LTC1393 - Single-Ended 8-Channel/ Differential 4-Channel Analog Multiplexer with SMBus Interface


  • Micropower Operation: Supply Current = 20µA Max
  • 2-Wire SMBus Interface
  • Single 2.7V to ±5V Supply Operation
  • Expandable to 32 Single or 16 Differential Channels
  • Guaranteed Break-Before-Make
  • Low RON: 35ohms Single Ended/70ohms Differential
  • Low Charge Injection: 20pC Max
  • Low Leakage: ±5nA Max
  • Available in 16-Lead SO and GN Packages

Typical Application

LTC1393 Typical Application
LTC1393 Typical Application


The LTC®1380/LTC1393 are CMOS analog multiplexers with SMBus® compatible digital interfaces. The LTC1380 is a single-ended 8-channel multiplexer, while the LTC1393 is a differential 4-channel multiplexer. The SMBus digital interface requires only two wires (SCL and SDA). Both the LTC1380 and the LTC1393 have four hard-wired SMBus addresses, selectable with two external address pins. This allows four devices, each with a unique SMBus address, to coexist on one system and for four devices to be synchronized with one stop bit. The supply current is typically 10µA. Both digital interface pins are SMBus compatible over the full operating supply voltage range. The LTC1380 analog switches feature a typical RON of 35ohms (±5V supplies), typical switch leakage of 20pA and guaranteed break-before-make operation. Charge injection is ±1pC typical. The LTC1380/LTC1393 are available in 16-lead SO and GN packages. Operation is fully specified over the commercial and industrial temperature ranges.


CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
LTC1393CGN#PBF SSOP-16 GN C 05-08-1641 (GN16) Yes
LTC1393CGN#TRPBF SO-16 S C 05-08-1610 (S16) Yes
LTC1393CS#PBF SO-16 S C 05-08-1610 (S16) Yes
LTC1393CS#TRPBF SO-16 S C 05-08-1610 (S16) Yes
LTC1393IGN#PBF SSOP-16 GN I 05-08-1641 (GN16) Yes
LTC1393IGN#TRPBF SSOP-16 GN I 05-08-1641 (GN16) Yes
LTC1393IS#PBF SO-16 S I 05-08-1610 (S16) Yes
LTC1393IS#TRPBF SO-16 S I 05-08-1610 (S16) Yes

LTC1393 Package Drawing
LTC1393 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
LTC1393CGN#PBF SSOP-16 C $3.80 $3.15 Yes
LTC1393CGN#TRPBF SO-16 C $3.21 Yes
LTC1393CS#PBF SO-16 C $3.45 $2.95 Yes
LTC1393CS#TRPBF SO-16 C $3.01 Yes
LTC1393IGN#PBF SSOP-16 I $4.40 $3.65 Yes
LTC1393IGN#TRPBF SSOP-16 I $3.71 Yes
LTC1393IS#PBF SO-16 I $4.05 $3.30 Yes
LTC1393IS#TRPBF SO-16 I $3.36 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

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Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

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