component
AD8233ACBZ-R7
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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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README.md+105ad8233acbz-r7-etched.glbad8233acbz-r7-hero.glbad8233acbz-r7-hero.overlay.json+344ad8233acbz-r7.glbad8233acbz-r7.kicad_mod+319ad8233acbz-r7.kicad_sym+93ad8233acbz-r7.lbr+162ad8233acbz-r7.step+1382docs/ad8233acbz-r7-datasheet.pdfdocs/hero.pngpackage.json+265page.json+271viewers/footprint.html+1viewers/symbol.html+1README.mdadded+105@@ -0,0 +1,105 @@+# AD8233ACBZ-R7++**Analog Devices** · Analog To Digital Converters (ADC) · WLCSP-20(1.7x2)++AD8233ACBZ-R7 from Analog Devices, in a WLCSP-20(1.7x2). 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 |+|---|---|---|---|+| A1 | GND | power_in | Power supply ground terminal. |+| A2 | +VS | power_in | 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. |+| A3 | REFIN | input | Reference buffer input, a high impedance terminal used to set the level of the reference buffer. |+| A4 | HPSENSE | input | High-pass sense input for the instrumentation amplifier, connected to the junction of the R and C that sets the dc blocking corner frequency. |+| A5 | HPDRIVE | output | High-pass driver output connected to the capacitor of the first high-pass filter, driven to keep HPSENSE at the reference voltage. |+| B1 | SDN | input | Shutdown control input; drive low to enter the low power shutdown mode. |+| B2 | AC/DC | input | Leads off mode control input; drive low for dc leads off mode and high for ac leads off mode. |+| B3 | FR | input | Fast restore control input; drive high to enable fast recovery mode, otherwise drive low. |+| B4 | IAOUT | output | Instrumentation amplifier output terminal. |+| B5 | +IN | input | Instrumentation amplifier positive input, typically connected to the left arm (LA) electrode. |+| C1 | LOD | output | Leads off detection (LOD) comparator output. |+| C2 | RLD SDN | input | Right leg drive shutdown control input; drive low to power down the RLD amplifier. |+| C3 | REFOUT | output | Reference buffer output that serves as the virtual ground; the instrumentation amplifier output is referenced to this potential. |+| C4 | RLDFB | input | Right leg drive feedback input, the feedback terminal for the right leg drive circuit. |+| C5 | -IN | input | Instrumentation amplifier negative input, typically connected to the right arm (RA) electrode. |+| D1 | OUT | output | Operational amplifier output carrying the fully conditioned heart rate signal; it can be connected to an ADC input. |+| D2 | OPAMP- | input | Operational amplifier inverting input. |+| D3 | OPAMP+ | input | Operational amplifier noninverting input. |+| D4 | SW | passive | Fast restore switch terminal; connect to the output of the second high-pass filter. |+| D5 | RLD | output | Right leg drive output; connect the driven electrode (typically the right leg) to this pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Analog Devices |+| Package | WLCSP-20(1.7x2) |+| Category | Data Acquisition |+| Pins | 20 |++## Electrical characteristics++Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).++| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |+|---|---|---|---|---|---|---|---|+| Common-Mode Rejection Ratio, DC to 60 Hz | CMRR | 80 | 86 | | dB | VCM = 0.35 V to +VS − 150 mV, VDIFF = 0 V | 3 |+| Power Supply Rejection Ratio | PSRR | 76 | 90 | | dB | +VS = 1.8 V to 3.5 V | 3 |+| Offset Voltage (RTI), Instrumentation Amplifier Inputs | VOS | | 1 | 6 | mV | Instrumentation Amplifier Inputs | 3 |+| Input Bias Current | IB | | 50 | 200 | pA | | 3 |+| Input Offset Current | IOS | | 25 | 100 | pA | | 3 |+| DC Differential Input Range | | -300 | | 300 | mV | | 3 |+| Output Swing | | 0.1 | | | V | RL = 50 kΩ | 3 |+| Gain Error | | | 1 | 4 | % | VDIFF = −300 mV to +300 mV | 3 |+| Input Voltage Range | | 0.2 | | | V | TA = 0°C to 70°C | 3 |+| Operational Amplifier Offset Voltage | VOS | | 1 | 5 | mV | | 3 |+| Operational Amplifier Input Voltage Range | | 0.1 | | | V | | 3 |+| Operational Amplifier Output Voltage Range | | 0.1 | | | V | RL = 50 kΩ | 3 |+| Right Leg Drive Amplifier Quiescent Supply Current | | | 7.5 | 10 | μA | | 4 |+| Right Leg Drive Amplifier Output Swing | | 0.1 | | | V | RL = 50 kΩ | 4 |+| Integrator Input Resistor | | 120 | 150 | 180 | kΩ | | 4 |+| Reference Buffer Voltage Range | | 0.1 | | | V | RL = 50 kΩ | 4 |+| AC Leads Off Square Wave Frequency | fAC | 50 | 100 | 175 | kHz | | 4 |+| Impedance Threshold Between +IN and −IN | | | 10 | 20 | MΩ | SDN = high | 4 |+| Fast Restore Switch On Resistance | RON | 8 | 10 | 12 | kΩ | | 4 |+| Quiescent Supply Current | | | 50 | 70 | μA | | 5 |+| Wakeup Current | | | 0.65 | 1.5 | μA | SDN = low, LOD = low | 5 |+| Shutdown Current | | | 0.5 | 1 | μA | SDN = low, LOD = high | 5 |+| Supply Range | | 1.7 | | 3.5 | V | | 5 |+| Specified Temperature Range | | 0 | | 70 | °C | | 5 |+| Operational Temperature Range | | -40 | | 85 | °C | | 5 |+| Supply Voltage | | | | 3.6 | V | | 6 |+| Minimum Voltage, Any Terminal | | -0.3 | | | V | | 6 |+| Storage Temperature Range | | -65 | | 125 | °C | | 6 |+| Operating Temperature Range | | -40 | | 85 | °C | | 6 |+| Maximum Junction Temperature | | | | 140 | °C | | 6 |+| Thermal Resistance, Junction-to-Ambient | θJA | | 108.5 | | °C/W | PCB 1S0P, 0.25 W, 0 ms | 6 |+| Thermal Resistance, Junction-to-Ambient | θJA | | 89 | | °C/W | PCB 1S0P, 0.25 W, 1 ms | 6 |+| Thermal Resistance, Junction-to-Ambient | θJA | | 82.3 | | °C/W | PCB 1S0P, 0.25 W, 2 ms | 6 |+| Thermal Resistance, Junction-to-Ambient | θJA | | 101.1 | | °C/W | PCB 1S0P, 1.25 W, 0 ms | 6 |+| Thermal Resistance, Junction-to-Ambient | θJA | | 87.3 | | °C/W | PCB 1S0P, 1.25 W, 1 ms | 6 |+| Thermal Resistance, Junction-to-Ambient | θJA | | 47.9 | | °C/W | PCB 2S2P, 0.25 W, 0 ms | 6 |+| Thermal Resistance, Junction-to-Ambient | θJA | | 43.4 | | °C/W | PCB 2S2P, 0.25 W, 1 ms | 6 |+| Thermal Resistance, Junction-to-Ambient | θJA | | 42.1 | | °C/W | PCB 2S2P, 0.25 W, 2 ms | 6 |+| Thermal Resistance, Junction-to-Ambient | θJA | | 46.8 | | °C/W | PCB 2S2P, 1.25 W, 0 ms | 6 |+| Thermal Resistance, Junction-to-Ambient | θJA | | 43.3 | | °C/W | PCB 2S2P, 1.25 W, 1 ms | 6 |+| Thermal Resistance, Junction-to-Case | θJC | | 0.6 | | °C/W | PCB 1S0P | 6 |+| Thermal Resistance, Junction-to-Case | θJC | | 0.7 | | °C/W | PCB 2S2P | 6 |++## CAD (KiCad official)++- Symbol: `AD8233ACBZ-R7`+- Footprint: `Package_CSP:WLCSP-20_1.994x1.609mm_Layout5x4_P0.4mm`+- 3D model: WLCSP-20(1.7x2), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.35 mm nominal DSBGA height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)+- 3D model files: `ad8233acbz-r7-etched.step` / `ad8233acbz-r7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad8233acbz-r7.step` / `ad8233acbz-r7.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Analog Devices datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901825500360704) (29 pp, sha256 `de233c71aebba2ca`, retrieved 2026-10-17, tier: lcsc)+- **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](docs/ad8233acbz-r7-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "data acquisition",+ "ad8233acbz-r7",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ad8233acbz-r7.kicad_sym",+ "ad8233acbz-r7.kicad_mod",+ "ad8233acbz-r7.glb",+ "ad8233acbz-r7.step",+ "ad8233acbz-r7.lbr",+ "docs/hero.png",+ "docs/ad8233acbz-r7-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "ad8233acbz-r7-hero.glb",+ "ad8233acbz-r7-hero.overlay.json",+ "ad8233acbz-r7-etched.glb"+ ],+ "component": {+ "mpn": "AD8233ACBZ-R7",+ "manufacturer": "Analog Devices",+ "package": "WLCSP-20(1.7x2)",+ "pin_count": 20,+ "category": "Data Acquisition",+ "subcategory": "Analog To Digital Converters (ADC)",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901825500360704",+ "parts": {+ "symbol": "ad8233acbz-r7.kicad_sym",+ "footprint": "ad8233acbz-r7.kicad_mod",+ "model_3d": "ad8233acbz-r7-hero.glb",+ "model_3d_plain": "ad8233acbz-r7-etched.glb",+ "model_3d_step": "ad8233acbz-r7-etched.step",+ "model_3d_step_plain": "ad8233acbz-r7.step",+ "lbr": "ad8233acbz-r7.lbr"+ },+ "distributor_links": {+ "lcsc": "C209349",+ "digikey": "505-AD8233ACBZ-R7TR-ND"+ },+ "distributor_check": {+ "checked_at": "2026-10-17T23:39:59Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "505-AD8233ACBZ-R7TR-ND",+ "status": "found"+ },+ "mouser": {+ "pn": null,+ "status": "quota"+ }+ },+ "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."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Package option code is inconsistent within the datasheet: the Ordering Guide (page 29) lists AD8233A; The SW pin type is not stated in the datasheet; 'passive' was chosen because it is described only as; The input text covers only pages 1-3, 6-8, and 28-29 of 29 pages. The full 20-ball pin map (Table 5 "+ ],+ "pages_sent": 8,+ "cost_usd": 0.0569,+ "at": "2026-10-17T23:36:35"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901825500360704",+ "pages": 29,+ "sha256": "de233c71aebba2ca",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 20,+ "described": 20,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "ad8233acbz-r7.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 1.994,+ 1.609,+ 0.552+ ],+ "zmin_mm": -0.029,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "9a4ebc567f0e92b51c6fefad32a307013c19091ad92d1d7ef9fb6bb271331215",+ "checked": "2026-10-17",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "ad8233acbz-r7-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 1.994,+ 1.609,+ 0.552+ ],+ "zmin_mm": -0.029,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "e93b6a1ebd9ea0131d796669edc86642f9e17f3a9c72e04e8f5f1b8fba4656a9",+ "checked": "2026-10-17",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}
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