Product Summary

The MAX3430cpa fault-protected RS-485 transceiver features ±80V protection from overvoltage signal faults on communication bus lines. The device contains one driver and one receiver, and the output pins can withstand faults, with respect to ground, of up to ±80V. The MAX3430cpa 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 errorfree data transmission at data rates up to 250kbps. The MAX3430cpa 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.

Parametrics

Absolute maximum ratings: (1)VCC: +5V; (2)RE, DE, DI: -0.3V to (VCC + 0.3V); (3)Driver Output Voltage (A, B) (Note 1): ±80V; (4)Receiver Input Voltage (A, B) (Note 1): ±80V; (5)RO: -0.3V to (VCC + 0.3V); (6)Continuous Power Dissipation (TA = +70℃): 8-Pin SO (derate 5.88mW/℃ above +70℃): 471mW; 8-Pin Plastic DIP (derate 9.09mW/℃ above +70℃): 727mW; (7)Operating Temperature Ranges: MAX3430C_ _ : 0℃ to +70℃; (8)Junction Temperature: +150℃; (9)Storage Temperature Range: -65℃ to +150℃; (10)Lead Temperature (soldering, 10s): +300℃.

Features

Features:(1)±80V fault protection; (2)±12kV ESD protection; (3)+3.3V operation; (4)internal slew-rate limiting; (5)250kbps data rate; (6)allows Up to 128 transceivers on the bus; (7)-7V to +12V common-mode input voltage range; (8)true fail-safe inputs; (9)hot-swap input structure on DE; (10)available in 8-pin SO and PDIP packages.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MAX3430CPA
MAX3430CPA
Maxim Integrated Products
RS-485 Interface IC
Data Sheet
Negotiable 
MAX3430CPA+
MAX3430CPA+
Maxim Integrated Products
RS-485 Interface IC Fail-Safe 1/4-Unit 3.3V Transceiver
Data Sheet
0-1: $3.88
1-25: $2.59
25-50: $1.91
50-100: $1.87