8th-Order, Lowpass, Elliptic, Switched-Capacitor Filters The MAX297CPA is a switched-capacitor, 8th-order, lowpass, elliptic filter manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Filter Type:** 8th-order, lowpass, elliptic  
- **Architecture:** Switched-capacitor  
- **Cutoff Frequency Range:** Programmable from 0.1Hz to 25kHz  
- **Clock-to-Cutoff Ratio:** 100:1  
- **Supply Voltage:** ±5V (dual supply)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 8-pin PDIP (Plastic Dual In-line Package)  
- **Pin Count:** 8  
- **Qualification:** Commercial grade  

### **Descriptions:**  
The MAX297CPA is a precision, lowpass filter designed for signal conditioning applications. It uses a switched-capacitor architecture to provide accurate and stable filtering performance. The cutoff frequency is set by an external clock signal, allowing flexibility in system design.  

### **Features:**  
- **Elliptic Response:** Sharp roll-off with minimal passband ripple.  
- **Programmable Cutoff Frequency:** Adjustable via external clock.  
- **Low THD (Total Harmonic Distortion):** Ensures signal integrity.  
- **Single or Dual Supply Operation:** Supports ±5V or +5V configurations.  
- **No External Components Required:** Minimal external circuitry needed.  
- **Low Power Consumption:** Suitable for battery-powered applications.  

The MAX297CPA is commonly used in data acquisition, telecommunications, and audio processing systems.

8th-Order, Lowpass, Elliptic, Switched-Capacitor Filters