MAX6138BEXR21+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: High precision, low dropout voltage, low noise
• Package: SOT23-3
• Essence: Provides a stable and accurate voltage reference for various electronic applications
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Output Voltage: 2.1V
• Initial Accuracy: ±0.2%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 200mV at 10mA
• Quiescent Current: 45µA
• Noise: 30µVrms (10Hz to 100kHz)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6138BEXR21+T has three pins in the SOT23-3 package:

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

Functional Features

• High Precision: The MAX6138BEXR21+T offers an initial accuracy of ±0.2%, ensuring precise voltage references.
• Low Dropout Voltage: With a dropout voltage of only 200mV at 10mA, it minimizes power loss and is suitable for low-power applications.
• Low Noise: The device exhibits low noise levels of 30µVrms from 10Hz to 100kHz, making it ideal for sensitive analog circuits.

Advantages and Disadvantages

Advantages: - High precision ensures accurate voltage references. - Low dropout voltage reduces power dissipation. - Low noise level maintains signal integrity.

Disadvantages: - Limited output voltage options. - Relatively high quiescent current compared to some alternatives.

Working Principles

The MAX6138BEXR21+T is a bandgap voltage reference IC. It utilizes the temperature-dependent characteristics of bipolar junction transistors to generate a stable and accurate reference voltage. The internal circuitry compensates for temperature variations, ensuring consistent performance over a wide temperature range.

Detailed Application Field Plans

The MAX6138BEXR21+T finds applications in various electronic systems that require precise voltage references. Some common application fields include:

1. Analog-to-Digital Converters (ADCs)
2. Digital-to-Analog Converters (DACs)
3. Voltage regulators
4. Sensor interfaces
5. Battery-powered devices

Detailed and Complete Alternative Models

1. MAX6126AASA25+: 2.5V precision voltage reference with low dropout voltage.
2. LT1236ACS8-2.5: 2.5V micropower shunt voltage reference with high accuracy.
3. REF5025AIDGKT: 2.5V precision voltage reference with low noise and low dropout voltage.

These alternative models offer similar functionality and can be considered based on specific requirements and design constraints.

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