10kHz to 150kHz Digitally Controlled Antialiasing Filter and 4-Bit P.G.A The LTC1564IG is a high-performance, low-noise, 4th-order continuous-time active RC filter manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Filter Type:** 4th-order, lowpass filter  
- **Architecture:** Continuous-time active RC  
- **Cutoff Frequency Range:** 10kHz to 150kHz (set by external resistor)  
- **Stopband Attenuation:** >72dB (typical)  
- **Passband Ripple:** <0.3dB  
- **Supply Voltage Range:** ±2.5V to ±7.5V (dual supply) or +5V to +15V (single supply)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-lead SSOP  

### **Descriptions and Features:**  
- **Low Noise:** 40nV/√Hz input-referred noise  
- **Low Distortion:** THD < -80dB at 1kHz  
- **Precision Filtering:** No clock noise or aliasing  
- **Adjustable Cutoff Frequency:** Set via a single external resistor  
- **Rail-to-Rail Output Swing:** Ensures wide dynamic range  
- **Single or Dual Supply Operation:** Flexible power options  
- **No External Clock Required:** Continuous-time operation eliminates clock feedthrough  

The LTC1564IG is commonly used in applications requiring precise analog filtering, such as anti-aliasing, signal conditioning, and communication systems.

10kHz to 150kHz Digitally Controlled Antialiasing Filter and 4-Bit P.G.A