LM385BLP-1-2

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Low voltage reference - Precision output voltage - Low temperature coefficient - Low power consumption

Package: TO-92

Essence: The LM385BLP-1-2 is a low voltage precision voltage reference IC that provides a stable and accurate output voltage for various electronic applications.

Packaging/Quantity: Available in tape and reel packaging, with 1000 units per reel.

Specifications

• Output Voltage: 1.235V
• Temperature Coefficient: ±20ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.7V to 30V
• Quiescent Current: 120µA

Detailed Pin Configuration

The LM385BLP-1-2 has three pins:

1. Vout: Output pin, provides the stable reference voltage of 1.235V.
2. GND: Ground pin, connected to the ground of the circuit.
3. Vin: Input pin, connected to the supply voltage.

Functional Features

• Precise Voltage Reference: The LM385BLP-1-2 offers a highly accurate and stable output voltage of 1.235V, making it suitable for precision applications.
• Low Temperature Coefficient: With a temperature coefficient of ±20ppm/°C, this IC maintains its accuracy over a wide temperature range.
• Low Power Consumption: The quiescent current of only 120µA ensures minimal power consumption, making it ideal for battery-powered devices.

Advantages and Disadvantages

Advantages: - High precision and stability - Wide operating temperature range - Low power consumption - Small form factor

Disadvantages: - Limited output voltage options - Requires an external power supply

Working Principles

The LM385BLP-1-2 is based on a bandgap reference circuit that generates a stable voltage reference using temperature-dependent properties of semiconductor materials. It compensates for temperature variations to provide a precise and stable output voltage.

Detailed Application Field Plans

The LM385BLP-1-2 finds applications in various electronic systems where a stable and accurate voltage reference is required. Some common application fields include:

1. Analog-to-Digital Converters (ADCs)
2. Digital-to-Analog Converters (DACs)
3. Voltage regulators
4. Battery management systems
5. Precision measurement instruments

Detailed and Complete Alternative Models

1. LM4040: Another precision voltage reference IC with different output voltage options.
2. LT6654: A high-precision voltage reference IC with ultra-low temperature coefficient.
3. REF5025: Precision voltage reference IC with low dropout voltage and high accuracy.

These alternative models offer similar functionality and can be considered as alternatives to the LM385BLP-1-2 depending on specific requirements.

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