# ADS8318IDGSR

**Texas Instruments** · Analog To Digital Converters (ADCs) · VSSOP-10-0.5mm

ADS8318IDGSR from Texas Instruments, in a VSSOP-10-0.5mm. 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 | REFIN | input | Reference (positive) input; decouple with GND pin using 0.1-μF bypass capacitor and 10-μF storage capacitor. |
| 2 | +VA | power_in | Analog power supply; decouple with GND pin. |
| 3 | +IN | input | Noninverting analog signal input with operating range from -0.1 Vref to Vref + 0.1 V. |
| 4 | -IN | input | Inverting analog signal input with operating range from -0.1 Vref to Vref + 0.1 V. |
| 5 | GND | power_in | Device ground for both analog power supply (+VA) and digital I/O supply (+VBD). |
| 6 | CONVST | input | Convert input and chip select (CS) input in 3-wire interface mode; minimum pulse width high 10 ns. |
| 7 | SDO | tri_state | Serial data output with tri-state capability in chip select (CS) mode; maximum 3-state transition time 15 ns. |
| 8 | SCLK | input | Serial I/O clock input; data on SDO output is synchronized with this clock; minimum period 30 ns. |
| 9 | SDI | input | Serial data input and chip select (CS) input in 4-wire interface mode; SDI level at start of conversion selects operation mode. |
| 10 | +VBD | power_in | Digital I/O power supply; decouple with GND pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-10-0.5mm |
| Category | ADC/DAC/Data Conversion |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `ADS8318IDGSR`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
- 3D model files: `ads8318idgsr-etched.step` / `ads8318idgsr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads8318idgsr.step` / `ads8318idgsr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/ads8318) (35 pp, sha256 `01afc773c1ac34bd`, retrieved 2026-10-03, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/ads8318idgsr-datasheet.pdf)