MAX9158

Vcc, AVcc to GND................................................-0.3V to +4.0V
DO_+/RIN_+, DO_-/RIN_- to GND .......................-0.3V to +4.0V
DIN_, DE_, RE_ to GND........................................-0.3V to +4.0V
RO_ to GND...............................................-0.3V to (VCC + 0.3V)
AGND to GND .......................................................-0.3V to +0.3V
Short-Circuit Duration (DO_+/RIN_+, DO_-/RIN_-) ...Continuous
Continuous Power Dissipation (TA = +70°C)
44-Lead QFN (derate 24.3mW/°C above +70°C) .......2105mW
Storage Temperature Range .........................-65°C to +150°C
Maximum Junction Temperature ....................................+150°C
Operating Temperature Range ........................-40°C to +85°C
ESD Protection
Human Body Model (DO_+/RIN_+, DO_-/RIN_-)..................±4kV
Lead Temperature (soldering, 10s) ...............................+300°C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.  hese are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

The MAX9158 is a quad bus LVDS (BLVDS) transceiver for heavily loaded, half-duplex multipoint buses. A 44- lead QFN package and flow-through pinout allow the transceiver to be placed near the connector. The MAX9158 drives LVDS levels into a 27 load (double terminated, heavily loaded LVDS bus) at up to 200Mbps. An input fail-safe circuit ensures the receiver output is high when the differential inputs are open, or undriven and shorted, or undriven and terminated. The MAX9158 operates from a single 3.3V supply, consuming 77mA supply current with drivers enabled, and 19.9mA with drivers disabled.

The MAX9158's high-impedance I/Os (except for receiver outputs) when Vcc = 0V or open, combined with glitchfree power-up and power-down, allow hot swapping of cards in multicard bus systems; 7.3pF (max) BLVDS I/O capacitance minimizes bus loading.

The MAX9158 is offered in a 7mm x 7mm 44-lead QFN package, and is fully specified for the -40°C to +85°C extended temperature range. Refer to the MAX9157 data sheet for a quad BLVDS transceiver with hysteresis in 32- lead QFN and TQFP packages. Refer to the MAX9129 data sheet for a quad BLVDS driver, ideal for dual multipoint full-duplex buses.