AD8233ACBZ-R7

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  "title": "AD8233ACBZ-R7",
  "brief": "Analog Devices Analog To Digital Converters (ADC), WLCSP-20(1.7x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "subcategory": "Analog To Digital Converters (ADC)",
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        "number": "A1",
        "name": "GND",
        "type": "power_in",
        "description": "Power supply ground terminal."
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      {
        "number": "A2",
        "name": "+VS",
        "type": "power_in",
        "description": "Power supply terminal; the device is single-supply from 1.7 V to 3.5 V, with an absolute maximum supply of 3.6 V."
      },
      {
        "number": "A3",
        "name": "REFIN",
        "type": "input",
        "description": "Reference buffer input, a high impedance terminal used to set the level of the reference buffer."
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      {
        "number": "A4",
        "name": "HPSENSE",
        "type": "input",
        "description": "High-pass sense input for the instrumentation amplifier, connected to the junction of the R and C that sets the dc blocking corner frequency."
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      {
        "number": "A5",
        "name": "HPDRIVE",
        "type": "output",
        "description": "High-pass driver output connected to the capacitor of the first high-pass filter, driven to keep HPSENSE at the reference voltage."
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      {
        "number": "B1",
        "name": "SDN",
        "type": "input",
        "description": "Shutdown control input; drive low to enter the low power shutdown mode."
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      {
        "number": "B2",
        "name": "AC/DC",
        "type": "input",
        "description": "Leads off mode control input; drive low for dc leads off mode and high for ac leads off mode."
      },
      {
        "number": "B3",
        "name": "FR",
        "type": "input",
        "description": "Fast restore control input; drive high to enable fast recovery mode, otherwise drive low."
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      {
        "number": "B4",
        "name": "IAOUT",
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        "description": "Instrumentation amplifier output terminal."
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        "number": "C2",
        "name": "RLD SDN",
        "type": "input",
        "description": "Right leg drive shutdown control input; drive low to power down the RLD amplifier."
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      {
        "number": "C3",
        "name": "REFOUT",
        "type": "output",
        "description": "Reference buffer output that serves as the virtual ground; the instrumentation amplifier output is referenced to this potential."
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      {
        "number": "C4",
        "name": "RLDFB",
        "type": "input",
        "description": "Right leg drive feedback input, the feedback terminal for the right leg drive circuit."
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        "number": "C5",
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        "type": "input",
        "description": "Instrumentation amplifier negative input, typically connected to the right arm (RA) electrode."
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        "number": "D1",
        "name": "OUT",
        "type": "output",
        "description": "Operational amplifier output carrying the fully conditioned heart rate signal; it can be connected to an ADC input."
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        "number": "D2",
        "name": "OPAMP-",
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        "description": "Operational amplifier inverting input."
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        "number": "D3",
        "name": "OPAMP+",
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        "description": "Operational amplifier noninverting input."
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        "number": "D4",
        "name": "SW",
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        "description": "Fast restore switch terminal; connect to the output of the second high-pass filter."
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      {
        "number": "D5",
        "name": "RLD",
        "type": "output",
        "description": "Right leg drive output; connect the driven electrode (typically the right leg) to this pin."
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