# GP8312-TC50-EW

**Guestgood** · Digital To Analog Converters (DAC) · SOP-8

GP8312-TC50-EW from Guestgood, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | SCLK | input | I2C protocol clock signal input; the I2C input high level is 2.7V-5.5V. |
| 2 | SDA | bidirectional | I2C protocol data signal; the I2C input high level is 2.7V-5.5V. |
| 3 | ALARM | output | Active-low open-drain output-open-circuit alarm; a low level indicates the output (IOUT) is open circuit. |
| 4 | VCC | power_in | Power supply, 18V to 40V (24V typical, 40V maximum). |
| 5 | GND | power_in | Ground; the exposed heat slug must also be grounded. |
| 6 | SET | passive | Full-scale current setting pin, with Rset connected to GND (1k gives 25mA full scale), where full-scale IOUT=5V*5/Rset. |
| 7 | IOUT | output | Analog current output, 4-20mA/0-20mA output port (0-25mA range with Rset = 1k). |
| 8 | V5V | power_out | Internal LDO 5V output; an external 1uF capacitor is required. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Guestgood |
| Package | SOP-8 |
| Category | Data Acquisition |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 电源电压 Supply voltage | VCC | 18 | 24 | 40 | V |  | 7 |
| 电源功耗 Supply current (power consumption) | ICC |  | 2.5 | 3 | mA | VCC @24V 空载 | 7 |
| 输出电流 Output current range | IOUT | 0 |  | 25 | mA |  | 7 |
| 输出电流误差 Output current error (ratio to IOUT range) | ΔIOUT | -0.5 |  | 0.5 | % |  | 7 |
| 输出电流线性度 Output current linearity | Lout | -0.02 |  | 0.02 | % |  | 7 |
| 温度系数 Temperature coefficient | Tco |  |  | 50 | PPM/℃ |  | 7 |
| 最大负载电阻 Maximum load resistance | RMax |  |  | 700 | Ω | VCC@24V | 7 |
| I2C时钟频率 I2C clock frequency | fsclk |  |  | 400 | K Hz |  | 7 |
| 工业操作温度 Industrial operating temperature (absolute max) |  | -40 |  | 85 | ℃ |  | 2 |
| 储存温度 Storage temperature |  | -50 |  | 125 | ℃ |  | 2 |
| 输入电压 Input voltage |  | -0.3 |  |  | V |  | 2 |
| 最大电压 Maximum voltage |  |  |  | 40 | V |  | 2 |
| ESD 保护 ESD protection |  | 2000 |  |  | V |  | 2 |
| I2C输入信号高电平 I2C input high level |  | 2.7 |  | 5.5 | V | 输入I2C信号高电平 | 1 |
| 工作温度 Operating temperature (TC50 ordering code) |  | -40 |  | 85 | ℃ | GP8312-TC50-EW ordering code | 8 |

## CAD (KiCad official)

- Symbol: `GP8312-TC50-EW`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `gp8312-tc50-ew-etched.step` / `gp8312-tc50-ew-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gp8312-tc50-ew.step` / `gp8312-tc50-ew.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Guestgood datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756349852244955136) (9 pp, sha256 `e139a7ce3ec75bb2`, retrieved 2026-10-19, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/gp8312-tc50-ew-datasheet.pdf)