12-Bit Plus Sign Data Acquisition System with Self-Calibration The LM12458CIVF is a part manufactured by National Semiconductor (NS). Below are the factual details from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** National Semiconductor (NS)  
- **Part Number:** LM12458CIVF  
- **Type:** Integrated Circuit (IC)  
- **Package:** Ceramic Quad Flat Pack (CQFP)  
- **Operating Temperature Range:** Industrial (-40°C to +85°C)  

### **Descriptions:**  
- The LM12458CIVF is a high-performance analog or mixed-signal IC (specific function not explicitly stated in the provided knowledge base).  
- Designed for industrial applications requiring reliable operation under varying temperature conditions.  

### **Features:**  
- **High Precision:** Suitable for applications demanding accurate signal processing.  
- **Robust Packaging:** CQFP ensures durability and thermal performance.  
- **Industrial-Grade:** Operates reliably in harsh environments.  

(Note: Additional technical details such as pin configuration, electrical characteristics, or application notes were not provided in Ic-phoenix technical data files.)

12-Bit Plus Sign Data Acquisition System with Self-Calibration