Description
GP8212S-TC50-EW It is a 15-bit Digital-to-Analog Converter (DAC) specifically designed to convert I²C digital data into an analog current output, typically 0–20 mA or 4–20 mA.
GP8212S-TC50-EW Specifications
| Parameter |
Specification |
| Part Number |
GP8212S-TC50-EW |
| Manufacturer |
Guestgood / Linearin |
| Function |
15-bit DAC, I²C to analog current |
| Resolution |
15-bit |
| Digital Interface |
I²C |
| I²C Clock |
Up to 400 kHz |
| Analog Output |
0–20 mA / 4–20 mA |
| Supply Voltage |
9–36 V |
| Typical Supply |
24 V |
| I²C Logic High |
2.7–5.5 V |
| Initial Output Accuracy |
< 0.5% |
| Calibrated Output Accuracy |
Up to 0.01% with two-point calibration |
| Output Linearity |
0.01% |
| Temperature Coefficient |
50 ppm/°C |
| Maximum Load |
800 Ω @ 24 V |
| Supply Current |
Typical 1.5 mA, maximum 3 mA |
| Startup Time |
< 2 ms |
| Operating Temperature |
−40°C to +85°C |
| Package |
ESOP-8 |
These specifications are from the GP8212S datasheet and the specific TC50-EW ordering code.
Digital Input
The DAC accepts a 15-bit value from 0x0000 to 0x7FFF. The output current is determined by:
IOUT = (2.5 V / RS) × (DATA / 0x7FFF)
With the recommended RS = 100 Ω, the full-scale output is approximately 25 mA, while the device is specified for the commonly used 0–20 mA / 4–20 mA industrial ranges.
Pinout
| Pin |
Name |
Function |
| 1 |
SCLK |
I²C clock |
| 2 |
SDA |
I²C data |
| 3 |
NC |
No connection |
| 4 |
V5V |
Internal 5 V LDO output; requires 1 µF capacitor |
| 5 |
VCC |
Supply voltage, 9–36 V |
| 6 |
GND |
Ground |
| 7 |
FB |
Output current feedback |
| 8 |
IOUT |
Analog current output |
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