Features
- High performance and ultra-low power 32-Bit CPU with 4k NVRAM and 4k ROM
- Up to 31 multi-hits for flow measurement yield the highest accuracy
- Advanced high-precision analog part
- Transducers can be connected directly to GP30, no external components required
- Amplitude measurements of receiving signal for secure bubble, aging and empty spool piece detection
- High update rates with very low power consumption (e.g. 6 µA@8Hz)
Benefits
- Lowest power solution for ultrasonic water meters
- On-chip firmware allows fastest time-to-market
- Best measurement performance for leakage detection
Product properties
Applications
- Ultrasonic water meters
- Ultrasonic heat meters
- Ultrasonic gas meters
- Industrial flow indicators
Tools

Development Kit for TDC-GP30
The GP30-DEV-KIT is designed as a platform for a quick and easy start-up and evaluation of the TDC-GP30 and TDC-GP30-F01 ultrasonic flow converters in QFN32 package. The development kit offers user-friendly configuration and extensive testing of the devices, as well as data acquisition for calibration. For the variants in QFN40 package, we offer the bigger GP30-EVA-KIT and GP30-EVA-KIT-F01. All kits come with the PICOPROG interface box to connect to USB ports.

Evaluation Kit for TDC-GP30, QFN40 package
The GP30-EVA-KIT is designed as a platform for a quick and easy start-up and evaluation of the TDC-GP30 and TDC-GP30-F01 ultrasonic flow converters in QFN40 package. The evaluation kit offers user-friendly configuration and extensive testing of the devices, as well as data acquisition for calibration. For the variants in QFN32 package, we offer the smaller GP30-DEV-KIT and GP30-DEV-KIT-F01. All kits come with the PICOPROG interface box to connect to USB ports.
Documents
Technical Documents

Datasheet
Vol. 1 General Data and Frontend Description
English

Datasheet
Vol. 2 CPU, Memory and Firmware
English

User Guide
UFC ST Nucleo Shields Expansion Boards
English

Application Note
How to write custom Firmware
English

Application Note
First Hit Level Determination and Regulation
English

Application Note
Operation with a single transducer for concentration measurement
English

Application Note
External circuit for gas meters
English

Application Note
Vol. 3 User Manual
English

Application Note
TDC-GP30 UART Communication
English

Application Note
Water / heat metering
English

User Guide
iESLab Module with TDC-GP30
English

User Guide
TDC-GP30-DEV-KIT Reference Board Manual
English
Environmental Documents

Material Declaration Form
MDF_502030003_TDC-GP30YD
English

Material Declaration Form
MDF_502030004_TDC-GP30YA
English

RoHS Certificate
RoHS Certificate TDC-GP30
English
Notifications

Product Change Notification
Change Notification_MOQ Amendment_PCAPx_TDC-GPx_PS09FN (issued 2017-Mar)
English

Product Change Notification
CN13-2017 (PCAP0x, TDC-GPxx, PS09)
English
Other Information

Block Diagram
TDC-GP30 Block Diagram
English

Factsheet
Intelligent Analog Frontend for Ultrasonic Flow Metering
English