LM385M-1.2

Product Overview

Category

LM385M-1.2 belongs to the category of voltage references.

Use

It is commonly used as a precision voltage reference in various electronic circuits.

Characteristics

• LM385M-1.2 provides a stable and accurate output voltage of 1.2 volts.
• It has low temperature coefficient, ensuring consistent performance across different operating conditions.
• The device operates with low power consumption, making it suitable for battery-powered applications.
• LM385M-1.2 offers excellent line and load regulation, maintaining a steady output voltage even under varying loads.

Package

The LM385M-1.2 is available in a small surface-mount package, allowing for easy integration into compact circuit designs.

Essence

The essence of LM385M-1.2 lies in its ability to provide a precise and reliable voltage reference, ensuring the accuracy and stability of other components within an electronic system.

Packaging/Quantity

The LM385M-1.2 is typically packaged in reels or tubes, with quantities varying based on the manufacturer's specifications.

Specifications

• Output Voltage: 1.2 volts
• Temperature Coefficient: ±50 ppm/°C
• Supply Voltage Range: 1.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Initial Accuracy: ±0.5%
• Quiescent Current: 120 µA (typical)

Detailed Pin Configuration

The LM385M-1.2 features three pins:

1. Vout: Output pin providing a stable 1.2V reference voltage.
2. GND: Ground connection for the device.
3. Vin: Input pin connected to the supply voltage.

Functional Features

• LM385M-1.2 ensures a precise and constant output voltage, serving as a reliable reference for other components in the circuit.
• It exhibits low temperature coefficient, maintaining accuracy across varying temperatures.
• The device operates with low power consumption, making it suitable for energy-efficient applications.
• LM385M-1.2 offers excellent line and load regulation, ensuring stable performance under different operating conditions.

Advantages and Disadvantages

Advantages

• Provides a stable and accurate voltage reference.
• Low temperature coefficient ensures consistent performance.
• Low power consumption makes it suitable for battery-powered applications.
• Excellent line and load regulation for stable operation.

Disadvantages

• Limited output voltage options (fixed at 1.2 volts).
• May require additional circuitry for specific applications requiring different reference voltages.

Working Principles

LM385M-1.2 utilizes bandgap voltage reference technology to generate a precise and stable output voltage. It employs a combination of temperature-dependent and temperature-independent voltage sources to compensate for temperature variations and achieve accurate voltage references.

Detailed Application Field Plans

The LM385M-1.2 finds application in various electronic systems where a stable and accurate voltage reference is required. Some common application fields include:

1. Analog-to-Digital Converters (ADCs): LM385M-1.2 provides a reliable reference voltage for ADCs, ensuring accurate conversion of analog signals.
2. Voltage Regulators: It serves as a reference for voltage regulators, maintaining a stable output voltage regardless of input variations.
3. Sensor Circuits: LM385M-1.2 is used in sensor circuits to provide a precise reference voltage for accurate measurements.
4. Battery Management Systems: It assists in monitoring and controlling battery charging and discharging processes by providing a stable voltage reference.

Detailed and Complete Alternative Models

1. LM4040: A series of precision voltage references available in various output voltages.
2. LT1236: Precision shunt voltage reference with low temperature drift and high accuracy.
3. REF5025: High-precision voltage reference with low noise and excellent long-term stability.

These alternative models offer similar functionality to LM385M-1.2, providing accurate and stable voltage references for different applications.

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