LM285Z-1.2/NOPB

Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Low Dropout Voltage - Precision Output Voltage - Low Quiescent Current - Wide Operating Temperature Range

Package: TO-92

Essence: The LM285Z-1.2/NOPB is a precision voltage reference IC that provides a stable and accurate output voltage of 1.2V. It is commonly used in various electronic circuits where a precise voltage reference is required.

Packaging/Quantity: The LM285Z-1.2/NOPB is available in a TO-92 package, which is a small plastic package with three leads. It is typically sold in reels or tubes containing multiple units.

Specifications

• Output Voltage: 1.2V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 100ppm/°C
• Dropout Voltage: 60mV
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM285Z-1.2/NOPB has three pins:

1. Vout: Output Voltage
2. GND: Ground
3. Vin: Input Voltage

Functional Features

• Low Dropout Voltage: The LM285Z-1.2/NOPB has a low dropout voltage of only 60mV, allowing it to operate efficiently even when the input voltage is close to the desired output voltage.
• Precision Output Voltage: With an initial accuracy of ±0.5%, the LM285Z-1.2/NOPB provides a highly precise output voltage of 1.2V, making it suitable for applications requiring stable and accurate voltage references.
• Low Quiescent Current: The quiescent current of 120µA ensures minimal power consumption, making the LM285Z-1.2/NOPB suitable for battery-powered devices and other low-power applications.
• Wide Operating Temperature Range: The LM285Z-1.2/NOPB can operate reliably in a wide temperature range from -40°C to +85°C, making it suitable for various environmental conditions.

Advantages and Disadvantages

Advantages: - Precise and stable output voltage - Low dropout voltage - Low quiescent current - Wide operating temperature range

Disadvantages: - Limited output voltage options (only 1.2V)

Working Principles

The LM285Z-1.2/NOPB is based on bandgap reference technology. It utilizes the voltage difference between two different semiconductor materials to generate a stable and accurate reference voltage. This reference voltage is then used as a comparison for other circuitry, ensuring precise voltage regulation.

Detailed Application Field Plans

The LM285Z-1.2/NOPB finds applications in various electronic systems where a stable and accurate voltage reference is required. Some common application fields include:

1. Power Management: The LM285Z-1.2/NOPB can be used in power management circuits to provide a stable voltage reference for voltage regulators, ensuring consistent and reliable power supply.
2. Analog-to-Digital Conversion: In analog-to-digital converters (ADCs), the LM285Z-1.2/NOPB can be used as a reference voltage source to ensure accurate conversion of analog signals into digital values.
3. Sensor Calibration: Many sensors require a precise voltage reference for calibration purposes. The LM285Z-1.2/NOPB can be employed to provide this reference voltage, enabling accurate sensor measurements.
4. Battery-Powered Devices: Due to its low quiescent current and low dropout voltage, the LM285Z-1.2/NOPB is suitable for battery-powered devices such as portable electronics, ensuring efficient power utilization.

Detailed and Complete Alternative Models

Some alternative models to the LM285Z-1.2/NOPB that provide similar functionality include:

1. LM4040: This series of voltage reference ICs offers various output voltage options and precise voltage regulation.
2. LT6654: These precision voltage references provide low drift and high accuracy over a wide temperature range.
3. MAX619: This family of voltage references offers low dropout voltage and low quiescent current, suitable for low-power applications.

These alternative models can be considered based on specific requirements and application needs.

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