ams AG - global leader in the design and manufacture of high performance analog ICs (integrated circuits)

TDC-GP30-F01 Ultrasonic Flow Converter

Firmware supported intelligent ultrasonic flow converter


TDC-GP30-F01 is a complete ultrasonic flow metering solution, including the flow calculation. It drastically simplifies the design of ultrasonic heat and water meters and is the necessary step for compact energy-saving ultrasonic water meters. The ultra-low-current capabilities allow the use of standard 2/3 AA or AA lithium thionyl chloride batteries at 6-8 Hz measuring frequency even in the water meter version. The TDC-GP30 -F01 firmware does the linearization and temperature compensation based on spool-piece specific calibration data and completes the system-on-chip approach. 

Key Features

  • High performance + ultra-low power 32-Bit CPU
  • Advanced high-precision analog part
  • Transducers can be connected directly to GP30, no external components required
  • Firmware for calculation of flow, volume and temperature, including linearization and two-point calibration
  • Firmware adopts automatically to zero flow (2 Hz) or flow (8 Hz) condition
  • Error handling, bubble detection

Key Benefits

  • Lowest power solution for ultrasonic water meters
  • On-chip firmware allows fastest time-to-market
  • Best measurement performance for leakage detection

Product Facts

Analog Frontend
First wave detection
Amplitude measurement
Number of hits 31
Resolution [ps] 11
Operating supply range 2.5 to 3.6
Interface SPI, UART, Pulse
CPU 32-bit
Firmware Volume & flow & temperature calculation
Memory 4k NVRAM, 4k ROM
Ambient temperature range [°C] -40°C to +125°C
Package QFN32, QFN40

Additional Information

  • Non-invasive cold water meter