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Product Detailed Parameters
- Description：IC SAMPL/HOLD 1 CIRCUIT 14SOIC
- 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：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：-25°C ~ 85°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：14-SOIC
- -3db Bandwidth：-
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Overview
The LF298M/NOPB is a monolithic sample-and-hold circuit manufactured by Texas Instruments. It belongs to the LFx98 family, which includes the LF198 and LF398 variants. The device features an internal hold capacitor and is designed for high-speed data acquisition applications. It operates within a supply voltage range of ±5V to ±15V. The component is available in a 14-pin SOIC package.
Feature Summary
- Monolithic integration of sampling switch, amplifier, and hold capacitor
- High-speed acquisition capability with low droop rate
- Compatible with standard logic families for control signals
Applications
- Analog-to-digital converter front-ends
- Pulse width modulation systems
- Fast Fourier transform circuits
Procurement Notes
Verify the specific datasheet revision for the LF298M/NOPB to ensure compatibility with your system requirements. Confirm that the operating temperature range meets your environmental specifications. Check for any lead-free or RoHS compliance markings on the packaging documentation provided by the supplier.
Selection Notes
Select this component when a dedicated sample-and-hold function is required without external discrete components. Consider the LF298M/NOPB over operational amplifiers if aperture delay and droop performance are critical. Ensure the input signal amplitude stays within the specified common-mode range for accurate sampling.
Part Context
This part is part of the LFx98 series of monolithic sample-and-hold circuits. It shares functional similarities with the LF198 and LF398 but may differ in specific electrical characteristics such as offset voltage or bandwidth. The 'M' suffix indicates the SOIC package type, while 'NOPB' denotes a lead-free and rohs-compliant version.
Replacement Considerations
Direct replacements include the LF198M/NOPB and LF398M/NOPB from Texas Instruments. Verify pinout compatibility and electrical parameter differences before substitution. Other manufacturers may offer equivalent parts, but functional testing is recommended.
