component
XC7476
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.
main
XC7476
Si Change · Analog To Digital Converters (ADC) · SOT-23-6
XC7476 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, specified from 4 V to 5.25 V; the datasheet also says VDD should be at or above the maximum VIN input to avoid saturating the maximum conversion code. |
| 2 | GND | power_in | Analog input signal ground and common ground reference for all circuits; all analog and digital signals are referenced to this pin. |
| 3 | VIN | power_in | Single-ended analog signal input with an input range of 0 V to VDD. |
| 4 | SCLK | input | Serial clock input that provides the serial clock and acts as the clock source for the conversion process; the datasheet calls for 16 SCLK cycles per conversion. |
| 5 | SDATA | output | Serial data output that delivers the conversion result MSB first, preceded by four leading zeros; the output goes to three-state after the 16th falling edge of SCLK. |
| 6 | CS | input | Active-low chip select that starts a conversion on its falling edge and frames the serial data output; pulling it high before 10 SCLK cycles aborts the conversion. |
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 VDD (single supply) | VDD | 4 | 5.25 | V | XC7476 single supply | 1 | |
| Operating temperature range | -40 | 85 | °C | 1 | |||
| Maximum sampling rate | 800 | KSPS | 2 | ||||
| Integral nonlinearity error (INL) | INL | -1.25 | 1.25 | LSB | 2 | ||
| Differential nonlinearity error (DNL) | DNL | -1 | 1 | LSB | 2 | ||
| Signal-to-noise and distortion ratio (SNR) | SNR | 72 | dB | @100 KHz | 2 | ||
| Total harmonic distortion (THD) | THD | -82 | dB | @100 KHz | 2 | ||
| Power consumption (typical) | 6.15 | mW | 5V, 800 KSPS | 1 | |||
| Power consumption (typical) | 3.6 | mW | 4V, 800 KSPS | 1 | |||
| Analog input voltage range (VIN) | VIN | 0 | V | single-ended input, 0 V to VDD range (max printed as VDD, not a number) | 2 |
CAD (KiCad official)
- Symbol:
XC7476 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
xc7476-etched.step/xc7476-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xc7476.step/xc7476.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Si Change datasheet (4 pp, sha256
a4e7526bc2754299, 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).
# XC7476
**Si Change** · Analog To Digital Converters (ADC) · SOT-23-6
XC7476 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, specified from 4 V to 5.25 V; the datasheet also says VDD should be at or above the maximum VIN input to avoid saturating the maximum conversion code. |
| 2 | GND | power_in | Analog input signal ground and common ground reference for all circuits; all analog and digital signals are referenced to this pin. |
| 3 | VIN | power_in | Single-ended analog signal input with an input range of 0 V to VDD. |
| 4 | SCLK | input | Serial clock input that provides the serial clock and acts as the clock source for the conversion process; the datasheet calls for 16 SCLK cycles per conversion. |
| 5 | SDATA | output | Serial data output that delivers the conversion result MSB first, preceded by four leading zeros; the output goes to three-state after the 16th falling edge of SCLK. |
| 6 | CS | input | Active-low chip select that starts a conversion on its falling edge and frames the serial data output; pulling it high before 10 SCLK cycles aborts the conversion. |
## 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 VDD (single supply) | VDD | 4 | | 5.25 | V | XC7476 single supply | 1 |
| Operating temperature range | | -40 | | 85 | °C | | 1 |
| Maximum sampling rate | | | | 800 | KSPS | | 2 |
| Integral nonlinearity error (INL) | INL | -1.25 | | 1.25 | LSB | | 2 |
| Differential nonlinearity error (DNL) | DNL | -1 | | 1 | LSB | | 2 |
| Signal-to-noise and distortion ratio (SNR) | SNR | | 72 | | dB | @100 KHz | 2 |
| Total harmonic distortion (THD) | THD | | -82 | | dB | @100 KHz | 2 |
| Power consumption (typical) | | | 6.15 | | mW | 5V, 800 KSPS | 1 |
| Power consumption (typical) | | | 3.6 | | mW | 4V, 800 KSPS | 1 |
| Analog input voltage range (VIN) | VIN | 0 | | | V | single-ended input, 0 V to VDD range (max printed as VDD, not a number) | 2 |
## CAD (KiCad official)
- Symbol: `XC7476`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `xc7476-etched.step` / `xc7476-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xc7476.step` / `xc7476.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/8603387340505706496) (4 pp, sha256 `a4e7526bc2754299`, 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/xc7476-datasheet.pdf)