# ADX122AMSOP10

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

ADX122AMSOP10 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 | SCLK | input | Serial clock input with Schmitt-trigger hysteresis; keep it clean, and the serial interface resets if SCLK is held low for 28 ms. |
| 2 | CS | input | Chip select, active low; hold low during serial communication and connect to GND if not used. |
| 3 | GND | power_in | Ground reference for the device. |
| 4 | AIN0 | input | Analog input 0; leave unconnected or tie to VDD if not used. |
| 5 | AIN1 | input | Analog input 1; leave unconnected or tie to VDD if not used. |
| 6 | AIN2 | input | Analog input 2; leave unconnected or tie to VDD if not used. |
| 7 | AIN3 | input | Analog input 3; leave unconnected or tie to VDD if not used. |
| 8 | VDD | power_in | Power supply; connect a 100 nF decoupling capacitor between VDD and GND. |
| 9 | DOUT/DRDY | output | Serial data output combined with data-ready; goes low to indicate new conversion data is available, and is active low. |
| 10 | DIN | input | Serial data input, latched on the SCLK falling edge; the device never drives this pin. |

## Key specifications

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

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Data Rate | DR | 10 |  | 3571 | SPS |  | 6 |
| Data Rate Variation |  | -7 |  | 6 | % | All data rates | 6 |
| Integral Nonlinearity INL | INL |  | 7 | 12 | LSB | DR = 10SPS, FSR = ±2.048V(2), differential inputs | 6 |
| Integral Nonlinearity INL | INL |  | 7 | 15 | LSB | DR = 10SPS, FSR = ±2.048V(2), single-ended inputs | 6 |
| Offset Error |  | -8 | 1.5 | 8 | LSB | FSR = ±2.048V, differential inputs | 6 |
| Offset Error |  | -12 |  | 12 | LSB | FSR = ±2.048V, single-ended inputs | 6 |
| Gain Error |  |  | 0.01 | 0.07 | % | FSR = ±2.048V, TA = 25°C | 6 |
| Gain Drift |  |  | 8 | 14 | ppm/°C | FSR = ±2.048V | 6 |
| Gain Match |  |  | 0.005 | 0.03 | % | Match between any two gains | 6 |
| Gain Channel Match |  |  | 0.001 | 0.01 | % | Match between any two inputs | 6 |
| Common-Mode Rejection Ratio | CMRR | 120 |  |  | dB | At DC, FSR = ±0.256V | 6 |
| Common-Mode Rejection Ratio | CMRR | 114 |  |  | dB | At DC, FSR = ±2.048V | 6 |
| Common-Mode Rejection Ratio | CMRR | 105 |  |  | dB | At DC, FSR = ±6.144V(1) | 6 |
| Normal-Mode Rejection Ratio | NMRR | 72 | 120 |  | dB | ODR = 20SPS, Filter 50 = 1, Filter 60 = 0, 50Hz ± 1Hz | 6 |
| Normal-Mode Rejection Ratio | NMRR | 73 | 128 |  | dB | ODR = 20SPS, Filter 50 = 0, Filter 60 = 1, 60Hz ± 1Hz | 6 |
| Normal-Mode Rejection Ratio | NMRR | 57 | 100 |  | dB | ODR = 20SPS, Filter 50 = 1, Filter 60 = 1, 50Hz or 60Hz ± 1Hz | 6 |
| Input Leakage, High | IH | -10 |  | 10 | μA | VIL = 5.5V | 7 |
| Input Leakage, Low | IL | -10 |  | 10 | μA | VIL = GND | 7 |
| Supply Current | IVDD |  | 0.65 | 1 | μA | Power down, TA = 25°C | 7 |
| Supply Current | IVDD |  |  | 3.5 | μA | Power down | 7 |
| Supply Current | IVDD |  | 150 | 190 | μA | Operating, TA = 25°C | 7 |
| Supply Current | IVDD |  |  | 250 | μA | Operating | 7 |
| Temperature Range |  | -40 |  | 125 | °C |  | 7 |
| Temperature Accuracy |  | -0.5 | 0.2 | 0.5 | °C | TA = 0°C to 70°C | 7 |
| Temperature Accuracy |  | -1 | 0.4 | 1 | °C | TA = -40°C to 125°C | 7 |
| Temperature Accuracy vs supply |  | -0.25 | 0.03125 | 0.25 | °C/V |  | 7 |
| Power-Supply Voltage VDD to GND |  | -0.3 |  | 5.5 | V |  | 4 |
| Input Current, Continuous |  | -10 |  | 10 | mA | Any pin except power supply pins | 4 |
| Junction Temperature | TJ | -40 |  | 150 | °C |  | 4 |
| Storage Temperature | Tstg | -60 |  | 150 | °C |  | 4 |
| Power Supply Voltage | VDD | 2 |  | 5.5 | V | VDD to GND | 5 |
| Operating Ambient Temperature | TA | -40 |  | 125 | °C |  | 5 |
| Junction-to-Ambient Thermal Resistance | RθJA |  | 150 |  | °C/W | MSOP-10 | 5 |
| Junction-to-Board Thermal Resistance | RθJB |  | 90 |  | °C/W | MSOP-10 | 5 |
| Junction-to-Top Characterization Parameter | ψJT |  | 3 |  | °C/W | MSOP-10 | 5 |
| Junction-to-Board Characterization Parameter | ψJB |  | 86 |  | °C/W | MSOP-10 | 5 |
| Junction-to-Case (Top) Thermal Resistance | RθJC(top) |  | 54 |  | °C/W | MSOP-10 | 5 |
| Junction-to-Case (Bottom) Thermal Resistance | RθJC(bot) |  | 90 |  | °C/W | MSOP-10 | 5 |

## CAD (KiCad official)

- Symbol: `ADX122AMSOP10`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files: `adx122amsop10-etched.step` / `adx122amsop10-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adx122amsop10.step` / `adx122amsop10.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [analogysemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906270331318273) (37 pp, sha256 `7ae604dad93be26f`, retrieved 2026-10-20, 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/adx122amsop10-datasheet.pdf)