LF13331N Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The LF13331N is a quad SPST analog switch IC from Texas Instruments in a 16-pin DIP package. It operates from ±15V dual supplies and provides 4 independent channels with 50dB off-state isolation. Suited for precision signal routing in audio, instrumentation, and data acquisition systems.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- LF13331N Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Non-compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LF13331N?
- Quad SPST configuration with 4 independent switch channels in a single 16-pin DIP package
- 50dB off-state isolation ensures minimal signal crosstalk in sensitive analog signal paths
- Operates from ±15V dual supplies, compatible with standard op-amp and instrumentation supply rails
- Low on-resistance for minimal signal attenuation in precision measurement and audio routing applications
What is LF13331N used for?
The LF13331N is used in precision instrumentation front-ends, audio mixing consoles, and data acquisition systems that require low-crosstalk analog signal switching. Its ±15V supply compatibility allows direct integration with bipolar op-amp circuits and traditional analog signal chains without level-shifting. The quad channel arrangement enables multiplexing up to 4 analog inputs to a single output in sensor scanning or channel selection applications.
What are the specifications of LF13331N?
| Reach Compliance Code | Unknown |
| YTEOL | 0 |
| Analog IC - Other Type | SPST |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e0 |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Normal Position | NO |
| Number of Channels | 1 |
| Number of Functions | 4 |
| Off-state Isolation-Nom | 50dB |
| On-state Resistance Match-Nom | 10Ω |
| On-state Resistance-Max (Ron) | 250Ω |
| Output | SEPARATE OUTPUT |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 13.5mA |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | NO |
| Switching | BREAK-BEFORE-MAKE |
| Technology | BIMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | TIN LEAD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Non-compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the LF13331N datasheet?
LF13331N Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LF13331N?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many independent switch channels does the LF13331N provide and what is the switch topology?
The LF13331N contains 4 independent SPST (single-pole single-throw) analog switch channels in a 16-pin DIP package. Each channel can be independently opened or closed under digital logic control, allowing 4 separate analog signals to be switched simultaneously or individually in multiplexer, demultiplexer, or signal-routing configurations within the same IC.
What supply voltage does the LF13331N require, and which system power rails are compatible?
The LF13331N operates from a dual ±15V supply, which is the standard rail voltage for classic precision op-amp and instrumentation amplifier circuits. This makes it directly compatible with 15V benchtop instrument power supplies, analog front-end boards, and legacy industrial measurement equipment without additional supply conversion or level translation circuitry.
What off-state isolation does the LF13331N offer, and when is 50dB sufficient for a design?
The LF13331N specifies 50dB off-state isolation between open-switch signal and output. For audio applications below 20kHz and instrumentation signals in the low-MHz range, 50dB isolation is typically sufficient to prevent crosstalk from affecting signal quality by more than a few millivolts, meeting the performance requirements of general-purpose test equipment and audio mixers at standard audio frequencies.
Can the LF13331N be substituted with a surface-mount alternative for new high-density PCB designs?
The LF13331N is only available in a through-hole 16-pin DIP package, which limits use in modern surface-mount designs. For new layouts, designers typically migrate to equivalent SOIC-16 or TSSOP-16 analog switch ICs such as the CD4066B or newer CMOS switch families, which offer the same 4-channel SPST function in SMD packages compatible with automated assembly and densely populated boards.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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