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MAX291CPA+ from MAX,MAXIM - Dallas Semiconductor

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MAX291CPA+

Manufacturer: MAX

8th-Order, Lowpass, Switched-Capacitor Filters

Partnumber Manufacturer Quantity Availability
MAX291CPA+,MAX291CPA MAX 5600 In Stock

Description and Introduction

8th-Order, Lowpass, Switched-Capacitor Filters The **MAX291CPA+** is a **low-pass filter** manufactured by **Maxim Integrated** (now part of **Analog Devices**). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Type:** 8th-order, low-pass, switched-capacitor filter  
- **Cutoff Frequency Range:** Adjustable from **0.1Hz to 25kHz**  
- **Clock-to-Cutoff Frequency Ratio:** **100:1** (fixed)  
- **Supply Voltage Range:** **±5V** (dual supply) or **+5V to +12V** (single supply)  
- **Operating Temperature Range:** **0°C to +70°C**  
- **Package:** **8-pin PDIP (Plastic Dual In-line Package)**  
- **Sampling Rate:** Up to **250kHz** (depends on clock frequency)  
- **Total Harmonic Distortion (THD):** **-80dB** (typical)  
- **Stopband Attenuation:** **-80dB** (typical)  
- **Power Consumption:** **20mA** (typical)  

### **Descriptions:**  
- The **MAX291CPA+** is a **Butterworth filter** with a **steep roll-off** (-48dB/octave).  
- It is **clock-tunable**, meaning the cutoff frequency is set by an external clock signal.  
- Suitable for **anti-aliasing, noise reduction, and signal conditioning** in audio and data acquisition systems.  
- Includes an **internal clock oscillator** (optional) if an external clock is not provided.  

### **Features:**  
- **8th-order low-pass filtering** (Butterworth response)  
- **No external components required** for filtering (only a clock source)  
- **Single or dual-supply operation**  
- **Low distortion and high stopband rejection**  
- **Pin-compatible** with other MAX29x series filters (e.g., MAX292, MAX295)  

This IC is commonly used in **audio processing, medical instrumentation, and communication systems** where precise filtering is required.  

(Data sourced from Maxim Integrated/Analog Devices datasheets.)

Application Scenarios & Design Considerations

8th-Order, Lowpass, Switched-Capacitor Filters

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