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LF398AH

Precision Sample and Hold Amplifier

Partnumber Manufacturer Quantity Availability
LF398AH 45 In Stock

Description and Introduction

Precision Sample and Hold Amplifier The LF398AH is a monolithic sample-and-hold integrated circuit manufactured by National Semiconductor (now part of Texas Instruments). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Supply Voltage Range:** ±5V to ±18V  
- **Input Voltage Range:** ±10V (with ±15V supplies)  
- **Gain Accuracy:** 0.002% typical  
- **Hold Step:** 0.5mV/µs (max)  
- **Acquisition Time:** 6µs (to 0.01%)  
- **Aperture Time:** 150ns  
- **Hold Capacitor:** External (typically 0.01µF)  
- **Operating Temperature Range:** -55°C to +125°C  
- **Package:** 8-pin TO-99 metal can  

### **Descriptions:**  
- The LF398AH is a precision sample-and-hold amplifier designed for high-speed data acquisition systems.  
- It features low droop rate, high accuracy, and fast acquisition time.  
- The device uses an advanced bipolar-FET technology for improved performance.  

### **Features:**  
- **Low Droop Rate:** 0.5mV/µs (max) in hold mode  
- **High Speed:** Fast acquisition and aperture times  
- **Low Offset Voltage:** 3mV (max)  
- **High Input Impedance:** 10¹⁰Ω  
- **TTL, PMOS, CMOS-Compatible Logic Input**  
- **Operates from Dual or Single Supply**  

The LF398AH is commonly used in analog-to-digital converters, data loggers, and signal processing systems.

Application Scenarios & Design Considerations

Precision Sample and Hold Amplifier

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