LM385D-2.5G

Overview

Product Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Low voltage reference - Precision output voltage of 2.5V - Low temperature coefficient - Low power consumption

Package: SOIC-8

Essence: The LM385D-2.5G is a precision voltage reference IC that provides a stable and accurate output voltage of 2.5V. It is commonly used in various electronic circuits where a precise voltage reference is required.

Packaging/Quantity: The LM385D-2.5G is typically available in a standard SOIC-8 package. It is sold individually or in reels containing multiple units.

Specifications

• Output Voltage: 2.5V ± 0.5%
• Temperature Coefficient: 100 ppm/°C (maximum)
• Supply Voltage Range: 1.9V to 5.5V
• Quiescent Current: 120 µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM385D-2.5G has a total of 8 pins arranged as follows:

____ Vout | | GND | | NC | | NC | | NC | | NC | | NC | | Vin |____|

Pin Description: - Vout: Output Voltage - GND: Ground - NC: No Connection - Vin: Input Voltage

Functional Features

1. Precision Voltage Reference: The LM385D-2.5G provides a highly accurate and stable output voltage of 2.5V, making it suitable for applications requiring precise voltage references.

2. Low Temperature Coefficient: With a maximum temperature coefficient of 100 ppm/°C, the LM385D-2.5G maintains its output voltage stability over a wide temperature range.

3. Low Power Consumption: The IC operates with a low quiescent current of 120 µA, making it energy-efficient and suitable for battery-powered applications.

Advantages

• High precision and stability in providing a 2.5V reference voltage.
• Low temperature coefficient ensures accurate performance across varying temperatures.
• Low power consumption extends battery life in portable devices.
• Compact SOIC-8 package allows for easy integration into circuit designs.

Disadvantages

• Limited output voltage options (fixed at 2.5V).
• Not suitable for applications requiring adjustable or programmable reference voltages.

Working Principles

The LM385D-2.5G utilizes bandgap voltage reference technology to generate a stable and precise output voltage. It employs a combination of active and passive components to compensate for temperature variations and ensure consistent performance.

Application Field Plans

The LM385D-2.5G finds application in various electronic systems where a reliable and accurate voltage reference is essential. Some potential application fields include:

1. Analog-to-Digital Converters (ADC): The IC can be used as a reference voltage source for ADCs, ensuring accurate conversion of analog signals.

2. Voltage Regulators: It can serve as a stable reference voltage for voltage regulators, improving their overall performance and regulation accuracy.

3. Sensor Calibration: The LM385D-2.5G can be employed in sensor calibration circuits to provide a precise reference voltage for calibration purposes.

4. Battery Management Systems: It can be utilized in battery management systems to monitor and control battery charging and discharging processes accurately.

Alternative Models

1. LM4040-2.5: A similar voltage reference IC with a fixed output voltage of 2.5V, available in a SOT-23 package.
2. LT1004-2.5: Another precision voltage reference IC offering a 2.5V output voltage, provided in a TO-92 package.
3. REF102CU: A high-precision voltage reference IC with a fixed 2.5V output voltage, packaged in a SOIC-8.

These alternative models can be considered based on specific requirements and compatibility with the application.

In conclusion, the LM385D-2.5G is a precision voltage reference IC that offers a stable and accurate 2.5V output voltage. Its low temperature coefficient, low power consumption, and compact package make it suitable for various electronic applications requiring precise voltage references.