REF102CU

Product Overview

Category: Voltage Reference
Use: Provides a stable voltage reference for precision analog circuits
Characteristics: High accuracy, low temperature coefficient, low noise
Package: TO-99 metal can
Essence: Precision voltage reference
Packaging/Quantity: Single unit per package

Specifications

• Output Voltage: 5V
• Initial Accuracy: ±0.05%
• Temperature Coefficient: 10ppm/°C
• Output Current: 10mA
• Supply Voltage Range: 7V to 40V
• Quiescent Current: 1.2mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The REF102CU has a total of 8 pins:

1. VOUT: Output voltage pin
2. GND: Ground reference pin
3. TRIM: Trim pin for adjusting the output voltage
4. NC: No connection pin
5. V+: Positive supply voltage pin
6. V-: Negative supply voltage pin
7. NC: No connection pin
8. NC: No connection pin

Functional Features

• High accuracy and stability over a wide temperature range
• Low temperature coefficient ensures minimal voltage drift with temperature changes
• Low output noise for precise analog circuit applications
• Trim pin allows fine adjustment of the output voltage

Advantages

• Excellent initial accuracy ensures reliable voltage reference
• Low temperature coefficient minimizes voltage variations with temperature changes
• Low output noise enables accurate measurements in sensitive applications
• Wide supply voltage range allows flexibility in various circuit designs

Disadvantages

• Relatively high quiescent current compared to some other voltage references
• Limited output current may not be suitable for high-power applications

Working Principles

The REF102CU is based on a bandgap voltage reference circuit. It utilizes the temperature-dependent voltage characteristics of a diode-connected bipolar transistor and a resistor to generate a stable reference voltage. This voltage is then buffered and amplified to provide a precise output voltage.

Detailed Application Field Plans

The REF102CU is commonly used in applications that require a stable and accurate voltage reference. Some typical application fields include:

1. Precision analog-to-digital converters (ADCs)
2. Digital-to-analog converters (DACs)
3. Voltage regulators
4. Instrumentation and measurement equipment
5. Data acquisition systems
6. Industrial control systems

Detailed and Complete Alternative Models

• REF102C: Similar specifications, but available in a ceramic DIP package
• REF102CP: Similar specifications, but available in a plastic DIP package
• REF102AP: Higher accuracy version with ±0.02% initial accuracy
• REF102BP: Lower cost version with ±0.1% initial accuracy

(Note: The above alternative models are for illustrative purposes only and may not represent all available options.)

In conclusion, the REF102CU is a precision voltage reference belonging to the category of voltage references. It provides a stable and accurate reference voltage for various analog circuits. With its high accuracy, low temperature coefficient, and low noise characteristics, it is widely used in precision measurement and control applications.