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SN65LVDT41: 1.8V Version Of SN65LVDT41

Part Number: SN65LVDT41
Other Parts Discussed in Thread: SN65LVDS4, DS15BR401

Is there a similar product to SN65LVDT41 available from TI, whereby the input/output non-LVDs signals are CMOS1.8V compatible (i.e. V_IH < 1.8, V_OH < 1.8V).

In particular we wish to drive a 3 LVDS lines and receive one LVDS line running at 50MHz from a 1.8V controller. This is without the use of an additional level shifter between the controller and LVDS transceiver as this introduces unacceptable propagation delay. 

Note that the LVDS device has the following voltage characterisation (supported by SN65LVDT41).

LVDS Common Mode Level In 1.0 – 1.5 V

LVDS Differential In ±250 – ±500 mV

LVDS Common Mode Level Out 1.25 V

LVDS Differential Out (100Ω termination) ±350 mV

  • Hello Sam,

    Unfortunately, we do not have a 1.8V equivalent to SN65LVDT41.
    However, you can achieve this functionality using 2 chips. For the LVDS receiver, use SN65LVDS4 (1.8V LVDS receiver). For the 3 LVDS drivers use one of our quad LVDS buffers (such as DS15BR401) and bias the IN- of each buffer at ~0.9V using a resistor divider, and connect the 1.8V CMOS signal to IN+ input.