LT1009ILPE3

Product Overview

• Category: Integrated Circuit
• Use: Voltage Reference
• Characteristics: High Precision, Low Dropout, Low Noise
• Package: TO-92
• Essence: The LT1009ILPE3 is a precision voltage reference designed for use in various electronic applications.
• Packaging/Quantity: Available in tape and reel packaging with 1,000 units per reel.

Specifications

• Output Voltage: 2.5V
• Initial Accuracy: ±0.4%
• Temperature Coefficient: 10ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Input Voltage Range: 4.5V to 40V
• Quiescent Current: 1.5mA

Pin Configuration

The LT1009ILPE3 has three pins:

1. VOUT: Output Voltage
2. VIN: Input Voltage
3. GND: Ground

Functional Features

• High precision voltage reference with low initial accuracy and temperature coefficient.
• Low dropout voltage ensures stable output even with varying input voltage.
• Low noise output suitable for sensitive analog circuitry.
• Wide operating temperature range allows for use in various environments.
• Simple three-pin configuration for easy integration into circuits.

Advantages

• High precision and low initial accuracy ensure accurate voltage references.
• Low dropout voltage enables stable operation even with low input voltages.
• Low noise output minimizes interference in sensitive applications.
• Wide operating temperature range provides versatility in different environments.
• Easy integration due to simple three-pin configuration.

Disadvantages

• Limited output voltage of 2.5V may not be suitable for all applications requiring different reference voltages.
• Quiescent current of 1.5mA may be relatively high for low-power applications.

Working Principles

The LT1009ILPE3 utilizes a bandgap reference circuit to generate a stable and precise 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 that the output voltage remains constant over a wide temperature range.

Application Field Plans

The LT1009ILPE3 is commonly used in the following applications:

1. Precision analog circuits
2. Voltage regulators
3. Data acquisition systems
4. Test and measurement equipment
5. Industrial control systems

Alternative Models

Below are some alternative models that can be considered as substitutes for the LT1009ILPE3:

1. LM4040CIM3-2.5/NOPB
2. REF102CU
3. MAX6126AASA25
4. LT6657BHMS8-2.5#PBF
5. ADR4550BRZ

These models offer similar characteristics and performance, providing options for different design requirements.

In conclusion, the LT1009ILPE3 is a high-precision voltage reference with low dropout and low noise characteristics. Its wide operating temperature range and simple pin configuration make it suitable for various electronic applications. However, designers should consider alternative models if different output voltages or lower quiescent currents are required.