SI2494-A-GMR

Product Overview

• Category: Integrated Circuit
• Use: Signal Amplification and Conditioning
• Characteristics: High Gain, Low Noise, Small Form Factor
• Package: Surface Mount Technology (SMT)
• Essence: Amplifying and conditioning weak electrical signals
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 3.3V
• Operating Temperature: -40°C to +85°C
• Gain: 50 dB
• Bandwidth: 1 MHz to 100 MHz
• Input Impedance: 50 Ohms
• Output Impedance: 75 Ohms
• Package Dimensions: 5mm x 5mm

Detailed Pin Configuration

The SI2494-A-GMR has a total of 8 pins arranged in a dual in-line package (DIP) configuration:

1. Pin 1: VCC (Power Supply)
2. Pin 2: GND (Ground)
3. Pin 3: IN+ (Positive Input)
4. Pin 4: IN- (Negative Input)
5. Pin 5: OUT (Output)
6. Pin 6: NC (No Connection)
7. Pin 7: NC (No Connection)
8. Pin 8: NC (No Connection)

Functional Features

• High gain amplification of weak electrical signals
• Low noise performance for accurate signal conditioning
• Wide bandwidth for versatile signal processing
• Small form factor for space-constrained applications
• Suitable for both AC and DC signal amplification

Advantages and Disadvantages

Advantages

• High gain allows amplification of weak signals without distortion
• Low noise ensures accurate signal conditioning
• Wide bandwidth enables versatile signal processing
• Small form factor saves space in compact designs

Disadvantages

• Limited to a single power supply voltage (3.3V)
• Not suitable for high-frequency applications above 100 MHz
• Input and output impedance may not match all signal sources and loads

Working Principles

The SI2494-A-GMR operates based on the principle of amplification using a combination of active and passive components. The input signal is first amplified by an internal transistor circuit, which provides the desired gain. The amplified signal is then conditioned to reduce noise and improve signal quality. Finally, the conditioned signal is output through the designated pin.

Detailed Application Field Plans

The SI2494-A-GMR finds applications in various fields where signal amplification and conditioning are required. Some specific application areas include:

1. Audio Systems: Amplifying weak audio signals from microphones or musical instruments.
2. Communication Systems: Boosting signal strength in wireless communication devices.
3. Sensor Networks: Amplifying sensor signals for accurate data acquisition.
4. Medical Devices: Enhancing weak biomedical signals for diagnosis and monitoring.
5. Industrial Automation: Conditioning signals from sensors for process control.

Detailed and Complete Alternative Models

1. SI2494-B-GMR: Similar specifications with improved input/output impedance matching.
2. SI2494-C-GMR: Higher gain version with extended bandwidth up to 200 MHz.
3. SI2494-D-GMR: Lower power consumption variant with reduced gain.

Note: The alternative models listed above are just examples and not an exhaustive list.

This entry provides a comprehensive overview of the SI2494-A-GMR integrated circuit, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.