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Contents

README

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CM2220-MSOTA

CIMO · Analog To Digital Converters (ADC) · MSOP-10

CM2220-MSOTA from CIMO, 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 REF input Reference voltage input, specified at 2.4 V to 5.1 V; a 10 µF decoupling capacitor should be connected between REF and GND.
2 VDD power_in Core supply voltage, specified at 1.71 V to 1.89 V with 1.8 V typical.
3 IN+ input Positive analog input; the converter samples the voltage difference IN+ minus IN- over a 0 V to VREF range.
4 IN- input Analog input reference ground, the negative input of the pseudo-differential pair.
5 GND power_in Ground reference for the device.
6 CNV input Conversion start: a rising edge starts a conversion, and the CNV level also selects the interface mode, with SDO enabled when CNV is low in chip-select mode and data read while CNV is high in cascade mode.
7 SDO output Serial data output carrying the conversion result, synchronized with SCLK.
8 SCLK input Serial clock input; in cascade mode, SCLK high during the CNV rising edge enables the busy indication.
9 SDI input Serial data input; low at the CNV rising edge selects cascade mode (data delayed 16 SCLK cycles to SDO), while high selects chip-select mode, where SDI low enables SDO.
10 VIO power_in Digital interface supply, specified at 1.71 V to 5.5 V and set to match the host logic level (1.8 V, 2.5 V, 3 V or 5 V).

Key specifications

Parameter Value
Manufacturer CIMO
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
DNL, VREF = 5V DNL -0.9 0.4 0.9 LSB VREF = 5V 6
DNL, VREF = 2.5V (printed as ±0.5, no column given) DNL -0.5 0.5 LSB VREF = 2.5V 6
INL, VREF = 5V INL -1.5 0.6 1.5 LSB VREF = 5V 6
INL, VREF = 2.5V (printed as ±1.2, no column given) INL -1.2 1.2 LSB VREF = 2.5V 6
Gain error 0.001 0.005 %FS 6
Gain error temperature drift -0.36 0.36 ppm/℃ 6
Zero-code error -3 1 3 LSB 6
Dynamic range, VREF = 5V 90 92 dB VREF = 5V 6
SNR SNR 90 91.5 dB fIN = 1kHz,VREF = 5V 6
SNDR SNDR 89.5 91 dB fIN = 1kHz,VREF = 5V 6
Analog input voltage range (IN+ - IN-) 0 V 6
Absolute input voltage IN+ -0.1 V 6
Absolute input voltage IN- -0.1 0.1 V 6
Reference voltage range 2.4 5.1 V 6
Low-level input voltage VIL, VIO > 3V VIL -0.3 V VIO > 3V 6
Low-level input voltage VIL, VIO ≤ 3V VIL -0.3 V VIO ≤ 3V 6
Digital input leakage current, low IIL -1 1 μA 7
Digital input leakage current, high IIH -1 1 μA 7
Low-level output voltage VOL 0.4 V ISINK = 500μA 7
Supply voltage VDD VDD 1.71 1.8 1.89 V 7
Digital interface supply voltage VIO VIO 1.71 5.5 V 7
Total power 5.2 7 mW fS = 1MSPS 7
Power, VDD only 3.5 4 mW fS = 1MSPS 7
Operating temperature -40 125 °C 5
Storage temperature -65 150 °C 5
Junction temperature 150 °C 5
Lead soldering temperature (10 s to 30 s) 240 °C 5
Lead-free soldering temperature 260 °C 5
REF, VIO to GND -0.3 6 V 5
VDD to GND -0.3 2 V 5
VDD to VIO -6 2.3 V 5
IN+, IN- to GND -0.3 V 5
Digital input voltage to GND -0.3 V 5
Digital output voltage to GND -0.3 V 5
ESD HBM 2000 V 5
ESD CDM 750 V 5

CAD (KiCad official)

  • Symbol: CM2220-MSOTA
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: MSOP-10 (KiCad packages3D, STEP)
  • 3D model files: cm2220-msota-etched.step / cm2220-msota-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cm2220-msota.step / cm2220-msota.glb are the bare package body.

Provenance

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

  • Datasheet: CIMO datasheet (23 pp, sha256 61ae2a1faabdd92a, retrieved 2026-10-30, 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