LTC2879XMS8E#PBF

LTC2879X is a rugged RS485/RS422 transceiver. Special processing steps are used to prevent intermetallic growth that can cause metal voids on standard parts operating at high temperatures. Low drift, low-leakage circuitry and lack of a thermal shutdown circuit allow the device to meet critical specifications, tested 100% at 175°C. It also meets the specifications for PROFIBUS-DP (IEC 61158-2) supporting all data rates from 9.6Kbps to 12Mbps. It is exceptionally robust, tolerating ±60V faults on the bus pins and protected to ±52KV ESD. This device is suitable for harsh environments or where 24V power might be inadvertently connected. Extended ±25V input common mode operating range and full failsafe operation improve data communication reliability in noisy systems. It is used in application such as oil and gas exploration, high temperature industrial control, PROFIBUS-DP, military systems, harsh environments etc.

• Protected from overvoltage line faults to ±60V
• Level 4 IEC61000-4-4 electrical fast transient
• Operates with VCC from 3V to 5.5V
• Receiver failsafe for open, shorted and terminated conditions
• Maximum driver short-circuit current is ±150mA typ
• Maximum data rate is 20Mbps minimum at (t TA = 25°C, VCC = 5V)
• Supply current in shutdown mode is 50µA max at (DE = 0V, RE = VCC, DI = VCC)
• Operating temperature is -55°C to 175°C
• Package style is 8-lead plastic MSOP

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