{
  "title": "NTC excitation and acquisition",
  "source": "IO_MODULES/ANALOG_INPUTS.md: NTC temperature channels",
  "reference_scope": "documentation only",
  "components": [
    {
      "ref": "V",
      "kind": "port",
      "pins": [
        "P"
      ],
      "value": "+5V_SENS"
    },
    {
      "ref": "R_PULLUP",
      "kind": "resistor",
      "pins": [
        "1",
        "2"
      ],
      "value": "R_PULLUP\nSelected for sensor curve"
    },
    {
      "ref": "NTC",
      "kind": "thermistor",
      "pins": [
        "1",
        "2"
      ],
      "value": "NTC"
    },
    {
      "ref": "GN",
      "kind": "ground-port",
      "pins": [
        "P"
      ],
      "value": "SENSOR_GND"
    },
    {
      "ref": "AFE",
      "kind": "functional-block",
      "pins": [
        "IN",
        "OUT"
      ],
      "value": "Attenuation / local filter"
    },
    {
      "ref": "ADC",
      "kind": "port",
      "pins": [
        "P"
      ],
      "value": "ADC_NTC"
    },
    {
      "ref": "VS",
      "kind": "port",
      "pins": [
        "P"
      ],
      "value": "+5V_SENS"
    },
    {
      "ref": "SENSE",
      "kind": "functional-block",
      "pins": [
        "IN",
        "OUT"
      ],
      "value": "Matched divider / filter"
    },
    {
      "ref": "ADCS",
      "kind": "port",
      "pins": [
        "P"
      ],
      "value": "ADC_5V_SENSE"
    }
  ],
  "nets": [
    {
      "name": "+5V_SENS",
      "connections": [
        "V.P",
        "R_PULLUP.1",
        "VS.P",
        "SENSE.IN"
      ]
    },
    {
      "name": "NTC_NODE",
      "connections": [
        "R_PULLUP.2",
        "NTC.1",
        "AFE.IN"
      ]
    },
    {
      "name": "SENSOR_GND",
      "connections": [
        "NTC.2",
        "GN.P"
      ]
    },
    {
      "name": "ADC_NTC",
      "connections": [
        "AFE.OUT",
        "ADC.P"
      ]
    },
    {
      "name": "ADC_5V_SENSE",
      "connections": [
        "SENSE.OUT",
        "ADCS.P"
      ]
    }
  ],
  "no_connects": []
}