Features
- 2-channel TDC with 22ps resolution
- Analog frontend for ultrasonic flow meters
- Chopper-stabilized low-offset comparator for zero crossing detection
- Precise windowing for hit selection
- Temperature measuring unit for PT1000 sensors
- QFN32 package
Benefits
- High precision
- Low power
- Few additional external component needed
Product properties
Applications
- Ultrasonic water meters
- Ultrasonic heat meters
- Ultrasonic gas meters
- Ultrasonic flow indicators
- Laser rangefinders
- Magnetostrictive sensors
Related Products

TDC-GP30 Ultrasonic Flow Converter
TDC-GP30 is the next step in ultrasonic flow metering. It is a system on chip approach to perform all measurement tasks in one IC.

TDC-GP30-F01 Ultrasonic Flow Converter
TDC-GP30-F01 is a complete ultrasonic flow metering solution, including the flow calculation.
Documents
Technical Documents

Datasheet
Document Version 0.9
English

Application Note
Laser range finder
English

Application Note
Water / heat metering
English
Environmental Documents

RoHS Certificate
RoHS Certificate TDC-GP22
English
Notifications

Product Change Notification
Change of Moisture Sensitivity
English

Product Change Notification
Change of Assembly Line
English

Product 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-GP22 Block Diagram
English