LTC1390 - 8-Channel Analog Multiplexer with Serial Interface
Features
- 3-Wire Serial Digital Interface
- Data Retransmission Allows Series Connection with Serial A/D Converters
- Single 3V to ±5V Supply Operation
- Analog Inputs May Extend to Supply Rails
- Low Charge Injection
- Low RON: 75 Ohm Max
- Low Leakage: ±5nA Max
- Guaranteed Break-Before-Make
- TTL/CMOS Compatible for All Digital Inputs
- Cascadable to Allow Additional Channels
- Can be used as a Demultiplexer
Typical Application
Description
The LTC®1390 is a high performance CMOS 8-to-1 analog multiplexer. It features a 3-wire digital interface with a bidirectional data retransmission feature, allowing it to be wired in series with a serial A/D converter while using only one serial port. The interface also allows several LTC1390s to be wired in series or parallel, increasing the number of MUX channels available using only a single digital port. All the above features are also valid when LTC1390 operates as a demultiplexer such as with a D/A converter.
The LTC1390 features a typical RON of 45 Ohm, typical switch leakage of 50pA, and guaranteed break-before-make operation. Charge injection is ±10pC maximum. All digital inputs are TTL and CMOS compatible when operated from single or dual supplies. The inputs can withstand 100mA fault currents.
The LTC1390 is available in 16-pin PDIP and narrow SO packages.
Packaging
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 Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC1390CN#PBF | N-16 | N | C | 05-08-1510 (N16) | Yes |
| LTC1390CS#PBF | SO-16 | S | C | 05-08-1610 (S16) | Yes |
| LTC1390CS#TRPBF | SO-16 | S | C | 05-08-1610 (S16) | Yes |
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 (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC1390CN#PBF | N-16 | C | $2.90 | $2.30 | Yes | |
| LTC1390CS#PBF | SO-16 | C | $3.10 | $2.40 | Yes | |
| LTC1390CS#TRPBF | SO-16 | C | $2.46 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
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.Click here to view our complete list of demo boards
Applications
- Data Acquisition Systems
- Communication Systems
- Signal Multiplexing/Demultiplexing
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Design Tools
Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:
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- And More!
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
