AD780CR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: High precision, low temperature coefficient, low dropout voltage
• Package: Ceramic Dual-In-Line (DIP)
• Essence: Provides a stable and accurate voltage reference for electronic circuits
• Packaging/Quantity: Available in tubes of 25 units

Specifications

• Output Voltage: 2.5V
• Temperature Coefficient: ±10ppm/°C
• Dropout Voltage: 1.2V
• Supply Voltage Range: 4V to 36V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AD780CR has eight pins arranged as follows:

```

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| | --| VOUT | --| GND | --| TRIM | --| NC | --| VIN | --| NC | --| NC | |___________| ```

Functional Features

• High Precision: The AD780CR provides a highly accurate output voltage of 2.5V.
• Low Temperature Coefficient: With a temperature coefficient of ±10ppm/°C, the AD780CR maintains stability over a wide temperature range.
• Low Dropout Voltage: The low dropout voltage of 1.2V ensures efficient operation even with low input voltages.
• Wide Supply Voltage Range: The AD780CR can operate within a supply voltage range of 4V to 36V, making it suitable for various applications.

Advantages and Disadvantages

Advantages: - High precision and stability - Low temperature coefficient - Wide supply voltage range - Low dropout voltage

Disadvantages: - Limited output voltage options - Requires external trimming for precise calibration

Working Principles

The AD780CR is based on a bandgap voltage reference circuit. It utilizes the temperature-dependent characteristics of semiconductor materials to generate a stable and accurate output voltage. The internal circuitry compensates for temperature variations, ensuring consistent performance across different operating conditions.

Detailed Application Field Plans

The AD780CR is commonly used in various electronic systems that require a stable voltage reference. Some typical application fields include:

1. Analog-to-Digital Converters (ADCs): The AD780CR provides a precise reference voltage for ADCs, ensuring accurate conversion of analog signals.
2. Voltage Regulators: It can be used as a reference voltage for voltage regulators, maintaining a stable output voltage regardless of input variations.
3. Precision Instrumentation: The high precision and low temperature coefficient make the AD780CR suitable for precision measurement equipment, such as multimeters and oscilloscopes.
4. Sensor Calibration: It can be employed in sensor calibration circuits to provide a reliable and consistent reference voltage for accurate sensor readings.

Detailed and Complete Alternative Models

• LM4040: A series of precision voltage references with various output voltage options.
• REF5025: High-precision voltage reference with low dropout voltage and low temperature coefficient.
• MAX619: Ultra-low-power voltage reference with wide supply voltage range and low dropout voltage.

These alternative models offer similar functionality and can be considered as alternatives to the AD780CR based on specific requirements and application needs.

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