LM285LPRE3-2-5

Product Overview

Category

The LM285LPRE3-2-5 belongs to the category of voltage references.

Use

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

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Wide operating temperature range
• Low power consumption

Package

The LM285LPRE3-2-5 is available in a small SOT-23 package, which is suitable for surface mount applications.

Essence

The essence of LM285LPRE3-2-5 lies in its ability to provide a precise and stable voltage reference, ensuring accurate operation of electronic circuits.

Packaging/Quantity

The LM285LPRE3-2-5 is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Output Voltage: 2.5V
• Initial Accuracy: ±1%
• Temperature Coefficient: 50ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.7V to 40V
• Quiescent Current: 120µA

Detailed Pin Configuration

The LM285LPRE3-2-5 has three pins:

1. VOUT: Output voltage pin
2. GND: Ground pin
3. VIN: Input voltage pin

Functional Features

• Precise and stable output voltage
• Low power consumption
• Wide operating temperature range
• Good line and load regulation
• Low dropout voltage

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable performance.
• Low temperature coefficient minimizes voltage variations with temperature changes.
• Small package size allows for space-efficient designs.
• Wide operating temperature range makes it suitable for various environments.

Disadvantages

• Limited output voltage options (only 2.5V in this case).
• Relatively higher initial accuracy compared to some other voltage references.
• Not suitable for applications requiring high output currents.

Working Principles

The LM285LPRE3-2-5 utilizes a bandgap reference circuit to generate a precise and stable voltage reference. 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 constant over a wide temperature range.

Detailed Application Field Plans

The LM285LPRE3-2-5 finds applications in various electronic systems, including but not limited to:

1. Precision analog-to-digital converters (ADCs)
2. Voltage regulators
3. Data acquisition systems
4. Battery management circuits
5. Industrial control systems
6. Test and measurement equipment

Detailed and Complete Alternative Models

1. LM4040: A series of precision voltage references with different output voltage options.
2. LT1021: High-precision, low-drift voltage references for demanding applications.
3. REF50xx: Wide-input voltage range voltage references with excellent accuracy and stability.

These alternative models offer similar functionality and can be considered as substitutes for the LM285LPRE3-2-5 depending on specific requirements.

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