LF398 IC - Sample and Hold Amplifier [Original]

LF398 IC - Sample and Hold Amplifier

The LF398 IC is a monolithic sample-and-hold amplifier. It utilizes BI-FET technology. The device achieves 0.002% typical DC gain accuracy. Signal acquisition times are as fast as 6 µs. A low droop rate is maintained through P-channel JFETs. It operates from ±5-V to ±18-V supplies. The LF398 integrates into 1-MHz operational amplifier feedback loops. It offers compatibility with TTL, PMOS, and CMOS logic. High-source impedances are supported without accuracy compromise.

Specifications:

• Supply Voltage (Max): ±18 V
• Power Dissipation: 500 mW
• Input Voltage (Max): ±18 V
• 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:

• 0.002% typical DC gain accuracy
• Acquisition time less than 10 µs
• Operating supply range: ±5V to ±18V
• Logic input compatibility: TTL, PMOS, CMOS
• Low droop rate via P-channel JFETs
• Low input offset voltage
• Wide bandwidth for 1-MHz op-amp stability
• 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

Frequently Asked Questions:

Q: What is the typical DC gain accuracy of the LF398 IC?
A: The LF398 IC provides a typical DC gain accuracy of 0.002%.

Q: What is the acquisition time for the LF398 IC?
A: The acquisition time for the LF398 IC is less than 10 µs, with times as fast as 6 µs.

Q: What supply voltage range does the LF398 IC support?
A: The LF398 IC operates within a supply voltage range of ±5V to ±18V.

Q: Is the LF398 IC compatible with different logic families?
A: Yes, the LF398 IC is compatible with TTL, PMOS, and CMOS logic inputs.

Q: What is the maximum operating temperature for the LF398 IC?
A: The maximum operating temperature for the LF398 IC is 150 °C.

Package Includes:

*Image shown is a representation only.

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