ADR439ARMZ-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: MSOP-8

Essence: The ADR439ARMZ-REEL7 is a high-precision voltage reference IC that provides a stable and accurate voltage output for various applications.

Packaging/Quantity: The ADR439ARMZ-REEL7 is available in tape and reel packaging, with 2500 units per reel.

Specifications

• Output Voltage Range: 1.2V to 5.0V
• Initial Accuracy: ±0.05%
• Temperature Coefficient: 3ppm/°C
• Dropout Voltage: 300mV
• Noise: 4μVp-p
• Operating Temperature Range: -40°C to +125°C
• Supply Voltage Range: 2.7V to 18V
• Quiescent Current: 120μA

Detailed Pin Configuration

The ADR439ARMZ-REEL7 has the following pin configuration:

1. VOUT: Output Voltage
2. GND: Ground
3. NC: No Connection
4. TRIM: Trim Pin for Fine-Tuning Output Voltage
5. VIN: Input Voltage
6. NC: No Connection
7. NC: No Connection
8. NC: No Connection

Functional Features

• High precision voltage reference with excellent initial accuracy
• Low temperature coefficient ensures stability over a wide temperature range
• Low dropout voltage allows operation with low input voltages
• Low noise output for applications requiring minimal interference
• Wide operating temperature range makes it suitable for various environments

Advantages and Disadvantages

Advantages: - High precision and accuracy - Low temperature coefficient ensures stability - Low dropout voltage allows for flexible operation - Low noise output for sensitive applications - Wide operating temperature range for versatile use

Disadvantages: - Limited output voltage range (1.2V to 5.0V) - Requires external trimming for fine-tuning the output voltage

Working Principles

The ADR439ARMZ-REEL7 is based on a bandgap reference circuit that generates a stable voltage reference using a combination of bipolar and CMOS technologies. It utilizes a temperature-compensated design to minimize variations in output voltage over temperature.

The IC operates by comparing the reference voltage with an internal feedback mechanism, adjusting the output voltage accordingly. This feedback loop ensures precise and stable output voltage even under varying conditions.

Detailed Application Field Plans

The ADR439ARMZ-REEL7 is widely used in various applications that require a stable and accurate voltage reference. Some of its common application fields include:

1. Precision Instrumentation: Used as a reference voltage source in high-precision measurement equipment such as digital multimeters, oscilloscopes, and data acquisition systems.
2. Industrial Control Systems: Provides a stable voltage reference for control systems in industrial automation, process control, and robotics applications.
3. Power Management: Used in power supply circuits to provide a stable voltage reference for voltage regulators, DC-DC converters, and battery management systems.
4. Communication Systems: Ensures accurate voltage references in wireless communication devices, base stations, and network equipment.
5. Automotive Electronics: Used in automotive applications such as engine control units, electronic stability control systems, and advanced driver-assistance systems (ADAS).

Detailed and Complete Alternative Models

1. ADR431ARMZ-REEL7: Similar to ADR439ARMZ-REEL7, but with a lower initial accuracy of ±0.1%.
2. ADR443ARMZ-REEL7: Similar to ADR439ARMZ-REEL7, but with a higher initial accuracy of ±0.02%.
3. ADR435ARMZ-REEL7: Similar to ADR439ARMZ-REEL7, but with a lower temperature coefficient of 1ppm/°C.

These alternative models provide options with varying specifications to suit different application requirements.

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