4th-order continuous-time active filter The MAX275AEWP is a continuous-time active filter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual data:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Type:** Continuous-Time Active Filter
- **Package:** 20-pin Wide SOIC (SO)
- **Operating Voltage Range:** ±2.37V to ±5.5V (dual supply) or +4.75V to +11V (single supply)
- **Operating Temperature Range:** -40°C to +85°C
- **Filter Type:** 4th-Order or Dual 2nd-Order Butterworth, Chebyshev, or Elliptic
- **Center Frequency Range:** 10kHz to 150kHz (adjustable via external resistors)
- **Q-Factor Range:** 0.5 to 20 (adjustable)
- **Power Supply Rejection Ratio (PSRR):** 60dB (typical)
- **Total Harmonic Distortion (THD):** < -70dB (typical)
### **Descriptions:**
The MAX275AEWP is a monolithic, continuous-time active filter that integrates two independent 2nd-order filter sections. These can be cascaded to form a 4th-order filter or used separately. It eliminates the need for external capacitors, relying instead on external resistors for frequency and Q-factor tuning. The device supports lowpass, bandpass, and highpass configurations.
### **Features:**
- **No External Capacitors Required** – Uses external resistors for tuning.
- **Wide Frequency Range** – Adjustable from 10kHz to 150kHz.
- **Flexible Filter Configurations** – Supports Butterworth, Chebyshev, and Elliptic responses.
- **Low Noise and Distortion** – Ensures high signal fidelity.
- **Single or Dual Supply Operation** – Compatible with ±2.37V to ±5.5V or +4.75V to +11V.
- **High PSRR** – Minimizes power supply noise interference.
- **Monolithic Design** – Enhances reliability and reduces board space.
This information is strictly based on the manufacturer's datasheet and technical documentation.
