MAX851ISA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: High precision, low dropout voltage, low quiescent current
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Provides a stable and accurate voltage reference for various electronic applications
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Output Voltage Range: 1.25V to 5V
• Initial Accuracy: ±0.2%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 300mV at 20mA
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX851ISA has the following pin configuration:

```

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| | --| VOUT GND|-- Pin 1: Ground --| VIN NC |-- Pin 2: No Connection --| NC NC |-- Pin 3: No Connection --| NC SHDN|-- Pin 4: Shutdown Control --| NC NC |-- Pin 5: No Connection --| NC NC |-- Pin 6: No Connection --| NC NC |-- Pin 7: No Connection --| NC VREF|-- Pin 8: Voltage Reference Output |___________| ```

Functional Features

• High Precision: The MAX851ISA provides an initial accuracy of ±0.2%, ensuring precise voltage references.
• Low Dropout Voltage: With a dropout voltage of only 300mV at 20mA, it minimizes power dissipation and is suitable for low-power applications.
• Low Quiescent Current: The IC operates with a low quiescent current of 60µA, reducing power consumption.
• Shutdown Control: The SHDN pin allows for easy on/off control of the voltage reference.

Advantages and Disadvantages

Advantages: - High precision ensures accurate voltage references. - Low dropout voltage minimizes power dissipation. - Low quiescent current reduces power consumption. - Shutdown control feature provides convenience in operation.

Disadvantages: - Limited output voltage range (1.25V to 5V). - Temperature coefficient may affect accuracy in extreme temperature conditions.

Working Principles

The MAX851ISA is based on a bandgap reference circuit that generates a stable voltage reference regardless of variations in supply voltage and temperature. It utilizes a combination of bipolar and CMOS technologies to achieve high precision and low power consumption.

Detailed Application Field Plans

The MAX851ISA is widely used in various electronic applications, including but not limited to: - Precision analog-to-digital converters (ADCs) - Digital-to-analog converters (DACs) - Voltage regulators - Battery-powered devices - Portable instrumentation - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the MAX851ISA include: - LT1236 by Linear Technology - REF102 by Texas Instruments - LM4040 by National Semiconductor - ADR431 by Analog Devices - MCP1501 by Microchip Technology

These alternative models offer similar functionality and can be considered as substitutes depending on specific requirements.

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