MAX14855GWE+ by Analog Devices

2.75kVRMS Isolated 500kbps/25Mbps Full-Duplex RS-485/RS-422 Transceivers with ±35kV ESD Protection and Integrated Transformer Driver

Status: Active
Series: MAX14855
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX14853/MAX14855 isolated RS-485/RS-422 transceivers provide 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. These devices allow for robust communication up to 500kbps (MAX14853) or 25Mbps (MAX14855). The MAX14853/MAX14855 include an integrated 450kHz transformer driver for power transfer to the cable-side of the transceiver using an external transformer. An integrated LDO provides a simple and space-efficient architecture for providing power to the cable-side of the IC. The MAX14853/MAX14855 include one drive channel and one receive channel. The receiver is ¼-unit load, allowing up to 128 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 cable-side or UART-side power supplies are below functional levels. The driver outputs and receiver inputs are protected from ±35kV electrostatic discharge (ESD) to GNDB on the cable-side, as specified by the Human Body Model (HBM). The MAX14853/MAX14855 are available in a wide body 16-pin SOIC package and operate over the -40°C to +105°C temperature range.

Where to Buy

Prices starting from US$8.04

Distributor Stock
Logo for Newark
Newark Electronics
from US$8.04
43
in stock
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Logo for element14 Singapore
element14
from US$8.62
43
in stock
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Logo for Farnell UK
Farnell
from US$8.42
43
in stock
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Features

Higher Integration Simplifies Designs Integrated LDO for Powering Cable-Side Integrated Transformer Driver for Power Transfer to Cable-Side
Integrated LDO for Powering Cable-Side
Integrated Transformer Driver for Power Transfer to Cable-Side
High-Performance Transceiver Enables Flexible Designs Compliant with RS-485 EIA/TIA-485 Standard 500kbps (MAX14853)/25Mbps (MAX14855) Maximum Data Rate Up to 128 Devices on the Bus Slew-Rate Limited Outputs (MAX14853) Integrated Receiver Deglitch Filter Increases Noise Immunity (MAX14853)
Compliant with RS-485 EIA/TIA-485 Standard
500kbps (MAX14853)/25Mbps (MAX14855) Maximum Data Rate
Up to 128 Devices on the Bus
Slew-Rate Limited Outputs (MAX14853)
Integrated Receiver Deglitch Filter Increases Noise Immunity (MAX14853)
Integrated Protection Ensures for Robust Communication ±35kV 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
±35kV 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 Full
VSUPPLY (V) 3.0 to 5.5
Data Rate (kbps) (min) 25000
Galvanic Isolation (±V) 2750
ICC (mA) (typ) 4.7
ESD Protect. (±kV) 35
Tx EN Yes
Rx EN Yes
Oper. Temp. (°C) -40 to +105
Package/Pins SOIC (W) HYBRID/16
BudgetaryPrice (See Notes) 4.45

Last 6 months Inventory & Pricing History

MAX14855GWE+ Semiconductors - ICs by Analog Devices

RS422/RS485 TXRX 25MBPS 5.5V WSOIC-16

Semiconductors - ICs
> Drivers & Interfaces
> RS232, RS485, RS422 Transceivers
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Device Type Transceiver
IC Interface Type RS422 RS485
No. of Drivers 1Drivers
No. of Receivers 1Receivers
Supply Voltage Min 3V
Supply Voltage Max 5.5V
Driver Case Style WSOIC
No. of Pins 16Pins
Operating Temperature Min -40°C
Operating Temperature Max 105°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
IC Generic Number MAX1485
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

Transceiver, Rs422/Rs485, Wsoic-16 | Newark Electronics
RS422/RS485 TXRX, 25MBPS, 5.5V, WSOIC-16 | element14

Frequently Asked Questions

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This part has not been flagged as RoHS Compliant.

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