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Texas Instruments TXG402x ±40V Ground-Level Translator

Texas Instruments TXG402x ±40V Ground-Level Translator is a 2-bit, fixed-direction, non-galvanic-based voltage and ground-level translator that supports both logic-level shifting between 1.71V and 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.

VCCA is referenced to GNDA, and VCCB is referenced to GNDB. The Ax pins are referenced to the VCCA logic level, while the Bx pins are referenced to the VCCB logic level. 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 Texas Instruments TXG402x devices enhance power sequencing and noise immunity across different ground domains, while providing low power consumption, reduced latency, and minimized channel-to-channel skew. It can suppress noise levels of 80VPP up to 5MHz. These devices support multiple interfaces, including UART, GPIO, and JTAG.

Features

  • Supports DC shifts up to ±40V
  • AC noise rejection of 80VPP up to 5MHz
  • CMTI of 1kV/µs
  • Low propagation delay (< 5ns) and channel-to-channel skew (< 0.20ns)
  • Greater than 250Mbps
  • Low power consumption (0.8mA per channel at 1Mbps, 1.8V)
  • Fully configurable dual-rail design allows each port to operate from 1.71V to 5.5V
  • Four, two, or one-channel devices with multiple configurations will be available
  • Two device variants
    • TXG4020: two forward
    • TXG4021: one forward, one 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
    • 2500V human-body model
    • 500V charged-device model
  • Package options provided
    • DSG (WSON-8)
    • DDF (SOT-8)
    • D (SOIC-8)

Applications

  • Test and measurement
  • Industrial automation
  • Appliances
  • Robotics
  • Avionics

Functional Block Diagram

Block Diagram - Texas Instruments TXG402x ±40V Ground-Level Translator

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 Moreabout Texas Instruments 14-24-LOGIC-EVM Logic Evaluation Module (EVM) View Productsrelated to Texas Instruments 14-24-LOGIC-EVM Logic Evaluation Module (EVM)
Published: 2025-09-29 | Updated: 2025-12-17