TDC-GP22 ULTRASONIC FLOW CONVERTERS
Ultrasonic Flow Converter with Integrated Analog Frontend.
The TDC-GP22 is a two-channel TDC that has extra analog components to make it easier to use in ultrasonic flow meter applications, such as an extended fire-pulse generator, zero-cross detection, and analog switches.
TDC-GP22 works well for high dynamic applications such as ultrasonic water meters since it has an additional first-hit detection feature. The various units’ excellent power management reduces the running current to a few µA at a 2Hz measurement rate.
For even higher integration and lower current consumption, please see the TDC-GP30.
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 |
Part Number |
RoHS compl. |
PB Free |
Package |
Packing QTY |
Shipping Package |
| TDC-GP22 | GP22-DEMO MODULE | Y | SYSTEM | 1 | BOX | |
| TDC-GP22 | GP22-DEMO-KIT | Y | SYSTEM | 1 | BOX | |
| TDC-GP22 | GP22-EVA MODULE | Y | SYSTEM | 1 | BOX | |
| TDC-GP22 | GP22-EVA-KIT | Y | SYSTEM | 1 | BOX |
| Analog Frontend | Yes |
| First Wave Detection | Yes |
| Amplitude Measurement | |
| Number of Hits | 3 |
| Resolution [ps] | 22 |
| Operating Supply Range | 2.5 to 3.6 |
| Interface | SPI |
| CPU | – |
| Memory | |
| GPIO | – |
| Ambient Temperature Range [°C] | -40°C to +125°C |
| Package | QFN32 |
Please contact Precision Measurement Technologies for technical support, sample requests, pricing and ordering information: call 727-532-6144
TDC-GP22 Evaluation Kit User Guide
TDC-GP22 Application Note: Water Heat Metering
TDC-GP22 Development Kit User Guide
TDC-GP22 Application Note: Laser Range Finder