MAX14778
Dual ±25V Above- and Below-the-Rails 4:1 Analog Multiplexer
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Simplify Designs with the Industry's First ±25V Above- and Below-the-Rails Multiplexer
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Features
- Wide Signal Range Supported from Single-Supply Voltage Eliminates Negative Power Supply
- ±25V Signal Range
- Single 3.0V to 5.5V Supply
- Two Independent Multiplexers
- Break-Before-Make Operation
- 1.5Ω RON (max)
- 3mΩRON Flatness (typ)
- 300mA Maximum Current Through Multiplexer
- 78pF Input Capacitance
- 75MHz Large-Signal Bandwidth
- 20-Pin TQFN (5mm x 5mm) Package
- Extended ESD Protection on A_ and B_ Pins
- ±6kV Human Body Model (HBM)
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The MAX14778 dual 4:1 analog multiplexer supports analog signals up to ±25V with a single 3.0 to 5.5V supply. Each multiplexer has separate control inputs to allow independent switching, making the device ideal for multiplexing different communications signals with the same connector pins. Extended ESD protection of ±6kV (Human Body Model) enable direct interfacing to cables and connectors.
The MAX14778 features a low 1.5Ω (max) on-resistance and 3mΩ (typ) flatness to maximize signal integrity over the entire common-mode voltage range. Each multiplexer can carry up to 300mA of continuous current through the multiplexer in either direction.
The MAX14778 supports switching of full-speed USB 1.1 signals (12Mbps) and RS-485 data rates of up to 20Mbps.
The MAX14778 is available in a 20-pin (5mm x 5mm) TQFN package and is specified over the -40°C to +125°C extended temperature range.
Applications
- Audio/Data Multiplexing
- Communication Systems
- Connector Sharing
- Gaming Machines
- Handheld Industrial Devices
- POS Peripherals
- RS-485/RS-232/USB 1.1 Multiplexing
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
Search
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Support
Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
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MAX14778
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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
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| MAX14778ATP+ |
20-LFCSP-5X5X0.75
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| MAX14778ATP+T |
20-LFCSP-5X5X0.75
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| MAX14778ETP+ |
20-LFCSP-5X5X0.75
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| MAX14778ETP+T |
20-LFCSP-5X5X0.75
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- MAX14778ATP+
- Pin/Package Drawing
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20-LFCSP-5X5X0.75
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- MAX14778ATP+T
- Pin/Package Drawing
-
20-LFCSP-5X5X0.75
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
- MAX14778ETP+
- Pin/Package Drawing
-
20-LFCSP-5X5X0.75
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- MAX14778ETP+T
- Pin/Package Drawing
-
20-LFCSP-5X5X0.75
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
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Part Models
Product Lifecycle
PCN
Oct 11, 2013
- 1345
ASSEMBLY
MAX14778ETP+
PRODUCTION
MAX14778ETP+T
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Oct 11, 2013
- 1345
ASSEMBLY
Software & Part Ecosystem
Evaluation Kits 1
MAX14778EVKIT
Evaluation Kit for the MAX14778
Product Detail
The MAX14778 evaluation kit (EV kit) provides a proven design to evaluate the MAX14778 dual ±25V above- and below-the-rails 4:1 analog multiplexer. The EV kit operates from a single +3V to +5.5V supply and supports analog signals between -25V and +25V.
The EV kit PCB comes with a MAX14778ETP+ installed. Contact the factory for free samples.
Applications
- Audio/Data Multiplexing
- Communication Systems
- Connector Sharing
- Gaming Machines
- Handheld Industrial Devices
- POS Peripherals
- RS-485/RS-232/USB 1.1 Multiplexing
Resources
Evaluation Kits1
Tools & Simulations 1
IBIS Model 1
IBIS Model