AD581SH/883B

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: High precision, low temperature coefficient, military-grade
• Package: Hermetic Metal Can
• Essence: Precision voltage reference for critical applications
• Packaging/Quantity: Available in tubes, 25 units per tube

Specifications

• Voltage Output: 2.5V
• Temperature Coefficient: ±10ppm/°C
• Operating Temperature Range: -55°C to +125°C
• Supply Voltage: 4.5V to 36V
• Output Current: 10mA
• Line Regulation: 0.1mV/V
• Load Regulation: 0.1mV/mA
• Initial Accuracy: ±0.1%
• Long-Term Stability: ±50ppm/year

Pin Configuration

The AD581SH/883B has a total of three pins:

1. VOUT: Voltage Output
2. VIN: Supply Voltage Input
3. GND: Ground

Functional Features

• High precision and stability over a wide temperature range
• Low temperature coefficient ensures minimal output voltage drift
• Military-grade construction for ruggedness and reliability
• Excellent line and load regulation for consistent performance
• Wide supply voltage range allows flexibility in various applications

Advantages

• Provides a highly accurate and stable voltage reference
• Suitable for critical applications that require precise voltage references
• Robust construction ensures reliable operation in harsh environments
• Wide operating temperature range enables usage in extreme conditions
• Excellent line and load regulation guarantees consistent performance

Disadvantages

• Relatively higher cost compared to standard voltage references
• Limited availability due to its military-grade designation
• Requires careful handling and storage due to its hermetic metal can package

Working Principles

The AD581SH/883B is based on a bandgap voltage reference circuit. It utilizes the temperature-dependent voltage across a forward-biased base-emitter junction of a transistor to generate a stable reference voltage. This voltage is then amplified and buffered to provide a precise output voltage.

Detailed Application Field Plans

The AD581SH/883B is commonly used in applications that demand high precision and stability, such as:

1. Precision analog-to-digital converters (ADCs)
2. Digital-to-analog converters (DACs)
3. Voltage regulators
4. Calibration equipment
5. Test and measurement instruments
6. Aerospace and defense systems

Alternative Models

• AD581JH: Plastic DIP package, commercial-grade
• AD581KH: Ceramic DIP package, industrial-grade
• AD581LH: Hermetic Metal Can package, military-grade
• AD581TH: TO-99 package, commercial-grade

These alternative models offer similar performance characteristics but differ in package type and grade designation.

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