component

CM2219-QFNTR

Public Made by Adom

by adom

CIMO Analog To Digital Converters (ADC), QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentdata acquisitioncm2219-qfntrfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 8d ago
viewers cm2219-qfntr: viewers · Ray 8d ago
cm2219-qfntr-etched.glb Publish 0.1.0 · Ray 8d ago
cm2219-qfntr-etched.step cm2219-qfntr: factory component page (tier=lcsc) · Ray 8d ago
cm2219-qfntr-hero.glb cm2219-qfntr: hero GLB from the etched model (keeps the MPN mark) · Ray 8d ago
cm2219-qfntr-hero.overlay.json Publish 0.1.0 · Ray 8d ago
cm2219-qfntr.glb Publish 0.1.0 · Ray 8d ago
cm2219-qfntr.kicad_mod Publish 0.1.0 · Ray 8d ago
cm2219-qfntr.kicad_sym Publish 0.1.0 · Ray 8d ago
cm2219-qfntr.lbr Publish 0.1.0 · Ray 8d ago
cm2219-qfntr.step Publish 0.1.0 · Ray 8d ago
package.json Publish 0.1.0 · Ray 8d ago
page.json Set visibility: public · Ray 8d ago
README.md Publish 0.1.0 · Ray 8d ago

CM2219-QFNTR

CIMO · Analog To Digital Converters (ADC) · QFN-20-EP(4x4)

CM2219-QFNTR from CIMO, in a QFN-20-EP(4x4). 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, typically 4.5 V to 5.5 V; decouple with 10 μF and 100 nF capacitors.
2 REF bidirectional Reference input/output: outputs 4.096 V when the internal reference is enabled, buffers REFIN (max VDD-0.5 V) when the buffer is enabled, or accepts an external reference of 0.5 V to VDD; must be decoupled with 10 μF placed as close to the pin as possible.
3 REFIN bidirectional Internal unbuffered reference output when the internal reference is used (decouple with 0.1 μF), or external reference input of 0.5 V to 4.096 V that is buffered out on REF.
4 GND power_in Ground.
5 GND power_in Ground.
6 IN4 passive Analog input channel 4; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V.
7 IN5 passive Analog input channel 5; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V.
8 IN6 passive Analog input channel 6; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V.
9 IN7 passive Analog input channel 7; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V.
10 COM passive Common input to which all IN[7:0] can be referenced; connect to 0 V or VREF/2, with COM limited to 0.1 V of ground (unipolar) or VREF/2 ±0.1 V (pseudo-bipolar).
11 CNV input Conversion input: a rising edge starts a conversion, and low level enables the SDO output as chip select.
12 DIN input SPI serial data input used to write the 14-bit configuration register, sampled on SCK rising edges.
13 SCK input SPI serial clock input.
14 SDO output SPI serial data output; forced to high impedance when CNV is high.
15 VIO power_in Digital interface supply, normally the same as the host interface supply (1.8 V, 2.5 V, 3 V or 5 V); electrical specification allows 1.8 V to VDD+0.3 V.
16 IN0 passive Analog input channel 0; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V.
17 IN1 passive Analog input channel 1; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V.
18 IN2 passive Analog input channel 2; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V.
19 IN3 passive Analog input channel 3; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V.
20 VDD power_in Power supply, typically 4.5 V to 5.5 V; decouple with 10 μF and 100 nF capacitors.
21 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer CIMO
Package QFN-20-EP(4x4)
Category Data Acquisition
Pins 21

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating temperature -40 125 °C 8
Storage temperature -65 150 °C 8
Junction temperature 150 °C 8
Lead soldering temperature (10 s to 30 s) 240 °C 8
Lead-free soldering temperature 260 °C 8
Analog input voltage -0.3 V Upper limit printed as VDD 8
VDD to GND VDD -0.3 7 V 8
VDD to VIO VDD-VIO -7 7 V 8
DIN, CNV, SCK, SDO to GND -0.3 V Upper limit printed as VIO+0.3 8
ESD HBM 5000 V 8
ESD CDM 2000 V 8
Full-bandwidth conversion rate 0 500 kSPS Full bandwidth 9
1/4-bandwidth conversion rate 0 125 kSPS 1/4 bandwidth 9
INL INL -2.5 0.6 2.5 LSB 9
DNL DNL -1 0.4 1 LSB 9
Gain error, all modes -4 0.5 4 LSB All modes 9
Gain error matching 0.8 3 LSB 9
Gain error temperature drift -0.5 0.5 ppm/℃ 9
Offset error, all modes -2 0.5 2 LSB All modes 9
Offset error matching 2 2.5 LSB 9
Offset error temperature drift -0.3 0.3 ppm/℃ 9
Internal reference REF output voltage REF 4.086 4.096 4.106 V TA = 25°C 9
Internal reference REF output current REF -300 300 μA 9
Internal reference temperature drift -10 10 ppm/℃ 9
External reference voltage range, REF input REF 0.5 V Upper limit printed as VDD+0.3 9
External reference voltage range, REFIN input (buffered) REFIN 0.5 V Upper limit printed as VDD-0.2 9
Unipolar analog input voltage range 0 V Unipolar mode; upper limit printed as VREF 10
Absolute positive input voltage -0.1 V Positive input, unipolar and pseudo-bipolar modes; upper limit printed as VREF+0.1 10
Absolute negative input or COM voltage -0.1 0.1 V Negative input or COM input, unipolar mode 10
Supply voltage VDD VDD 4.5 5.5 V 9
Digital interface supply VIO VIO 1.8 V Upper limit printed as VDD+0.3 10
Digital input low voltage VIL -0.3 V Upper limit printed as 0.3VIO 10
Digital output low voltage VOL 0.4 V ISINK = 500μA 10
Input leakage current low IIL -1 1 μA 10
Input leakage current high IIH -1 1 μA 10
Power dissipation, 500 kSPS, external reference 18 19 mW VDD = 5V, 500kSPS 10
Power dissipation, 500 kSPS, internal reference 25 26 mW VDD = 5V, 500kSPS, internal reference 10
SCLK falling edge data hold time tSDOHD 8 8.8 21.4 ns 11
SCLK falling edge to data valid tSDOD 8 10.5 15.4 ns VIO = 5.5V 11
SCLK falling edge to data valid tSDOD 9.2 15.7 18 ns VIO = 3.3V 11
SCLK falling edge to data valid tSDOD 14 20 29 ns VIO = 1.8V 11
CNV low to SDO MSB valid tEN 10.1 12.9 18.4 ns VIO = 5.5V 11
CNV low to SDO MSB valid tEN 11.3 14 21 ns VIO = 3.3V 11
CNV low to SDO MSB valid tEN 16.2 22.2 32 ns VIO = 1.8V 11
CNV high or last SCLK falling edge to SDO high-Z tDIS 11 15 33 ns 11

CAD (KiCad official)

  • Symbol: CM2219-QFNTR
  • Footprint: Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm
  • 3D model: QFN-20-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: cm2219-qfntr-etched.step / cm2219-qfntr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cm2219-qfntr.step / cm2219-qfntr.glb are the bare package body.

Provenance

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

  • Datasheet: CIMO datasheet (29 pp, sha256 fccccf31d7653135, retrieved 2026-10-18, 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