HX711 is a precision 24-bit analog digital converter (ADC) designed for weigh scales and industrial control applications to interface directly with a bridge sensor. It is possible to use both outputs of the integrated circuit.
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| Item | HX711 |
|---|---|
| Voltage Supply | 2.7V – 5.5V |
| Supply Current | 1.5mA |
| Functions | 24 Bit Analog-to-Digital Converter (ADC) for Weigh Scales. |
| Channel | 2 Input Channels |
| Operating Temperature | -40°C to 85°C |
| Board Dimensions | 20 x 40 mm |
| (J1) PIN Number | PIN Name | Description |
|---|---|---|
| 1 | VCC | 2.7V – 5.5V |
| 2 | VDD | 2.7V – 5.5V |
| 3 | DAT | Serial Data Output |
| 4 | CLK | Serial Clock Input |
| 5 | GND | Negative Power Supply |
| (J3) PIN Number | PIN Name | Description |
|---|---|---|
| 1 | RED/E+ | +Excitation |
| 2 | BLK/E- | -Excitation |
| 3 | WHT/A- | -Signal |
| 4 | GRN/A+ | +Signal |
| (J2) PIN Number | PIN Name | Description |
|---|---|---|
| 1 | B+ | + Signal (Second Channel) |
| 2 | B- | – Signal (Second Channel) |
| PIN Number | Description |
|---|---|
| 1-2 | 80SPS |
| 2-23 | 10SPS |
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