# CM1103-SOPTA

**CIMO** · Analog To Digital Converters (ADC) · MSOP-10

CM1103-SOPTA from CIMO, in a MSOP-10. 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 | ADDR | input | I2C slave address selection pin; connect to GND, VDD, SDA, or SCL to select address per Table 4. |
| 2 | ALTER/RDY | output | Comparator output or conversion ready signal; open-drain output configurable via COMP_MODE register bit. |
| 3 | GND | power_in | Ground connection. |
| 4 | AIN0 | input | Analog input channel 0, selectable as positive or negative input in differential configuration or single-ended mode; voltage range GND-0.3V to VDD+0.3V. |
| 5 | AIN1 | input | Analog input channel 1, selectable as positive or negative input in differential configuration or single-ended mode; voltage range GND-0.3V to VDD+0.3V. |
| 6 | AIN2 | input | Analog input channel 2, selectable as positive or negative input in differential configuration or single-ended mode; voltage range GND-0.3V to VDD+0.3V. |
| 7 | AIN3 | input | Analog input channel 3, selectable as positive or negative input in differential configuration or single-ended mode; voltage range GND-0.3V to VDD+0.3V. |
| 8 | VDD | power_in | Positive supply voltage input; operating range 2.5V to 5V. |
| 9 | SDA | bidirectional | I2C serial data line, open-drain output; logic high threshold VIH=0.7VDD to VDD+0.3V, logic low threshold VIL=GND to 0.3VDD. |
| 10 | SCL | input | I2C serial clock input; logic high threshold VIH=0.7VDD to VDD+0.3V, logic low threshold VIL=GND to 0.3VDD. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CIMO |
| Package | MSOP-10 |
| Category | Data Acquisition |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `CM1103-SOPTA`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files: `cm1103-sopta-etched.step` / `cm1103-sopta-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cm1103-sopta.step` / `cm1103-sopta.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CIMO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8618864788424577024) (23 pp, sha256 `cde7136ef50865ec`, retrieved 2026-09-29, 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:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/cm1103-sopta-datasheet.pdf)