±40V, 2-bit fixed direction ground level translators, 2/0 configuration

The TXG402x is a

2-bit, fixed direction, non-galvanic based voltage

and ground-level translator that can support both logic-level shifting between 1.71V

to 5.5V and ground-level shifting up to ±40V. Compared to

traditional level shifters, the TXG402x family can

solve the challenges of voltage translation across different ground levels. The

Simplified Diagram shows a common use case where DC shift occurs between GNDA to GNDB due to

parasitic resistance or capacitance.

VCCA is referenced to GNDA and

VCCB is referenced to GNDB. Ax pins are referenced to VCCA

logic level while Bx pins are referenced to VCCB logic levels. Both A

port and B port can accept voltages from 1.71V to 5.5V. The leakage between GNDA and

GNDB is <90nA when VCC to GND is shorted.

The TXG402x device

helps improve noise immunity and power sequencing across different ground domains

while providing low power consumption, latency and channel-to-channel skew. It can

supress noise levels of 80VPP up to 5MHz (Figure 7-5). This device can support multiple interfaces such as UART, GPIO, and JTAG.