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LF398N from NATIONAL,National Semiconductor

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LF398N

Manufacturer: NATIONAL

Precision Sample and Hold Amplifier in DIP8 Package

Partnumber Manufacturer Quantity Availability
LF398N NATIONAL 47 In Stock

Description and Introduction

Precision Sample and Hold Amplifier in DIP8 Package The LF398N is a monolithic sample-and-hold integrated circuit manufactured by **NATIONAL Semiconductor**.  

### **Specifications:**  
- **Type**: Sample-and-Hold (S/H) IC  
- **Supply Voltage Range**: ±5V to ±18V  
- **Hold Capacitor**: Requires an external capacitor (typically 0.01µF to 1µF)  
- **Acquisition Time**: 6µs (typical) to 0.01% with 1µF capacitor  
- **Droop Rate**: 0.5mV/ms (typical) with 1µF capacitor  
- **Input Offset Voltage**: 3mV (max)  
- **Input Bias Current**: 30nA (max)  
- **Gain Bandwidth Product**: 3.5MHz  
- **Operating Temperature Range**: 0°C to +70°C  

### **Descriptions and Features:**  
- **High Accuracy**: Low droop rate and fast acquisition time.  
- **Low Input Offset Voltage**: Ensures precision in signal sampling.  
- **Wide Supply Voltage Range**: Operates from ±5V to ±18V.  
- **Internal Hold Capacitor Isolation**: Reduces hold step errors.  
- **Low Output Noise**: Suitable for precision applications.  
- **TTL/CMOS Compatible Logic Input**: Ease of interfacing with digital circuits.  

The LF398N is commonly used in data acquisition systems, analog-to-digital converters (ADCs), and signal processing applications.

Application Scenarios & Design Considerations

Precision Sample and Hold Amplifier in DIP8 Package

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