component
ADS8681
Public Made by Adomby adom
TI 18-bit, 1 MSPS SAR ADC with integrated reference, QFN-16. Bipolar input range, SPI. Datasheet-verified.
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ads8681: datasheet-first component page (KiCad sym+mod+step+lbr, hero, viewers)
1 file changed
+171−8
page.json+171−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "ads8681",+ "title": "ADS8681",+ "brief": "TI 18-bit, 1 MSPS SAR ADC with integrated reference, QFN-16. Bipolar input range, SPI. Datasheet-verified.", "version": "0.1.0",- "type": "component",- "description": "TI 18-bit, 1 MSPS SAR ADC with integrated reference, QFN-16. Bipolar input range, SPI. Datasheet-verified.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "data-converter",@@ -13,6 +16,171 @@ "qfn-16", "texas-instruments" ],+ "component": {+ "mpn": "ADS8681",+ "manufacturer": "Texas Instruments",+ "package": "QFN-16",+ "pin_count": 16,+ "category": "Data Converter",+ "subcategory": "SAR ADC",+ "datasheet": "https://www.ti.com/lit/ds/symlink/ads8681.pdf",+ "parts": {+ "symbol": "ads8681.kicad_sym",+ "footprint": "ads8681.kicad_mod",+ "model_3d": "ads8681.glb",+ "model_3d_step": "ads8681.step",+ "lbr": "ads8681.lbr"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground pin. Decouple with the AVDD pin."+ },+ {+ "number": "2",+ "name": "REFIO",+ "type": "bidirectional",+ "description": "Internal 4.096 V reference output and external reference input pin. Decouple with REFGND."+ },+ {+ "number": "3",+ "name": "REFGND",+ "type": "power_in",+ "description": "Reference ground pin; short to the analog ground plane. Decouple with the REFIO and REFCAP pins."+ },+ {+ "number": "4",+ "name": "REFCAP",+ "type": "passive",+ "description": "ADC reference buffer decoupling capacitor pin. Decouple with the REFGND pin."+ },+ {+ "number": "5",+ "name": "AIN_P",+ "type": "input",+ "description": "Analog input: positive. Constant resistive input impedance \u22651 M\u03a9 with overvoltage protection up to \u00b120 V. Decouple with the AIN_GND pin."+ },+ {+ "number": "6",+ "name": "AIN_GND",+ "type": "input",+ "description": "Analog input: negative. Constant resistive input impedance \u22651 M\u03a9 with overvoltage protection up to \u00b120 V. Decouple with the AIN_P pin."+ },+ {+ "number": "7",+ "name": "RST",+ "type": "input",+ "description": "Active low logic input to reset the device."+ },+ {+ "number": "8",+ "name": "SDI",+ "type": "input",+ "description": "Dual function: data input pin (MOSI) for serial communication; chain data input during serial communication in daisy-chain mode."+ },+ {+ "number": "9",+ "name": "CONVST/CS",+ "type": "input",+ "description": "Dual-function pin. Active-high logic: CONVST rising edge starts a conversion (acquisition\u2192conversion). Active-low logic: chip-select input; device drives the data bus when CS is low, SDO-x go tri-state when CS is high."+ },+ {+ "number": "10",+ "name": "SCLK",+ "type": "input",+ "description": "Serial communication clock input pin; all system-synchronous data transfer protocols are timed with respect to SCLK."+ },+ {+ "number": "11",+ "name": "SDO-0",+ "type": "output",+ "description": "Serial communication: data output 0 (MISO)."+ },+ {+ "number": "12",+ "name": "SDO-1",+ "type": "output",+ "description": "Multifunction output pin: active-high ALARM flag, data output 1 for serial communication, or general-purpose output. Function selected via configuration register."+ },+ {+ "number": "13",+ "name": "RVS",+ "type": "output",+ "description": "Multifunction output pin for serial interface. With CS high, RVS reflects the internal ADCST signal; with CS low, RVS status depends on the output protocol selection."+ },+ {+ "number": "14",+ "name": "DVDD",+ "type": "power_in",+ "description": "Digital supply pin (1.65 V to AVDD, nominal 3.3 V). Decouple with the DGND pin."+ },+ {+ "number": "15",+ "name": "DGND",+ "type": "power_in",+ "description": "Digital ground pin. Decouple with the DVDD pin."+ },+ {+ "number": "16",+ "name": "AVDD",+ "type": "power_in",+ "description": "Analog supply pin (4.75 V to 5.25 V nominal 5 V). Decouple with the AGND pin."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/ads8681.pdf",+ "pages": 75,+ "sha256": "7352b44f82a9fefd",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "metadata": {+ "specs": {+ "Type": "18-bit SAR ADC",+ "Throughput": "1 MSPS",+ "Input": "Single-ended, bipolar/unipolar ranges",+ "Interface": "SPI",+ "Reference": "Integrated + buffer",+ "Extras": "ALARM over-range flag",+ "Supply": "AVDD 5 V, DVDD 1.65-5.5 V",+ "Package": "QFN-16"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "ads8681",+ "18-bit adc",+ "1msps sar adc",+ "precision adc bipolar input"+ ],+ "discovery_pitch": "TI ADS8681 18-bit 1 MSPS SAR ADC (QFN-16) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -30,10 +198,5 @@ "docs/ads8681-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }