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XC7920
Public Made by Adomby adom
Si Change Analog To Digital Converters (ADC), SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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XC7920
Si Change · Analog To Digital Converters (ADC) · SOT-23-6
XC7920 from Si Change, in a SOT-23-6. 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 | VDD | power_in | Power supply input; VDD ranges from 3.3 V to 5.25 V. |
| 2 | GND | power_in | Ground reference for the device; all analog and digital signals are referenced to this pin. |
| 3 | VIN | power_in | Unipolar analog signal input; the input range is 0 to VDD. |
| 4 | SCLK | input | Serial clock input; it clocks out the conversion data and is the source of the conversion clock. |
| 5 | SDATA | output | Serial data output carrying the conversion result, MSB first; it goes tri-state at the end of the conversion cycle. |
| 6 | CS | input | Active-low chip select; it gates SCLK, starts a conversion, and frames the output data. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Si Change |
| Package | SOT-23-6 |
| Category | Data Acquisition |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage (single supply) | VDD | 3.3 | 5.25 | V | 1 | ||
| Operating temperature range | -40 | 85 | ℃ | 1 | |||
| Integral nonlinearity error | INL | -0.5 | 0.5 | LSB | 2 | ||
| Differential nonlinearity error | DNL | -0.5 | 0.5 | LSB | 2 | ||
| Analog input voltage range (single-ended, unipolar) | VIN | 0 | V | Input range 0 to VDD | 2 | ||
| Maximum sampling rate | 250 | KSPS | 1 |
CAD (KiCad official)
- Symbol:
XC7920 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
xc7920-etched.step/xc7920-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xc7920.step/xc7920.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Si Change datasheet (4 pp, sha256
68fb1c99beb3f641, retrieved 2026-10-17, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).
# XC7920
**Si Change** · Analog To Digital Converters (ADC) · SOT-23-6
XC7920 from Si Change, in a SOT-23-6. 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 | VDD | power_in | Power supply input; VDD ranges from 3.3 V to 5.25 V. |
| 2 | GND | power_in | Ground reference for the device; all analog and digital signals are referenced to this pin. |
| 3 | VIN | power_in | Unipolar analog signal input; the input range is 0 to VDD. |
| 4 | SCLK | input | Serial clock input; it clocks out the conversion data and is the source of the conversion clock. |
| 5 | SDATA | output | Serial data output carrying the conversion result, MSB first; it goes tri-state at the end of the conversion cycle. |
| 6 | CS | input | Active-low chip select; it gates SCLK, starts a conversion, and frames the output data. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Si Change |
| Package | SOT-23-6 |
| Category | Data Acquisition |
| Pins | 6 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage (single supply) | VDD | 3.3 | | 5.25 | V | | 1 |
| Operating temperature range | | -40 | | 85 | ℃ | | 1 |
| Integral nonlinearity error | INL | -0.5 | | 0.5 | LSB | | 2 |
| Differential nonlinearity error | DNL | -0.5 | | 0.5 | LSB | | 2 |
| Analog input voltage range (single-ended, unipolar) | VIN | 0 | | | V | Input range 0 to VDD | 2 |
| Maximum sampling rate | | | | 250 | KSPS | | 1 |
## CAD (KiCad official)
- Symbol: `XC7920`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `xc7920-etched.step` / `xc7920-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xc7920.step` / `xc7920.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Si Change datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603387373132926976) (4 pp, sha256 `68fb1c99beb3f641`, retrieved 2026-10-17, 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/xc7920-datasheet.pdf)