MAX7408EUA/GG8

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal Processing
• Characteristics: Low-power, 8th-order, Butterworth low-pass filter
• Package: 8-pin µMAX® package
• Essence: High-performance signal filtering
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Filter Type: 8th-order Butterworth low-pass filter
• Cut-off Frequency: Programmable from 1Hz to 10kHz
• Supply Voltage Range: +2.7V to +5.5V
• Operating Temperature Range: -40°C to +85°C
• Input Voltage Range: ±VS/2
• Output Voltage Range: 0V to VS
• Total Harmonic Distortion: <0.01% at 1kHz
• Quiescent Current: 200µA (typical)

Pin Configuration

The MAX7408EUA/GG8 IC has the following pin configuration:

```

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| | --| V+ OUT |-- Pin 1 --| IN GND |-- Pin 2 --| FB REF |-- Pin 3 --| BP FS |-- Pin 4 --| LP VS |-- Pin 5 --| NC NC |-- Pin 6 --| NC NC |-- Pin 7 --| V- NC |-- Pin 8 |___________| ```

Functional Features

• Low-power consumption for energy-efficient applications
• High-performance signal filtering with programmable cut-off frequency
• Wide supply voltage range for versatile usage scenarios
• Low total harmonic distortion for accurate signal processing
• Small form factor package for space-constrained designs

Advantages and Disadvantages

Advantages: - Low-power consumption extends battery life in portable devices - Programmable cut-off frequency allows flexibility in filtering different signals - Wide supply voltage range enables compatibility with various power sources - Small package size saves board space in compact designs

Disadvantages: - Limited to low-pass filtering applications only - Not suitable for high-frequency signal processing - Requires external components for complete circuit implementation

Working Principles

The MAX7408EUA/GG8 is an 8th-order Butterworth low-pass filter IC. It operates by attenuating frequencies above the programmable cut-off frequency while allowing lower frequencies to pass through. The input signal is connected to the IN pin, and the filtered output is obtained from the OUT pin. By adjusting the cut-off frequency using external components, the desired frequency range can be filtered effectively.

Detailed Application Field Plans

The MAX7408EUA/GG8 finds applications in various fields, including:

1. Audio Systems: Filtering out unwanted noise and high-frequency interference from audio signals.
2. Communications: Signal conditioning and filtering in wireless communication systems.
3. Industrial Control: Filtering analog sensor signals for accurate measurement and control.
4. Medical Devices: Signal processing in medical equipment for diagnostics and monitoring.
5. Automotive Electronics: Filtering signals in automotive audio systems and engine control units.

Detailed and Complete Alternative Models

1. MAX7404ESA: Similar low-power, 8th-order Butterworth low-pass filter IC in a 8-pin SOIC package.
2. MAX7406EUA: Low-power, 6th-order Butterworth low-pass filter IC in a 8-pin µMAX package.
3. MAX7409EUA: Higher-order (9th) Butterworth low-pass filter IC in a 8-pin µMAX package.

These alternative models offer similar functionality and can be considered based on specific design requirements.

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