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Product Detailed Parameters
- Description：IC SAMPL/HOLD 1 CIRCUIT TO99-8
- Series：-
- Mfr：Texas Instruments
- Package：Box
- Amplifier Type：Sample and Hold
- Number of Circuits：1
- Output Type：-
- Slew Rate：-
- Gain Bandwidth Product：-
- Current - Input Bias：5 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：-55°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-99-8 Metal Can
- Supplier Device Package：TO-99-8
- -3db Bandwidth：-
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Overview
The LF198AH is a monolithic sample and hold amplifier manufactured by Texas Instruments. It utilizes Bi-FET technology to provide high-speed analog signal processing capabilities. The device operates within an extended temperature range from -55°C to +125°C, ensuring reliability in harsh environments. It is housed in a TO-99-8 metal can package designed for through-hole mounting. This component serves as a precision circuit for capturing and maintaining analog voltage levels during conversion or transmission processes.
Feature Summary
- Monolithic integration of the complete sample and hold circuit on a single chip
- Bi-FET input stage providing low bias current and high input impedance
- Extended industrial temperature rating suitable for demanding operational conditions
Applications
- Analog-to-digital converter front-end sampling circuits
- Precision data acquisition systems requiring signal freezing
- High-speed waveform capture applications
Procurement Notes
Verify the specific suffix designation against official Texas Instruments documentation to confirm exact performance grades and packaging options. Ensure that the TO-99-8 package compatibility matches your printed circuit board layout requirements. Confirm RoHS compliance status if required by your manufacturing standards before finalizing procurement orders.
Selection Notes
Select this component when high input impedance and low charge injection are critical for signal integrity. The wide operating temperature range makes it suitable for aerospace or industrial control environments where standard commercial grade parts may fail. Evaluate the through-hole mounting requirement against available PCB space and assembly capabilities.
Part Context
This part belongs to the LF198 series of sample and hold amplifiers. It represents a specialized analog integrated circuit distinct from general-purpose operational amplifiers. The family focuses on transient signal preservation rather than continuous amplification, serving niche roles in precision measurement instrumentation.
Replacement Considerations
Consult official manufacturer substitution guides for verified equivalents. Generic op-amps cannot replicate the specific aperture delay and droop characteristics of dedicated sample and hold architectures.
