ADX121AMSOP10

analogysemi · Analog To Digital Converters (ADC) · MSOP-10

ADX121AMSOP10 from analogysemi, 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 select; tie to GND, VDD, SDA or SCL to choose one of four addresses (Table 14), and the pin is sampled continuously.
2	ALERT/RDY	output	Open-drain comparator output or conversion-ready output that requires a pull-up resistor to the bus supply.
3	GND	power_in	Ground reference for the device.
4	AIN0	input	Analog input 0; must stay within GND - 0.3 V to VDD + 0.3 V (Equation 3) to avoid forward-biasing the ESD diodes.
5	AIN1	input	Analog input 1; must stay within GND - 0.3 V to VDD + 0.3 V (Equation 3) to avoid forward-biasing the ESD diodes.
6	AIN2	input	Analog input 2; must stay within GND - 0.3 V to VDD + 0.3 V (Equation 3) to avoid forward-biasing the ESD diodes.
7	AIN3	input	Analog input 3; must stay within GND - 0.3 V to VDD + 0.3 V (Equation 3) to avoid forward-biasing the ESD diodes.
8	VDD	power_in	Power supply input; decouple with at least a 0.1 µF capacitor to GND, and the absolute maximum VDD to GND is 7 V.
9	SDA	bidirectional	Serial data line for I2C, open-drain; digital input voltage limit is GND - 0.3 V to 5.5 V.
10	SCL	input	I2C serial clock input that locks data on SDA; digital input voltage limit is GND - 0.3 V to 5.5 V.

Key specifications

Parameter	Value
Manufacturer	analogysemi
Package	MSOP-10
Category	Data Acquisition
Pins	10

CAD (KiCad official)

Symbol: ADX121AMSOP10
Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
3D model: MSOP-10 (KiCad packages3D, STEP)
3D model files: adx121amsop10-etched.step / adx121amsop10-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); adx121amsop10.step / adx121amsop10.glb are the bare package body.

Provenance

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

Datasheet: analogysemi datasheet (43 pp, sha256 10387f98b9925128, retrieved 2026-10-28, 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-5-5 (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

# ADX121AMSOP10

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

ADX121AMSOP10 from analogysemi, 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 select; tie to GND, VDD, SDA or SCL to choose one of four addresses (Table 14), and the pin is sampled continuously. |
| 2 | ALERT/RDY | output | Open-drain comparator output or conversion-ready output that requires a pull-up resistor to the bus supply. |
| 3 | GND | power_in | Ground reference for the device. |
| 4 | AIN0 | input | Analog input 0; must stay within GND - 0.3 V to VDD + 0.3 V (Equation 3) to avoid forward-biasing the ESD diodes. |
| 5 | AIN1 | input | Analog input 1; must stay within GND - 0.3 V to VDD + 0.3 V (Equation 3) to avoid forward-biasing the ESD diodes. |
| 6 | AIN2 | input | Analog input 2; must stay within GND - 0.3 V to VDD + 0.3 V (Equation 3) to avoid forward-biasing the ESD diodes. |
| 7 | AIN3 | input | Analog input 3; must stay within GND - 0.3 V to VDD + 0.3 V (Equation 3) to avoid forward-biasing the ESD diodes. |
| 8 | VDD | power_in | Power supply input; decouple with at least a 0.1 µF capacitor to GND, and the absolute maximum VDD to GND is 7 V. |
| 9 | SDA | bidirectional | Serial data line for I2C, open-drain; digital input voltage limit is GND - 0.3 V to 5.5 V. |
| 10 | SCL | input | I2C serial clock input that locks data on SDA; digital input voltage limit is GND - 0.3 V to 5.5 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `ADX121AMSOP10`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files: `adx121amsop10-etched.step` / `adx121amsop10-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adx121amsop10.step` / `adx121amsop10.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [analogysemi datasheet](docs/adx121amsop10-datasheet.pdf) (43 pp, sha256 `10387f98b9925128`, retrieved 2026-10-28, 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-5-5` (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/adx121amsop10-datasheet.pdf)