MAX6145ESA+T

Basic Information 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: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 11V
• Output Voltage Options: 1.25V, 2.048V, 2.5V, 3V, 4.096V, 5V
• Initial Accuracy: ±0.05%
• Temperature Coefficient: ±10ppm/°C
• Quiescent Current: 45µA (typical)
• Dropout Voltage: 300mV (typical)

Detailed Pin Configuration

1. VOUT: Output Voltage
2. GND: Ground
3. NC: No Connection
4. IN: Input Voltage
5. NC: No Connection
6. NC: No Connection
7. NC: No Connection
8. VDD: Supply Voltage

Functional Features

• High Precision: The MAX6145ESA+T offers excellent initial accuracy and low temperature coefficient, ensuring a highly precise output voltage.
• Low Dropout Voltage: With a low dropout voltage of only 300mV, this voltage reference can operate efficiently even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: The IC consumes minimal current during operation, resulting in reduced power consumption and longer battery life.

Advantages and Disadvantages

Advantages: - High precision and stability - Wide input voltage range - Low dropout voltage - Low quiescent current

Disadvantages: - Limited output voltage options - Not suitable for high current applications

Working Principles

The MAX6145ESA+T utilizes a bandgap voltage reference circuit to generate a stable and accurate output voltage. It compensates for temperature variations by employing a proportional-to-absolute-temperature (PTAT) current source and a negative temperature coefficient (NTC) resistor. This ensures that the output voltage remains consistent over a wide range of operating temperatures.

Detailed Application Field Plans

1. Precision Instrumentation: The MAX6145ESA+T is ideal for use in precision measurement devices, such as digital multimeters and oscilloscopes, where accurate voltage references are crucial for reliable measurements.
2. Data Acquisition Systems: It can be employed in data acquisition systems to provide a stable reference voltage for analog-to-digital converters (ADCs), ensuring accurate conversion of analog signals.
3. Portable Electronics: Due to its low quiescent current and small package size, this IC is suitable for battery-powered portable devices like smartphones, tablets, and wearable gadgets.

Detailed and Complete Alternative Models

1. LT6654: Offers similar precision and low dropout voltage with additional output voltage options.
2. REF102: Provides higher output current capability while maintaining good accuracy and stability.
3. LM4040: A low-cost alternative with moderate precision and a wide range of output voltage options.

(Note: These alternative models may have different pin configurations and package types. Refer to their respective datasheets for detailed information.)

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