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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：1 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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Overview
The LF398AN is a monolithic sample-and-hold circuit 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 an analog input type. Designed for through-hole mounting, it is housed in an 8-pin PDIP package. The component functions as a single-channel amplifier suitable for data acquisition systems requiring precise temporal sampling of continuous signals.
Feature Summary
- Monolithic integration of sample-and-hold functionality using BI-FET technology
- Supports analog input signal acquisition with single-channel operation
- Compatible with through-hole installation methods
Applications
- Data acquisition systems utilizing multiplexed inputs
- Frequency-to-voltage conversion circuits
- Analog-to-digital converter front-end conditioning
Procurement Notes
Verify the specific suffix against official Texas Instruments documentation to confirm pinout compatibility and electrical tolerances. Ensure the procurement channel provides valid RoHS compliance records. Confirm that the 8-pin PDIP package matches the target PCB footprint requirements before finalizing orders.
Selection Notes
Select this component when a dedicated sample-and-hold function is required rather than a general-purpose operational amplifier. Consider the 5 V to 18 V supply range and the 8-pin PDIP form factor for through-hole designs. Evaluate the BI-FET input stage characteristics against system noise and bandwidth requirements.
Part Context
This part belongs to the LF398 family of monolithic sample-and-hold circuits produced by Texas Instruments. The series includes variants such as the LF198 and LF298, which share similar functional architectures but may differ in temperature ranges or performance specifications. The LF398AN represents the standard commercial grade version in a through-hole package.
Replacement Considerations
Consult official datasheets for direct equivalents like the LF198 or LF298. Verify pin compatibility and electrical parameter alignment before substituting.
