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Amplifier Circuits / Sample and Hold Circuits / LF398AN
Datasheets
LF398AN by:
Texas Instruments
Analog Devices Inc
Linear Technology
National Semiconductor Corporation
Rochester Electronics LLC
Texas Instruments
Not Found

SAMPLE AND HOLD AMPLIFIER, 20us ACQUISITION TIME, PDIP8, DIP-8

Part Details for LF398AN by Texas Instruments

Results Overview of LF398AN by Texas Instruments

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.

LF398AN Information

LF398AN 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.

Part Details for LF398AN

LF398AN CAD Models

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LF398AN Part Data Attributes

Parametric Data
LF398AN Texas Instruments
Buy Now Datasheet
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LF398AN Texas Instruments SAMPLE AND HOLD AMPLIFIER, 20us ACQUISITION TIME, PDIP8, DIP-8
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Pbfree Code No
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code DIP
Package Description DIP-8
Pin Count 8
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.33.00.01
Samacsys Manufacturer Texas Instruments
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 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 LF398AN

This table gives cross-reference parts and alternative options found for LF398AN. 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 LF398AN, 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.

Part Number Manufacturer Composite Price Description Compare
LF298N NXP Semiconductors Check for Price IC SAMPLE AND HOLD AMPLIFIER, 20 us ACQUISITION TIME, PDIP8, 0.300 INCH, PLASTIC, DIP-8, Sample and Hold Circuit LF398AN vs LF298N
LF398N Texas Instruments Check for Price SAMPLE AND HOLD AMPLIFIER, 20us ACQUISITION TIME, PDIP8, DIP-8 LF398AN vs LF398N
LF398N8 Linear Technology Check for Price IC SAMPLE AND HOLD AMPLIFIER, 16 us ACQUISITION TIME, PDIP8, PLASTIC, DIP-8, Sample and Hold Circuit LF398AN vs LF398N8
LF398N NXP Semiconductors Check for Price IC SAMPLE AND HOLD AMPLIFIER, 20 us ACQUISITION TIME, PDIP8, 0.300 INCH, PLASTIC, MO-001, SC-504-T, SOT97-1, DIP-8, Sample and Hold Circuit LF398AN vs LF398N
LF398AN/NOPB National Semiconductor Corporation Check for Price IC SAMPLE AND HOLD AMPLIFIER, 20 us ACQUISITION TIME, PDIP8, ROHS COMPLIANT, DIP-8, Sample and Hold Circuit LF398AN vs LF398AN/NOPB
LF398N/NOPB Texas Instruments $1.3501 Monolithic sample and hold circuit (10-µs acquisition, 7-mV offset) 8-PDIP 0 to 70 LF398AN vs LF398N/NOPB
LF398N8#PBF Analog Devices Inc $3.5983 Precision Sample and Hold Amplifier in DIP8 Package LF398AN vs LF398N8#PBF
LF398AN/NOPB Rochester Electronics LLC Check for Price SAMPLE AND HOLD AMPLIFIER, 20 us ACQUISITION TIME, PDIP8, ROHS COMPLIANT, DIP-8 LF398AN vs LF398AN/NOPB
Part Number Manufacturer Composite Price Description Compare
LF398AN/NOPB Texas Instruments $1.3790 Monolithic sample and hold circuit (10-µs acquisition, 7-mV offset) 8-PDIP 0 to 70 LF398AN vs LF398AN/NOPB

LF398AN Related Parts

LF398AN Frequently Asked Questions (FAQ)

  • The maximum power dissipation of the LF398AN is 670mW, which is calculated based on the maximum junction temperature (150°C) and the thermal resistance from junction to ambient (125°C/W).

  • While the LF398AN 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 (1.5MHz). A dedicated comparator like the LM339 or LM2901 would be a better option.

  • To ensure stability, make sure to follow proper PCB layout practices, use a low-ESR capacitor for decoupling, and avoid high-gain configurations. Additionally, consider adding a compensation capacitor (e.g., 10pF to 100pF) between the output and the inverting input to improve stability.

  • The input impedance of the LF398AN is typically around 1MΩ, but it can vary depending on the specific application and operating conditions. This is relatively high compared to other op-amps, making it suitable for high-impedance sources.

  • Yes, the LF398AN can be used in a single-supply configuration, but it's essential to ensure that the input common-mode voltage range is within the specified limits (VCC- to VCC+). Additionally, consider using a voltage divider or level-shifter to bias the input signals.