Zero-Error, Bessel Lowpass Filter The MAX281BCPA is a fifth-order, lowpass, switched-capacitor filter manufactured by Maxim Integrated.
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Type:** Fifth-order, lowpass, switched-capacitor filter
- **Cutoff Frequency Range:** 0.1Hz to 25kHz
- **Clock-to-Cutoff Ratio:** 100:1
- **Supply Voltage Range:** ±5V to ±8V (dual supply) or +5V to +16V (single supply)
- **Operating Temperature Range:** 0°C to +70°C
- **Package:** 8-pin PDIP (Plastic Dual In-line Package)
- **Pin Count:** 8
- **Typical Power Consumption:** 10mW
- **Input Impedance:** 10MΩ
- **Output Impedance:** 200Ω
### **Descriptions:**
The MAX281BCPA is a monolithic, fifth-order, lowpass filter that uses a switched-capacitor technique to achieve precise frequency response characteristics. It is designed for applications requiring lowpass filtering with minimal external components. The filter's cutoff frequency is set by an external clock signal, making it highly flexible for various signal processing tasks.
### **Features:**
- **Fifth-order Butterworth Response** – Provides a sharp roll-off and flat passband.
- **Wide Frequency Range** – Adjustable cutoff frequency from 0.1Hz to 25kHz.
- **Low Power Consumption** – Typically 10mW.
- **Single or Dual Supply Operation** – Supports ±5V to ±8V (dual) or +5V to +16V (single).
- **No External Components Required** – Minimal external circuitry needed for operation.
- **High Input Impedance (10MΩ)** – Reduces loading effects on the signal source.
- **Low Output Impedance (200Ω)** – Can drive typical loads directly.
This information is based solely on the manufacturer's datasheet and technical documentation.
