REF191ES-REEL

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - High precision - Low temperature coefficient - Low dropout voltage - Low quiescent current

Package: SOT-23-3

Essence: The REF191ES-REEL is a voltage reference IC that provides a stable and accurate voltage output.

Packaging/Quantity: The REF191ES-REEL is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Output Voltage: 1.25V
• Initial Accuracy: ±0.2%
• Temperature Coefficient: 10ppm/°C
• Dropout Voltage: 100mV
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The REF191ES-REEL has three pins:

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

Functional Features

• High precision voltage reference for various applications.
• Stable output voltage over a wide temperature range.
• Low dropout voltage allows operation with low input voltages.
• Low quiescent current minimizes power consumption.

Advantages and Disadvantages

Advantages: - High accuracy and stability. - Low temperature coefficient ensures reliable performance. - Small package size enables space-saving designs. - Low power consumption extends battery life.

Disadvantages: - Limited output voltage options. - Not suitable for high current applications.

Working Principles

The REF191ES-REEL utilizes bandgap voltage reference technology to generate a precise and stable output voltage. It compensates for temperature variations by employing a temperature-dependent current source and a voltage divider network. This ensures that the output voltage remains constant over a wide temperature range.

Detailed Application Field Plans

The REF191ES-REEL is commonly used in the following applications:

1. Precision analog-to-digital converters (ADCs)
2. Voltage regulators
3. Data acquisition systems
4. Battery-powered devices
5. Test and measurement equipment

Detailed and Complete Alternative Models

1. REF192ES-REEL: Similar to REF191ES-REEL, but with an output voltage of 2.5V.
2. REF193ES-REEL: Similar to REF191ES-REEL, but with an output voltage of 3.3V.
3. REF194ES-REEL: Similar to REF191ES-REEL, but with an output voltage of 5V.

These alternative models provide different output voltage options while maintaining similar characteristics and package types.

In conclusion, the REF191ES-REEL is a high-precision voltage reference IC that offers stable and accurate voltage output. Its small package size, low power consumption, and excellent temperature stability make it suitable for various applications in the electronics industry.