LF398 IC - Sample and Hold Amplifier [Original]

LF398 IC: High-Accuracy BI-FET Sample and Hold Amplifier with Fast Acquisition

The LF398 IC is a state-of-the-art monolithic sample-and-hold amplifier, leveraging advanced BI-FET technology for superior performance. It delivers ultrahigh DC accuracy, achieving a remarkable 0.002% typical DC gain accuracy. Experience rapid signal acquisition with times as fast as 6 µs, ensuring precise data capture. Its exceptionally low droop rate, thanks to P-channel JFETs, offers superior noise performance. Operating efficiently from ±5-V to ±18-V supplies, it integrates seamlessly into 1-MHz operational amplifier feedback loops. With TTL, PMOS, and CMOS compatibility, the LF398 is ideal for high-speed data acquisition and precision signal processing. This amplifier supports high-source impedances without compromising accuracy, making it a versatile choice for demanding applications.

Specifications:

• Supply Voltage: ±18 V (Max)
• Power Dissipation: 500 mW
• Input Voltage: ±18 V (Max)
• Logic-to-Logic Reference Differential Voltage: 7-30 V
• Output Short Circuit Duration: Indefinite
• Hold Capacitor Short Circuit Duration: 10 sec
• Operating Temperature Range: -65 to 150 °C

Key features and benefits:

• Ultrahigh 0.002% DC Gain Accuracy
• Fast Acquisition Time: Less than 10 µs
• Wide Operating Supply Range: ±5V to ±18V
• Logic Input Compatibility with TTL, PMOS, and CMOS
• Low Droop Rate with P-channel JFETs
• Low Input Offset Voltage
• Wide Bandwidth for stable operation with 1-MHz op-amps
• No Input-to-Output Feedthrough in Hold Mode

Applications:

• High-Speed Data Acquisition Systems
• Analog-to-Digital Converter (ADC) Front Ends
• Precision Signal Processing and Conditioning
• Multiplexed Data Systems
• Peak Detection and Measurement Circuits

Package Includes:

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