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XC7920

Public Made by Adom

by 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.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 (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