LM285Z-2.5

Overview

Product Category

The LM285Z-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 of 2.5V.
• Low temperature coefficient ensures consistent performance across different operating conditions.
• High accuracy and low output impedance make it suitable for precision applications.
• Wide operating temperature range allows for use in diverse environments.

Package

The LM285Z-2.5 is available in a TO-92 package, which is a small plastic package with three leads.

Essence

The essence of LM285Z-2.5 lies in its ability to provide a reliable and precise voltage reference, ensuring consistent performance in electronic circuits.

Packaging/Quantity

The LM285Z-2.5 is typically packaged in reels or tubes, containing a specific quantity of units per package. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Output Voltage: 2.5V
• Initial Accuracy: ±1%
• Temperature Coefficient: 100 ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.7V to 40V
• Output Current: 20 mA (maximum)

Detailed Pin Configuration

The LM285Z-2.5 has three pins:

1. Vout: Output pin that provides a stable 2.5V reference voltage.
2. GND: Ground pin connected to the reference voltage source.
3. Vin: Input pin connected to the supply voltage source.

Functional Features

• Precise Voltage Reference: The LM285Z-2.5 offers a highly accurate and stable 2.5V reference voltage, ensuring reliable performance in various applications.
• Low Temperature Coefficient: Its low temperature coefficient minimizes voltage variations with changes in temperature, making it suitable for temperature-sensitive circuits.
• Low Output Impedance: The device has a low output impedance, enabling it to drive loads with minimal voltage drop.
• Wide Operating Temperature Range: With an operating temperature range of -40°C to +85°C, the LM285Z-2.5 can be used in extreme environmental conditions.

Advantages and Disadvantages

Advantages

• High accuracy and stability.
• Low temperature coefficient.
• Small package size.
• Wide operating temperature range.

Disadvantages

• Limited output current capability.
• Requires an external power supply.

Working Principles

The LM285Z-2.5 is based on a bandgap reference circuit that generates a stable voltage reference using a combination of bipolar and CMOS technologies. It utilizes temperature-compensated components to minimize the effect of temperature variations on the output voltage.

Detailed Application Field Plans

The LM285Z-2.5 finds applications in various fields, including:

1. Precision Instrumentation: It can be used as a voltage reference in precision measuring instruments, ensuring accurate and reliable measurements.
2. Analog-to-Digital Converters (ADCs): The LM285Z-2.5 provides a stable reference voltage for ADCs, improving their accuracy and linearity.
3. Power Supply Regulation: It can be employed in voltage regulators to maintain a stable output voltage, enhancing the performance of power supply circuits.
4. Sensor Calibration: The LM285Z-2.5 serves as a precise reference voltage source for calibrating sensors, ensuring consistent and accurate readings.

Detailed and Complete Alternative Models

Some alternative models to LM285Z-2.5 include:

1. LM4040: A series of precision voltage references available in different output voltages.
2. LT6654: Ultra-precision voltage reference with low drift and noise characteristics.
3. REF5025: High-accuracy, low-noise voltage reference suitable for precision applications.

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.

In conclusion, the LM285Z-2.5 is a precision voltage reference that provides a stable and accurate 2.5V reference voltage. Its high accuracy, low temperature coefficient, and wide operating temperature range make it suitable for various applications in fields such as precision instrumentation, ADCs, power supply regulation, and sensor calibration. While it has limitations in terms of output current capability and requiring an external power supply, there are alternative models available to suit different needs.