MCP3550

@@ -1,8 +1,11 @@ {+  "schema_version": 1,+  "type": "component",   "slug": "mcp3550",+  "title": "MCP3550",+  "brief": "Microchip 22-bit low-power delta-sigma ADC, MSOP-8. SPI, single differential input, on-chip 50/60 Hz rejection. Datasheet-verified.",   "version": "0.1.0",-  "type": "component",-  "description": "Microchip 22-bit low-power delta-sigma ADC, MSOP-8. SPI, single differential input, on-chip 50/60 Hz rejection. Datasheet-verified.",+  "license": "CC-BY-SA-4.0",   "tags": [     "component",     "data-converter",@@ -13,6 +16,123 @@     "msop-8",     "microchip"   ],+  "component": {+    "mpn": "MCP3550",+    "manufacturer": "Microchip",+    "package": "MSOP-8",+    "pin_count": 8,+    "category": "Data Converter",+    "subcategory": "Delta-sigma ADC",+    "datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/20001950F.pdf",+    "parts": {+      "symbol": "mcp3550.kicad_sym",+      "footprint": "mcp3550.kicad_mod",+      "model_3d": "mcp3550.glb",+      "model_3d_step": "mcp3550.step",+      "lbr": "mcp3550.lbr"+    },+    "distributor_links": {},+    "pins": [+      {+        "number": "1",+        "name": "VREF",+        "type": "input",+        "description": "Reference voltage analog input. Accepts a single-ended reference from 0.1 V to VDD; sets the full-scale conversion range (2*VREF differential). Lower VREF reduces INL error (which scales with VREF^2) but does not significantly reduce output noise."+      },+      {+        "number": "2",+        "name": "VIN+",+        "type": "input",+        "description": "Non-inverting analog input of the differential ADC. Together with VIN-, forms the fully differential measurement input; ensured accuracy from -VREF to +VREF with about 12% overrange available at room temperature."+      },+      {+        "number": "3",+        "name": "VIN-",+        "type": "input",+        "description": "Inverting analog input of the differential ADC. Absolute voltage on VIN+/VIN- must remain within VSS-0.3 V to VDD+0.3 V; exceeding this range activates ESD diode leakage and degrades performance."+      },+      {+        "number": "4",+        "name": "VSS",+        "type": "power_in",+        "description": "Ground return for both analog and digital circuitry. Should be tied to the analog ground plane of the PCB when one is available."+      },+      {+        "number": "5",+        "name": "SCK",+        "type": "input",+        "description": "Serial clock digital input. Synchronizes data shifted out on SDO on the falling edge; input is latched on the rising edge. Supports SPI modes 0,0 and 1,1 up to 5 MHz; may idle high or low while CS is high. VIH = 0.7*VDD, VIL = 0.4 V."+      },+      {+        "number": "6",+        "name": "SDO/RDY",+        "type": "output",+        "description": "Serial data output / ready flag. Goes active-low when a conversion completes to signal ready; subsequent SCK falling edges then shift out a 24-bit word (2 overflow bits + 22 data bits). Enters high-impedance when CS is high. VOH >= VDD-0.5 V, VOL <= 0.4 V at 1 mA."+      },+      {+        "number": "7",+        "name": "CS",+        "type": "input",+        "description": "Active-low chip select. Gates all SPI communication and controls internal conversions - a conversion begins on the falling edge of CS. Raising CS before conversion completes selects Single-Conversion mode; leaving CS low selects Continuous-Conversion mode and may be tied permanently low for 2-wire operation."+      },+      {+        "number": "8",+        "name": "VDD",+        "type": "power_in",+        "description": "Positive supply, 2.7-5.5 V. Requires a 0.1 uF bypass capacitor. Typical IDD is 100-140 uA depending on part/VDD; sleep/shutdown current is ~1-10 uA."+      }+    ],+    "provenance": {+      "extractor": "ds2sf",+      "datasheet": {+        "url": "https://ww1.microchip.com/downloads/en/DeviceDoc/20001950F.pdf",+        "pages": 40,+        "sha256": "87917c931a7d2bf4",+        "source_tier": "mfr"+      },+      "cad": "KiCad official (CC-BY-SA 4.0)",+      "pins": {+        "total": 8,+        "described": 8,+        "cites_pages": true,+        "refuses_to_fabricate": true+      }+    },+    "viewers": {+      "symbol": "viewers/symbol.html",+      "footprint": "viewers/footprint.html"+    }+  },+  "metadata": {+    "specs": {+      "Type": "22-bit delta-sigma ADC",+      "Channels": "1 differential",+      "Interface": "SPI",+      "Line rejection": "50 Hz or 60 Hz (part option)",+      "Supply current": "120 uA (typ)",+      "Reference": "External (VREF)",+      "Supply": "2.7-5.5 V",+      "Package": "MSOP-8"+    }+  },+  "sections": [+    "hero",+    "viewers",+    "readme",+    "breadcrumbs",+    "info"+  ],+  "discovery_triggers": [+    "mcp3550",+    "22-bit adc",+    "low power delta sigma adc",+    "precision adc spi"+  ],+  "discovery_pitch": "Microchip MCP3550 22-bit delta-sigma ADC (MSOP-8) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  },   "dependencies": {},   "hero": {     "type": "image",@@ -30,10 +150,5 @@     "docs/mcp3550-datasheet.pdf",     "viewers/symbol.html",     "viewers/footprint.html"-  ],-  "visibility": "public",-  "author": {-    "name": "Ray",-    "email": "[email protected]"-  }+  ] }\ No newline at end of file