| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| LF398AN/NOPB | Texas Instruments | $1.5828 | Sample and Hold Circuit, 1 Func, Sample, 20us Acquisition Time, PDIP8 | LF398N vs LF398AN/NOPB |
| LF398N8 | Linear Technology | Check for Price | Sample and Hold Circuit, 1 Func, Sample, 16us Acquisition Time, BIPolar, PDIP8 | LF398N vs LF398N8 |
| LF298N | NXP Semiconductors | Check for Price | Sample and Hold Circuit, 1 Func, Sample, 20us Acquisition Time, BIFET, PDIP8 | LF398N vs LF298N |
| LF398N8#PBF | Linear Technology | Check for Price | Sample and Hold Circuit, 1 Func, Sample, 16us Acquisition Time, BIPolar, PDIP8 | LF398N vs LF398N8#PBF |
| LF398AN/NOPB | Rochester Electronics LLC | Check for Price | SAMPLE AND HOLD AMPLIFIER, 20 us ACQUISITION TIME, PDIP8, ROHS COMPLIANT, DIP-8 | LF398N vs LF398AN/NOPB |
| LF398N | NXP Semiconductors | Check for Price | Sample and Hold Circuit, 1 Func, Sample, 20us Acquisition Time, JFET, PDIP8 | LF398N vs LF398N |
| LF398JG | Texas Instruments | Check for Price | Sample and Hold Circuit, 1 Func, Sample, 4us Acquisition Time, BIFET, CDIP8 | LF398N vs LF398JG |
| LF398AN | Texas Instruments | Check for Price | Sample and Hold Circuit, 1 Func, Sample, 20us Acquisition Time, BIPolar, PDIP8 | LF398N vs LF398AN |
Part Details for LF398N by Texas Instruments
Results Overview of LF398N by Texas Instruments
- Distributor Offerings: (3 listings)
- Number of FFF Equivalents: (8 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Available)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LF398N Information
LF398N by Texas Instruments is a Sample and Hold Circuit.
Sample and Hold Circuits are under the broader part category of Amplifier Circuits.
Amplifier circuits use external power to increase the amplitude of an input signal. They can be used to perform linear amplifications or logarithmic functions. Read more about Amplifier Circuits on our Amplifier Circuits part category page.
Price & Stock for LF398N
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
LF398N-ND
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DigiKey | IC OP AMP 1CH 8-PDIP Container: Tube |
0 Tube |
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Buy Now | |
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Quest Components | IC,SAMPLE/TRACK-AND-HOLD AMPLIFIER,SINGLE,BIPOLAR/JFET,DIP,8PIN,PLASTIC | 8 |
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$9.5520 / $14.3280 | Buy Now |
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Chip Stock | Non-RoHS Compliant EAR99 LF398 Tin/Lead (Sn/Pb) op amp amplifier circuit 9.27mm 10nA 15V 1MHz | 9500 |
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RFQ |
US Tariff Estimator: LF398N by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
LF398N CAD Models
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LF398N Part Data Attributes
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LF398N
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
LF398N
Texas Instruments
Sample and Hold Circuit, 1 Func, Sample, 20us Acquisition Time, BIPolar, PDIP8
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| Pbfree Code | No | |
| Part Life Cycle Code | Obsolete | |
| Part Package Code | DIP | |
| Package Description | Dip-8 | |
| Pin Count | 8 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.33.00.01 | |
| Acquisition Time-Max | 25 µS | |
| Acquisition Time-Nom | 20 µS | |
| Amplifier Type | Sample And Hold Circuit | |
| Analog Input Voltage-Max | 11.5 V | |
| Analog Input Voltage-Min | -11.5 V | |
| JESD-30 Code | R-PDIP-T8 | |
| JESD-609 Code | e0 | |
| Length | 9.817 Mm | |
| Moisture Sensitivity Level | 1 | |
| Neg Supply Voltage Limit-Max | -18 V | |
| Neg Supply Voltage-Nom (Vsup) | -15 V | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Package Body Material | Plastic/Epoxy | |
| Package Code | DIP | |
| Package Equivalence Code | DIP8,.3 | |
| Package Shape | Rectangular | |
| Package Style | In-Line | |
| Qualification Status | Not Qualified | |
| Sample and Hold / Track and Hold | Sample | |
| Seated Height-Max | 5.08 Mm | |
| Supply Current-Max | 6.5 Ma | |
| Supply Voltage Limit-Max | 18 V | |
| Supply Voltage-Nom (Vsup) | 15 V | |
| Surface Mount | No | |
| Technology | Bipolar | |
| Temperature Grade | Commercial | |
| Terminal Finish | Tin Lead | |
| Terminal Form | Through-Hole | |
| Terminal Pitch | 2.54 Mm | |
| Terminal Position | Dual | |
| Width | 7.62 Mm |
Alternate Parts for LF398N
This table gives cross-reference parts and alternative options found for LF398N. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LF398N, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
LF398N Frequently Asked Questions (FAQ)
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The maximum power dissipation of the LF398N is 670mW, which is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (θJA) of 125°C/W.
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While the LF398N can be used as a comparator, it's not the best choice due to its relatively slow slew rate (0.5V/μs) and limited bandwidth (1.3MHz). A dedicated comparator like the LM339 or LM2901 would be a better option.
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To ensure stability, make sure to follow proper compensation techniques, such as adding a capacitor in the feedback loop or using a resistor in series with the feedback capacitor. Additionally, ensure that the gain and phase margins are sufficient to prevent oscillations.
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The input impedance of the LF398N is typically around 2MΩ, but it can vary depending on the specific application and operating conditions. This is relatively high, making it suitable for high-impedance sources.
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Yes, the LF398N can be used in a single-supply configuration, but you'll need to ensure that the input common-mode voltage is within the specified range (VCC- to VCC+). You may also need to add external resistors to set the output voltage to the desired level.