Audio Differential Line Receivers, +-6dB (G=1/2 or 2) 8-PDIP -40 to 85 The INA137PAG4 is a high-performance, differential line receiver manufactured by Texas Instruments (BB). Here are the key specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** Texas Instruments (BB)  
- **Type:** Differential Line Receiver  
- **Supply Voltage Range:** ±4.5V to ±18V  
- **Input Common-Mode Voltage Range:** ±12V  
- **Gain:** 0.5 (fixed)  
- **Bandwidth:** 1.5MHz (typical)  
- **Slew Rate:** 7V/µs (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 0.002% (typical)  
- **Package:** 8-pin PDIP (PAG4)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Description:**  
The INA137PAG4 is designed for high-performance audio and industrial applications requiring differential signal reception. It converts balanced differential signals to single-ended outputs with high accuracy and low distortion.  

### **Features:**  
- **High Common-Mode Rejection Ratio (CMRR):** 90dB (typical)  
- **Low Noise:** 10nV/√Hz (typical)  
- **Wide Supply Voltage Range:** Supports ±4.5V to ±18V operation  
- **Low Distortion:** Suitable for high-fidelity audio applications  
- **Robust Input Protection:** Handles high common-mode voltages  
- **Industrial-Grade Performance:** Reliable operation in harsh environments  

This device is commonly used in professional audio equipment, instrumentation, and communication systems requiring precise differential signal processing.