LM285Z-1.2#TRPBF

Product Overview

Category

The LM285Z-1.2#TRPBF belongs to the category of voltage references.

Use

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

Characteristics

• Provides a stable and accurate voltage reference of 1.2 volts.
• Offers low temperature coefficient and high initial accuracy.
• Operates over a wide temperature range.
• Requires minimal external components for operation.

Package

The LM285Z-1.2#TRPBF is available in a TO-92 package, which is a small plastic package with three leads.

Essence

The essence of LM285Z-1.2#TRPBF lies in its ability to provide a precise and stable voltage reference, ensuring reliable performance in electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of LM285Z-1.2#TRPBF units per package.

Specifications

• Voltage Reference: 1.2 volts
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 100 ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.7V to 40V
• Quiescent Current: 120 µA

Detailed Pin Configuration

The LM285Z-1.2#TRPBF has three pins:

1. VOUT: Output pin, provides a stable 1.2V reference voltage.
2. GND: Ground pin, connected to the system ground.
3. VIN: Input pin, connected to the supply voltage.

Functional Features

• Precise Voltage Reference: The LM285Z-1.2#TRPBF ensures a stable and accurate 1.2V reference voltage, crucial for precise circuit operation.
• Low Temperature Coefficient: With a temperature coefficient of 100 ppm/°C, the LM285Z-1.2#TRPBF maintains its accuracy over a wide temperature range.
• Low Quiescent Current: The device operates with a low quiescent current of 120 µA, minimizing power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages

• High initial accuracy ensures reliable voltage reference.
• Wide operating temperature range allows for versatile application.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited output voltage options (fixed at 1.2V).
• Requires external components for proper operation.

Working Principles

The LM285Z-1.2#TRPBF utilizes bandgap voltage reference technology to generate a stable 1.2V 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 design ensures accurate voltage reference despite changes in ambient temperature.

Detailed Application Field Plans

The LM285Z-1.2#TRPBF finds applications in various electronic systems, including but not limited to: - Precision analog circuits - Voltage regulators - Data acquisition systems - Battery-powered devices - Industrial control systems

Detailed and Complete Alternative Models

• LM4040-1.2: A precision shunt voltage reference with similar characteristics.
• LT1236: A micropower precision series voltage reference offering high accuracy and low temperature drift.
• REF102: A precision voltage reference with low noise and excellent long-term stability.

These alternative models provide similar functionality and can be used as substitutes for LM285Z-1.2#TRPBF in different applications.

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