MAX3430CSA+T by Analog Devices

±80V Fault-Protected, Fail-Safe, 1/4-Unit Load, +3.3V RS-485 Transceiver


The MAX3430 fault-protected RS-485 transceiver features ±80V protection from overvoltage signal faults on communication bus lines. Each device contains one driver and one receiver, and the output pins can withstand faults, with respect to ground, of up to ±80V. Even if the faults occur when the transceiver is active, shut down, or powered off, the device will not be damaged. The MAX3430 operates from a 3.3V supply and features a slew-rate-limited driver that minimizes EMI and reduces reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The MAX3430 has a 1/4-unit-load receiver input impedance allowing up to 128 transceivers on a single bus and features fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open. Hot-swap circuitry eliminates false transitions on the data cable during circuit initialization or connection to a live backplane. Short-circuit current limiting and thermal- shutdown circuitry protect the driver against excessive power dissipation. The MAX3430 is available in 8-pin SO and 8-pin PDIP packages, and is specified over commercial and industrial temperature ranges.

Where to Buy

Prices starting from US$3.09

Distributor Stock
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Farnell
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Newark Electronics
from US$3.89
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element14
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Analog Devices
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Avnet Asia
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Features

±80V Fault Protection
±12kV ESD Protection
+3.3V Operation
Internal Slew-Rate Limiting
250kbps Data Rate
Allows Up to 128 Transceivers on the Bus
-7V to +12V Common-Mode Input Voltage Range
True Fail-Safe Inputs
Hot-Swap Input Structure on DE
Available in 8-Pin SO and PDIP Packages

Specifications

# Tx/Rx 1Tx + 1Rx
Duplex Half
VSUPPLY (V) 3.3
Data Rate (kbps) (min) 250
Fault Protect. (±V) 80
ICC (mA) (typ) 3.5
ESD Protect. (±kV) 12
Tx EN Yes
Rx EN Yes
ICC (Shutdn.) (µA) (typ) 100
Oper. Temp. (°C) -40 to +850 to +70
Package/Pins PDIP/8SOIC (N)/8
BudgetaryPrice (See Notes) 2.97


MAX3430CSA+T Maxim Integrated Parts by Analog Devices

RS422/RS485 TXRX 250KBPS 3.63V NSOIC

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The MAX3430 fault-protected RS-485 transceiver features ±80V protection from overvoltage signal faults on commu- nication bus lines. Each device contains one driver and one receiver, and the output pins can withstand faults, with respect to ground, of up to ±80V. Even if the faults occur when the transceiver is active, shut down, or pow- ered off, the device will not be damaged. The MAX3430 operates from a 3.3V supply and features a slew-rate-lim- ited driver that minimizes EMI and reduces reflections caused by improperly terminated cables, allowing error- free data transmission at data rates up to 250kbps. The MAX3430 has a 1/4-unit-load receiver input impedance allowing up to 128 transceivers on a single bus and fea- tures fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open. Hot-swap circuitry eliminates false transitions on the data cable during circuit initialization or connection to a live backplane. Short-circuit current limiting and ther- mal-shutdown circuitry protect the driver against exces- sive power dissipation. The MAX3430 is available in 8-pin SO and 8-pin PDIP packages, and is specified over commercial and indus- trial temperature ranges.

Specifications

Device Type Transceiver
IC Interface Type RS422 RS485
No. of Drivers 1Drivers
Supply Voltage Min 2.97V
Supply Voltage Max 3.63V
Driver Case Style NSOIC
No. of Pins 8Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
IC Generic Number MAX3430

Alternative Descriptions

Rs422/Rs485 Txrx, 250Kbps, 3.63V, Nsoic | Newark Electronics
RS422/RS485 TXRX, 250KBPS, 3.63V, NSOIC | element14
±80V Fault-Protected, Fail-Saf | Analog Devices
Single Transmitter/Receiver RS-485 8-Pin SOIC N T/R | Avnet Asia

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX3430CSA+T ?

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Is the MAX3430CSA+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX3430CSA+T have stock available?

Authorised distributors including Newark Electronics, element14, Farnell, Analog Devices and Avnet Asia have stock available or on a lead time for MAX3430CSA+T .

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