# ADS1118IDGSR

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

ADS1118IDGSR 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 | SCLK | input | Serial clock input for SPI communication. |
| 2 | CS | input | Chip select input, active low; connect to GND if not used. |
| 3 | GND | power_in | Ground reference. |
| 4 | AIN0 | input | Analog input 0, operating range GND to VDD; leave unconnected or tie to VDD if not used. |
| 5 | AIN1 | input | Analog input 1, operating range GND to VDD; leave unconnected or tie to VDD if not used. |
| 6 | AIN2 | input | Analog input 2, operating range GND to VDD; leave unconnected or tie to VDD if not used. |
| 7 | AIN3 | input | Analog input 3, operating range GND to VDD; leave unconnected or tie to VDD if not used. |
| 8 | VDD | power_in | Power supply input, operating range 2V to 5.5V; requires 100-nF decoupling capacitor to GND. |
| 9 | DOUT/DRDY | tri_state | Serial data output combined with data ready indication, active low; can enter 3-state mode when PULL_UP_EN bit is 0. |
| 10 | DIN | input | Serial data input for SPI communication. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-10-0.5mm |
| Category | Data Acquisition |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `ADS1118IDGSR`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
- 3D model files: `ads1118idgsr-etched.step` / `ads1118idgsr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads1118idgsr.step` / `ads1118idgsr.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/ads1118) (51 pp, sha256 `2df2a2d9b5850792`, retrieved 2026-10-03, 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-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/ads1118idgsr-datasheet.pdf)