8th-Order, Lowpass, Elliptic, Switched-Capacitor Filters The MAX294CPA+ is a switched-capacitor, lowpass filter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Part Number:** MAX294CPA+
- **Type:** 8th-Order, Lowpass Switched-Capacitor Filter
- **Cutoff Frequency Range:** 0.1Hz to 25kHz (programmable via external clock)
- **Clock-to-Cutoff Frequency Ratio:** 100:1 (typical)
- **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)
- **Stopband Attenuation:** -80dB (typical)
- **Total Harmonic Distortion (THD):** 0.02% (typical)
- **Signal-to-Noise Ratio (SNR):** 80dB (typical)
- **Power Consumption:** 20mA (typical at ±5V supply)
### **Descriptions:**
- The MAX294CPA+ is an 8th-order elliptic lowpass filter with a steep roll-off and high stopband rejection.
- It uses a switched-capacitor architecture, allowing precise cutoff frequency adjustment via an external clock.
- Suitable for anti-aliasing, noise reduction, and signal conditioning in audio, communications, and instrumentation applications.
### **Features:**
- **Programmable Cutoff Frequency:** Adjustable via an external clock signal.
- **Single or Dual Supply Operation:** Supports both ±5V to ±8V and +5V to +16V configurations.
- **Low Distortion:** Ensures high signal fidelity.
- **High Stopband Rejection:** -80dB attenuation for effective noise filtering.
- **No External Components Required:** Internal clock oscillator simplifies design.
- **Pin-Compatible Upgrade:** Replaces older switched-capacitor filters like the MF10.
This information is based solely on the manufacturer's datasheet and technical documentation.
