LM385BDR-2-5

Product Overview

Category

The LM385BDR-2-5 belongs to the category of voltage references.

Use

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

Characteristics

• Provides a stable and accurate voltage reference.
• Low temperature coefficient.
• High initial accuracy.
• Low power consumption.
• Wide operating temperature range.

Package

The LM385BDR-2-5 is available in a small outline package (SOIC) with eight pins.

Essence

The essence of LM385BDR-2-5 lies in its ability to provide a precise and stable voltage reference, which is crucial for many electronic applications.

Packaging/Quantity

The LM385BDR-2-5 is typically packaged in reels or tubes, containing a specific quantity of units per package.

Specifications

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

Detailed Pin Configuration

The LM385BDR-2-5 has eight pins arranged as follows:

1. Vout: Output Voltage
2. GND: Ground
3. NC: No Connection
4. NC: No Connection
5. NC: No Connection
6. NC: No Connection
7. NC: No Connection
8. Vin: Input Voltage

Functional Features

• Precise and stable output voltage reference.
• Low power consumption.
• Wide operating temperature range.
• Low temperature coefficient ensures minimal voltage drift over temperature variations.

Advantages

• High initial accuracy ensures reliable voltage reference.
• Low temperature coefficient minimizes voltage variations due to temperature changes.
• Wide operating temperature range allows for use in various environmental conditions.
• Low power consumption makes it suitable for battery-powered applications.

Disadvantages

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

Working Principles

The LM385BDR-2-5 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 relatively constant over a wide temperature range.

Detailed Application Field Plans

The LM385BDR-2-5 finds application in various electronic systems, including but not limited to:

1. Precision analog-to-digital converters (ADCs)
2. Voltage regulators
3. Battery management systems
4. Temperature sensors
5. Data acquisition systems
6. Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to LM385BDR-2-5 include:

1. LM4040
2. LT6654
3. REF02
4. MAX619
5. ADR3412

These models offer similar functionality and can be used as alternatives depending on specific requirements and availability.

In conclusion, the LM385BDR-2-5 is a precision voltage reference with excellent stability, accuracy, and low power consumption. Its wide operating temperature range and low temperature coefficient make it suitable for various electronic applications. However, its fixed output voltage may limit its usability in certain scenarios. Alternative models provide flexibility based on specific needs.