LF398N

Description：IC SAMPL/HOLD 1 CIRCUIT 8DIP
Series：-
Mfr：Texas Instruments
Package：Tube

SKU:f893201c81d0 Category: Instrumentation, Op Amps, Buffer Amps Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC SAMPL/HOLD 1 CIRCUIT 8DIP
Series：-
Mfr：Texas Instruments
Package：Tube
Amplifier Type：Sample and Hold
Number of Circuits：1
Output Type：-
Slew Rate：-
Gain Bandwidth Product：-
Current - Input Bias：10 nA
Voltage - Input Offset：2 mV
Current - Supply：4.5mA
Current - Output / Channel：-
Voltage - Supply Span (Min)：10 V
Voltage - Supply Span (Max)：36 V
Operating Temperature：0°C ~ 70°C
Grade：-
Qualification：-
Mounting Type：Through Hole
Package / Case：8-DIP (0.300", 7.62mm)
Supplier Device Package：8-PDIP
-3db Bandwidth：-

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LF398N

Overview

The LF398N is a monolithic sample and hold amplifier manufactured by Texas Instruments. It utilizes BI-FET technology to provide high-speed acquisition and low droop rates for analog signal processing. The device operates within a supply voltage range of 5 V to 18 V and supports through-hole installation in an 8-pin PDIP package. It features a capture time of 4 μs and functions within a temperature range of 0°C to +70°C.

Feature Summary

Monolithic integration of sample and hold circuitry using BI-FET technology
High-speed acquisition capability with specified capture time
Low droop rate performance for accurate signal retention
Single-channel analog input configuration

Applications

Data acquisition systems utilizing ADC0816 and ADC0817
Frequency-to-voltage converters requiring improved response and ripple reduction
Analog-to-digital conversion interfaces with ADC0808/809 multiplexers

Procurement Notes

Verify the specific suffix N/NOPB against official Texas Instruments documentation to confirm RoHS compliance status and exact pinout configuration. Ensure the ordering part number matches the required package style and environmental specifications before procurement. Cross-reference datasheet revisions to confirm current manufacturing status and availability constraints.

Selection Notes

Select this component for applications requiring single-channel sampling with moderate speed requirements. The BI-FET input stage offers low bias current suitable for high-impedance sources. Verify that the 5 V to 18 V supply range aligns with system power rails. Confirm that the PDIP-8 package fits the target PCB layout and thermal management requirements.

Part Context

This device belongs to the LF398 series of sample and hold amplifiers. It serves as a discrete solution for capturing analog signals at precise intervals. The component is distinct from logic multiplexers like the SN74LS398N3 or operational amplifiers such as the LM358N. It is specifically designed for transient signal storage rather than continuous amplification or digital switching.