MAX155AEWI

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: High precision, low dropout voltage, low temperature coefficient
• Package: 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

• Voltage Output: 2.5V
• Initial Accuracy: ±0.02%
• Temperature Coefficient: 10ppm/°C
• Dropout Voltage: 300mV
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 4.5V to 12V
• Quiescent Current: 80µA

Pin Configuration

The MAX155AEWI has the following pin configuration:

1. VOUT: Voltage Output
2. GND: Ground
3. TRIM: Trim Input
4. BYP: Bypass Capacitor Connection
5. IN: Supply Voltage Input

Functional Features

• High precision voltage reference with low temperature coefficient
• Low dropout voltage allows for efficient operation even with low supply voltages
• Trim input for fine-tuning the output voltage
• Bypass capacitor connection for improved noise performance

Advantages

• Excellent initial accuracy ensures precise voltage references
• Low temperature coefficient minimizes output voltage variations with temperature changes
• Low dropout voltage enables operation in low voltage systems
• Trim input allows for customization and calibration
• Bypass capacitor connection enhances noise immunity

Disadvantages

• Limited voltage output options (only 2.5V)
• Relatively high quiescent current compared to some alternatives

Working Principles

The MAX155AEWI is based on a bandgap voltage reference circuit. It utilizes a combination of bipolar and CMOS technologies to achieve high precision and low temperature coefficient characteristics. The internal circuitry compensates for temperature variations, ensuring a stable output voltage over a wide temperature range.

Application Field Plans

The MAX155AEWI is widely used in various electronic systems that require accurate and stable voltage references. Some common application fields include:

1. Analog-to-Digital Converters (ADCs)
2. Digital-to-Analog Converters (DACs)
3. Voltage regulators
4. Precision measurement instruments
5. Sensor calibration circuits

Alternative Models

If the MAX155AEWI does not meet specific requirements, alternative models with similar functionality are available. Some popular alternatives include:

1. LT6654: Low drift, precision voltage reference
2. REF5025: High-accuracy, low-noise voltage reference
3. LM4040: Micropower, precision shunt voltage reference

These alternative models offer different voltage outputs, temperature coefficients, and package options, allowing users to select the most suitable option for their specific applications.

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