3V RS-485/RS-422 ICs FEATURE ±15kV ESD PROTECTION FOR INTERNATIONAL COMPLIANCE
SUNNYVALE, CA—May 21, 1999—Maxim Integrated Products introduces the MAX3483E, MAX3485E, MAX3486E, MAX3488E, MAX3490E, and MAX3491E family of 3V, RS-485/RS-422 transceivers for equipment requiring compliance with international standards for electrostatic discharge (ESD) immunity. These products save space and cost by eliminating the need for TransZorbs™ and other external protection normally required to meet these ESD standards. All transmitter outputs and receiver inputs are ESD-protected to ±15kV using the Human Body Model and IEC 1000-4-2 Air-Gap Discharge method, and to ±8kV using the IEC 1000-4-2 Contact Discharge method.
Each device contains one driver and one receiver that deliver true RS-485/RS-422 performance down to VCC= 3V. The MAX3483E/MAX3488E feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at up to 250kbps. The partially slew-rate-limited MAX3486E transmits up to 2.5Mbps. The MAX3485E/MAX3490E/MAX3491E transmit at up to 12Mbps, making them ideal for high-speed industrial buses.
The MAX3488E/MAX3490E/MAX3491E feature full-duplex communication, whereas the MAX3483E/MAX3485E/MAX3486E are designed for half-duplex communication. The MAX3491E is available in 14-pin DIP and SO packages. All other devices are available in eight-pin DIP and SO packages. Prices start from $1.91 (1000-up, FOB USA).
|
