MAX9125

The MAX9125/MAX9126 quad low-voltage differential signaling (LVDS) line receivers are ideal for applica- tions requiring high data rates, low power, and reduced noise. The MAX9125/MAX9126 are guaranteed to receive data at speeds up to 500Mbps (250MHz) over controlled-impedance media of approximately 100 Ω.The transmission media may be printed circuit (PC) board traces or cables.  The MAX9125/MAX9126 accept four LVDS differential inputs and translate them to 3.3V CMOS outputs.

The MAX9126 features integrated parallel termination resis- tors (nominally 115Ω), which eliminate the requirementfor four discrete termination resistors and reduce stublength. The MAX9125 inputs are high impedance and require an external termination resistor when used in apoint-to-point connection.

The devices support a wide common-mode input range of 0.05V to 2.35V, allowing for ground potential differ- ences and common-mode noise between the driver and the receiver. A fail safe feature sets the output high when the inputs are open, or when the inputs are undriven and shorted or parallel terminated. The EN and  ENinputs control the high-impedance output and are common to all four receivers. Inputs conform to the ANSI TIA/EIA-644 LVDS standard. The MAX9125/ MAX9126 operate from a single +3.3V supply, are specified for operation from -40°C to +85°C, and are available in 16-pin TSSOP and SO packages. Refer to the MAX9124 data sheet for a quad LVDS line driver.