component
XC7867
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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownXC7867
Si Change · Analog To Digital Converters (ADC) · SOT-23-6
XC7867 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 | REF/VDD | power_in | External reference input and power supply for the ADC; the datasheet specifies single-supply operation from 1.5 V to 4.5 V and requires 1 µF and 10 nF decoupling capacitors to GND placed as close to the pin as possible. |
| 2 | GND | power_in | Signal and power ground; all analog and digital signals are referenced to this pin. |
| 3 | VIN | power_in | Analog signal input, single-ended unipolar with an input range of 0 V to VDD. |
| 4 | SCLK | input | Serial clock input that clocks out the conversion data and also sources the conversion clock; a conversion frame runs from the CS falling edge to the 14th SCLK falling edge. |
| 5 | SDO | output | Serial data output carrying the conversion result MSB first; it goes to high impedance when the conversion cycle ends at the 14th SCLK falling edge (and when CS is high). |
| 6 | CS | input | Active-low chip select that gates SCLK, starts a conversion on its falling edge, and frames the serial output; driving it high returns the device to auto power-down. |
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 |
|---|---|---|---|---|---|---|---|
| Integral nonlinearity error (INL), maximum error | INL | -0.5 | 0.5 | LSB | 1 | ||
| Differential nonlinearity error (DNL), maximum error | DNL | -0.5 | 0.5 | LSB | 1 | ||
| Single supply voltage range | VDD | 1.5 | 4.5 | V | single power supply | 1 | |
| Maximum sampling rate, 1.5V-3.0V supply | 240 | KSPS | 1.5V-3.0V single supply | 1 | |||
| Maximum sampling rate, 3.0V-4.5V supply | 1.2 | MSPS | 3.0V-4.5V single supply | 1 | |||
| Operating temperature range | -40 | 85 | °C | 1 | |||
| Power consumption (typical) | 0.12 | mW | 1.8V, 240KSPS | 1 | |||
| Power consumption (typical) | 0.42 | mW | 3.3V, 240KSPS | 1 | |||
| Signal-to-noise and distortion ratio (SNR) | SNR | 61.5 | dB | @30 KHz | 2 | ||
| Total harmonic distortion (THD) | THD | -73 | dB | @30 KHz | 2 |
CAD (KiCad official)
- Symbol:
XC7867 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
xc7867-etched.step/xc7867-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xc7867.step/xc7867.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Si Change datasheet (4 pp, sha256
5ac5092f43a19a97, 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).