications

Working Principles

The ADR291GRUZ-REEL7 utilizes a bandgap reference circuit to generate a stable voltage output. It compensates for temperature variations by employing a proportional-to-absolute-temperature (PTAT) current source and a negative temperature coefficient (NTC) resistor. This design ensures that the output voltage remains constant over a wide temperature range.

Detailed Application Field Plans

The ADR291GRUZ-REEL7 is commonly used in the following applications:

1. Precision analog-to-digital converters (ADCs)
2. Data acquisition systems
3. Battery-powered devices
4. Portable medical equipment
5. Industrial control systems
6. Instrumentation and measurement equipment

Detailed and Complete Alternative Models

1. ADR292GRUZ-REEL7: Similar to ADR291GRUZ-REEL7, but with an extended output voltage range of 1.8V to 5.5V.
2. ADR293GRUZ-REEL7: Higher precision version with an initial accuracy of ±0.02%.
3. ADR294GRUZ-REEL7: Ultra-low noise variant designed for sensitive applications.

These alternative models offer similar functionality and characteristics, providing options for different voltage requirements and performance levels.

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