MAX14945EWE+ by Analog Devices

2.75kVRMS Isolated 500kbps Half-Duplex RS-485/RS-422 Transceiver with ±30kV ESD Protection

Status: Active
Series: MAX14945
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX14945 isolated RS-485/RS-422 transceiver provides 2750VRMS (60s) of galvanic isolation between the cable side (RS-485/RS-422 driver/receiver side) and the UART side of the device. Isolation improves communication by breaking ground loops and reduces noise when there are large differences in ground potential between ports. Signals are passed across the isolation barrier through integrated high-voltage capacitors. This device allows for robust communication at any speed up to 500kbps. The device includes one half-duplex drive/receive channel. The receiver is 1/8-unit load, allowing up to 256 transceivers on a common bus. Integrated true fail-safe circuitry ensures a logic-high on the receiver output when inputs are shorted or open. Undervoltage lockout disables the driver when the cable side or UART side power supplies are below functional levels. The driver outputs/receiver inputs are protected from ±30kV electrostatic discharge (ESD) to GNDB on the cable side, as specified by the Human Body Model (HBM). The MAX14945 is available in a wide body 16-pin SO package and operates over the -40°C to +85°C temperature range.

Where to Buy

Prices starting from US$6.58

Distributor Stock
Logo for Newark
Newark Electronics
from US$6.58
101
in stock
 Buy Now
Logo for element14 Singapore
element14
from US$7.05
101
in stock
 Buy Now
Logo for Farnell UK
Farnell
from US$6.62
101
in stock
 Buy Now
Buy Now

Features

High-Performance Transceiver Enables Flexible Designs Integrated LDO for Cable-Side Power Compliant with RS-485 EIA/TIA-485 Standard 500kbps Maximum Data Rate Allows Up to 256 Devices on the Bus
Integrated LDO for Cable-Side Power
Compliant with RS-485 EIA/TIA-485 Standard
500kbps Maximum Data Rate
Allows Up to 256 Devices on the Bus
Integrated Protection Ensures Robust Communication ±30kV ESD (HBM) on Driver Outputs/Receiver Inputs 2.75kVRMS Withstand-Isolation Voltage for 60s (VISO) 630VPEAK Maximum Repetitive Peak-Isolation Voltage (VIORM) 445VRMS Maximum Working-Isolation Voltage (VIOWM) > 30 Years Lifetime at Rated Working Voltage Withstands ±10kV Surge per IEC 61000-4-5 Thermal Shutdown
±30kV ESD (HBM) on Driver Outputs/Receiver Inputs
2.75kVRMS Withstand-Isolation Voltage for 60s (VISO)
630VPEAK Maximum Repetitive Peak-Isolation Voltage (VIORM)
445VRMS Maximum Working-Isolation Voltage (VIOWM)
> 30 Years Lifetime at Rated Working Voltage
Withstands ±10kV Surge per IEC 61000-4-5
Thermal Shutdown

Specifications

# Tx/Rx 1Tx + 1Rx
Duplex Half
VSUPPLY (V) 5
Data Rate (kbps) (min) 500
Galvanic Isolation (±V) 2750
ICC (mA) (typ) 4
ESD Protect. (±kV) 35
Tx EN Yes
Rx EN Yes
Oper. Temp. (°C) -40 to +85
Package/Pins SOIC (W) HYBRID/16
BudgetaryPrice (See Notes) 3.62

Last 6 months Inventory & Pricing History

MAX14945EWE+ Semiconductors - ICs by Analog Devices

RS422/RS485 TXRX 500KBPS 5.5V WSOIC16

Semiconductors - ICs
> Drivers & Interfaces
> RS232, RS485, RS422 Isolated Transceivers
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX14945 isolated RS-485/RS-422 transceiver provides 2750VRMS (60s) of galvanic isolation between the cable side (RS-485/RS-422 driver/receiver side) and the UART side of the device. Isolation improves communication by breaking ground loops and reduces noise when there are large differences in ground potential between ports. Signals are passed across the isolation barrier through integrated high-voltage capacitors. This device allows for robust communication at any speed up to 500kbps. The device includes one half-duplex drive/receive channel. The receiver is 1/8-unit load, allowing up to 256 transceivers on a common bus. Integrated true fail-safe circuitry ensures a logic-high on the receiveroutputwheninputsareshortedoropen.Undervoltage lockout disables the driver when the cable side or UART side power supplies are below functional levels. The driver outputs/receiver inputs are protected from ±30kV electrostatic discharge (ESD) to GNDB on the cable side, as specified by the Human Body Model (HBM). The MAX14945 is available in a wide body 16-pin SO package and operates over the -40°C to +85°C temperature range.

Specifications

Device Type Transceiver
IC Interface Type RS422 RS485
No. of Drivers 1Drivers
No. of Receivers 1Receivers
Supply Voltage Min 1.71V
Supply Voltage Max 5.5V
Driver Case Style WSOIC
No. of Pins 16Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
IC Generic Number MAX14945
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

Rs422/Rs485 Txrx, 500Kbps, 5.5V, Wsoic16 | Newark Electronics
RS422/RS485 TXRX, 500KBPS, 5.5V, WSOIC16 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX14945EWE+ ?

Additional datasheets, footprints and schematics for MAX14945EWE+ are listed on our Part Details page. You can also find images and similar parts to MAX14945EWE+ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX14945EWE+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX14945EWE+ price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the MAX14945EWE+ you can contact the distributor directly for product support, shipping queries etc.

Is the MAX14945EWE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX14945EWE+ have stock available?

Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX14945EWE+ .

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for MAX14945EWE+ often in real-time on the comparison pages.

What if I can't find stock of MAX14945EWE+ ?

You can fill out our help required form which you can use to request a quote for MAX14945EWE+ from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.