Description
Operational amplifier is designed to handle strain beams. The system is supplied with the voltage from 2.6 V to 5.5 V, communicates via a two-wire bus: the data line and a clock line.
Connection
The strain beams are supported through the so-called Wheatstone bridge, i.e. wires connected in the following way:
- E+ (Excitation+)- positive excitation or VCC (power supply)
- E- (Excitation-) - negative excitation or GND (ground)
- A- / A+ -- positive strengthening, a positive signal or a positive output
- B- / B+- the negative strengthening, the negative signal or a negative output
For communication with the microcontroller, e.g. Arduino, the system uses two lines: CLK and DAT.
| Pin | Description |
|---|---|
| VCC | The supply voltage is from 2.6 V to 5.5 V. |
| DAT | Data line of the communication bus. |
| CLK | Clock line of the communication bus. |
| GND | The ground of the system. |
|
E+ A- A+ B- B+ |
Line to connect the strain-gauge beam. The description is above the picture. |
|
The product is compatible with Arduino |
Specification
- Supply voltage: 2.6 V to 5.5 V
- Number of channels: 2
- ADC converter: 24-bit
- Preamplifier: low noise 32 / 64 / 128
- Updated frequency: 10 Hz / 80 Hz
- Pins:openingsfor goldpin connectors - 2.54 mm(strap included)
- Operating temperature: -20 °C to 85 °C
- Module dimensions: 33 x 20 mm
Useful links |
