TDC1000-Q1

The TDC1000-Q1 is a highly integrated time-to-digital converter (TDC) designed for precision measurement of time intervals in automotive and industrial applications. It features a 12-bit resolution with a maximum measurable time interval of up to 16 microseconds, enabling accurate timing measurements across a wide range of signal conditions. The device operates from a single 3.3V supply and includes on-chip calibration circuitry to minimize temperature drift and improve long-term stability. This TDC integrates a high-precision delay line and a dual-edge trigger mechanism that allows it to capture both rising and falling edges of input signals with sub-nanosecond accuracy. Its internal architecture supports multiple channels—typically four independent measurement channels—each capable of operating simultaneously without cross-talk, making it ideal for multi-sensor or multi-channel timing applications such as ultrasonic distance sensing or phase detection in motor control systems. The TDC1000-Q1 incorporates robust diagnostic features including internal self-test, power-on reset, and error detection logic, ensuring reliable operation in harsh environments. It also includes configurable thresholds and programmable dead zones to reduce noise sensitivity and enhance performance in electrically noisy conditions typical in automotive systems. The device communicates via a standard SPI interface, supporting data rates up to 50 Mbps, allowing fast and efficient integration into microcontroller-based systems. Designed for AEC-Q100 Grade 1 qualification, the TDC1000-Q1 meets stringent automotive reliability standards, including extended temperature range operation from -40°C to +125°C. It is optimized for use in applications such as tire pressure monitoring systems (TPMS), ultrasonic parking sensors, fuel level sensing, and industrial automation where precise timing and environmental resilience are critical. Its low power consumption—under 10 mW in active mode—makes it suitable for battery-powered and energy-sensitive designs. Additionally, the chip includes built-in thermal protection and over-voltage protection mechanisms, further enhancing its suitability for safety-critical applications. With an I/O voltage compatibility of 3.3V and support for mixed-signal integration, the TDC1000-Q1 offers a scalable solution for engineers seeking high-performance timing measurement in demanding environments.