REF3040TB-GT3

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - High precision voltage reference - Low temperature coefficient - Wide operating temperature range - Low power consumption

Package: TO-252-3 (DPAK)

Essence: The REF3040TB-GT3 is a voltage reference IC that provides a stable and accurate voltage output for various electronic applications.

Packaging/Quantity: The REF3040TB-GT3 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Output Voltage: 4.096V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 10ppm/°C
• Operating Temperature Range: -40°C to +125°C
• Supply Voltage Range: 2.7V to 5.5V
• Quiescent Current: 60µA

Pin Configuration

The REF3040TB-GT3 has three pins arranged as follows:

```

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| | --| VOUT |-- --| GND |-- --| VIN |-- |_______| ```

Pin Description: - VOUT: Output Voltage - GND: Ground - VIN: Input Voltage

Functional Features

• High Precision: The REF3040TB-GT3 offers a high initial accuracy of ±0.1%, ensuring precise voltage references.
• Low Temperature Coefficient: With a temperature coefficient of 10ppm/°C, the voltage output remains stable across a wide temperature range.
• Wide Operating Temperature Range: The IC can operate reliably in temperatures ranging from -40°C to +125°C.
• Low Power Consumption: The quiescent current of 60µA minimizes power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - High precision and stability - Wide operating temperature range - Low power consumption - Compact package size

Disadvantages: - Limited output voltage options - Relatively higher cost compared to some alternatives

Working Principles

The REF3040TB-GT3 utilizes a bandgap voltage reference circuit to generate a stable output voltage. 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 accurate voltage references across different operating conditions.

Detailed Application Field Plans

The REF3040TB-GT3 is commonly used in various electronic systems that require precise voltage references. Some typical application fields include:

1. Analog-to-Digital Converters (ADCs): The IC provides a stable voltage reference for accurate conversion of analog signals into digital data.
2. Power Management Systems: It is utilized in voltage regulators and power supplies to maintain a consistent output voltage.
3. Sensor Interfaces: The REF3040TB-GT3 ensures accurate voltage references for sensor calibration and signal conditioning.
4. Data Acquisition Systems: It is employed in data acquisition modules to provide reliable voltage references for accurate measurements.

Detailed and Complete Alternative Models

1. REF3030TB-GT3: Similar to the REF3040TB-GT3, but with an output voltage of 3.0V.
2. REF3050TB-GT3: Similar to the REF3040TB-GT3, but with an output voltage of 5.0V.
3. LT6656BHS6-4.096#PBF: An alternative from Linear Technology with a 4.096V output voltage and similar specifications.

These alternative models offer similar functionality and can be considered as substitutes for the REF3040TB-GT3 in various applications.

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