component
AD8233ACBZ-R7
Public Made by Adomby adom
Analog Devices Analog To Digital Converters (ADC), WLCSP-20(1.7x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"mpn": "AD8233ACBZ-R7",
"manufacturer": "Analog Devices",
"package": "WLCSP-20(1.7x2)",
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"category": "Data Acquisition",
"subcategory": "Analog To Digital Converters (ADC)",
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"digikey": "505-AD8233ACBZ-R7TR-ND"
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"pins": [
{
"number": "A1",
"name": "GND",
"type": "power_in",
"description": "Power supply ground terminal."
},
{
"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."
},
{
"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."
},
{
"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."
},
{
"number": "B1",
"name": "SDN",
"type": "input",
"description": "Shutdown control input; drive low to enter the low power shutdown mode."
},
{
"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."
},
{
"number": "B4",
"name": "IAOUT",
"type": "output",
"description": "Instrumentation amplifier output terminal."
},
{
"number": "B5",
"name": "+IN",
"type": "input",
"description": "Instrumentation amplifier positive input, typically connected to the left arm (LA) electrode."
},
{
"number": "C1",
"name": "LOD",
"type": "output",
"description": "Leads off detection (LOD) comparator output."
},
{
"number": "C2",
"name": "RLD SDN",
"type": "input",
"description": "Right leg drive shutdown control input; drive low to power down the RLD amplifier."
},
{
"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."
},
{
"number": "C4",
"name": "RLDFB",
"type": "input",
"description": "Right leg drive feedback input, the feedback terminal for the right leg drive circuit."
},
{
"number": "C5",
"name": "-IN",
"type": "input",
"description": "Instrumentation amplifier negative input, typically connected to the right arm (RA) electrode."
},
{
"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."
},
{
"number": "D2",
"name": "OPAMP-",
"type": "input",
"description": "Operational amplifier inverting input."
},
{
"number": "D3",
"name": "OPAMP+",
"type": "input",
"description": "Operational amplifier noninverting input."
},
{
"number": "D4",
"name": "SW",
"type": "passive",
"description": "Fast restore switch terminal; connect to the output of the second high-pass filter."
},
{
"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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"at": "2026-10-17T23:36:35"
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"pages": 29,
"sha256": "de233c71aebba2ca",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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