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LF398H from NS,National Semiconductor

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LF398H

Manufacturer: NS

Precision Sample and Hold Amplifier

Partnumber Manufacturer Quantity Availability
LF398H NS 200 In Stock

Description and Introduction

Precision Sample and Hold Amplifier The LF398H is a monolithic sample-and-hold integrated circuit manufactured by National Semiconductor (NS). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Manufacturer:** National Semiconductor (NS)  
- **Type:** Sample-and-Hold Circuit  
- **Operating Voltage Range:** ±5V to ±18V  
- **Hold Capacitor:** External (typically 0.01µF)  
- **Acquisition Time:** 6µs (to 0.1% with 1µF capacitor)  
- **Droop Rate:** 0.5mV/ms (with 1µF hold capacitor)  
- **Gain Bandwidth Product:** 3.5MHz  
- **Input Bias Current:** 30pA  
- **Input Offset Voltage:** 3mV (max)  
- **Temperature Range:** -55°C to +125°C (military grade)  

### **Descriptions:**  
- The LF398H is designed for high-speed data acquisition systems.  
- It features low droop rate and fast acquisition time.  
- The device includes an internal hold capacitor but can also use an external one for improved performance.  
- It is available in a hermetic TO-5 metal can package.  

### **Features:**  
- **High Accuracy:** Low offset voltage and high bandwidth.  
- **Low Droop Rate:** Minimizes voltage decay during hold mode.  
- **Fast Acquisition Time:** Suitable for high-speed applications.  
- **Wide Operating Voltage Range:** Supports ±5V to ±18V supplies.  
- **Low Input Bias Current:** Reduces errors in high-impedance circuits.  
- **Military Temperature Range:** Suitable for harsh environments.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Precision Sample and Hold Amplifier

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