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Texas Instruments TXG404x Ground-Level Translators

Texas Instruments TXG404x Ground-Level Translators are 4-bit, fixed-direction, non-galvanic-based voltage and ground-level translators that support both logic-level shifting between 1.71V and 5.5V and ground-level shifting up to ±40V. Compared to traditional level shifters, the TXG404x family solves the challenges of voltage translation across different ground levels.

VCCB is referenced to GNDB, and VCCA is referenced to GNDA. Bx pins are referenced to VCCB logic levels, while Ax pins are referenced to VCCA logic levels. Both A port and B port accept voltages from 1.71V to 5.5V. This device includes two enable pins that can place the respective outputs in a high-impedance state when the OE pin is connected to GND or left floating. The output is default low when OE is high in the event of input power or signal loss. The leakage between GNDA and GNDB is < 45nA when VCC to GND is shorted.

The Texas Instruments TXG404x device enhances power sequencing and noise immunity across different ground domains, while providing low power consumption, reduced latency, and minimized channel-to-channel skew. The device suppresses noise levels of 80VPP up to 5MHz. The TXG404x can support multiple interfaces, including SPI, UART, GPIO, and I2S.

Features

  • Supports DC ground shifts up to 40V
  • AC noise rejection of 80VPP up to 5MHz
  • CMTI of 1kV/µs
  • Low prop delay (< 5ns) and channel-to-channel skew (0.35ns)
  • Greater than 250Mbps
  • Low power consumption (0.65mA per channel at 1Mbps, 1.8V)
  • Fully configurable dual-rail design allows each port to operate from 1.71V to 5.5V
  • Four, two, and one-channel devices are available
  • Two device variants
    • TXG4041: three forward, one reverse
    • TXG4042: two forward, two reverse
  • Supports VCC disconnect feature (I/Os are forced into high-Z)
  • Schmitt-trigger inputs allow for slow and noisy signals
  • Inputs with integrated static pull-down resistors prevent channels from floating
  • Operating temperature from –40°C to +125°C
  • Latch-up performance exceeds 100mA per JESD 78, class II
  • ESD protection exceeds JESD 22
    • 4000V human-body model
    • 500V charged-device model
  • Package options provided
    • RUC (X2QFN-14)
    • DYY (SOT-14)
    • DBQ (QSOP-16)

Applications

  • Test and measurement
  • Industrial automation
  • Appliances
  • Robotics
  • Energy storage systems

Functional Block Diagrams

Block Diagram - Texas Instruments TXG404x Ground-Level Translators

Development Tool

Texas Instruments 14-24-LOGIC-EVM Logic Evaluation Module (EVM)

Generic evaluation module developed to support any TI logic leaded device in a 14 to 24 pin count.

Learn Moreo Texas Instruments 14-24-LOGIC-EVM Logic Evaluation Module (EVM) View Productspowiązany z Texas Instruments 14-24-LOGIC-EVM Logic Evaluation Module (EVM)
Opublikowano: 2025-12-12 | Zaktualizowano: 2025-12-24