Part Review and Datasheet Verification

flux

Reviewed the ADS1293CISQ/NOPB part against the official TI datasheet.
Datasheet: already resolves to TI’s official ADS1293 datasheet; no update was needed.
MPN/package: ADS1293CISQ/NOPB, TI, WQFN/RSG, 28 pins, 5 × 5 mm body, –20°C to 85°C.
Key specs: 3-channel 24-bit ECG AFE, VDD 2.7–5.5 V, VDDIO 1.65–3.6 V or ≤ VDD, up to 25.6 ksps pace / 6.4 ksps ECG, ±400 mV differential input range, 7 µVpp noise over 0.1–40 Hz high-resolution mode.
Cross-check result: pins 1–28 match the datasheet names and numbering. The footprint has 29 pads, which is plausible for 28 leads plus exposed/DAP pad, but the extra pad is currently named GND / pin 29. The datasheet identifies DAP as no-connect, not GND, so this is the main mismatch to fix. Also, all terminal pin types are currently Unspecified; they should be updated to Analog Input/Output/I/O, Digital Input/Output/I/O, Supply, or No Connect per the datasheet.
adrian95

adrian95

Update all terminal pin types to match the datasheet pin function table also add section for all the pins based on the datasheet

flux

I’ll update each terminal’s Pin Type and Section from the ADS1293 datasheet pin-function table, then verify the properties on the schematic.

flux

Updated and verified all ADS1293 terminals with datasheet-based Pin Type and Section properties.
Notable update: the extra pad currently named GND / pin 29 was marked No Connect and sectioned as Exposed Pad / DAP, with its pin description set to “DAP; no connect per datasheet.” The tool accepted the datasheet-exact pin type labels, though some are outside Flux’s standard pin-type suggestions.
Use standard pin types
Rename DAP pad
Add pin descriptions
Run part review
Verify footprint geometry
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    Assets

    ADS1293CISQNOPB-thumb.png

    ADS1293CISQNOPB-thumb.png

    ADS1293CISQNOPB-thumbThumbnail
    kicad_mod

    ADS1293CISQ_NOPB

    QFN50P500X500X80-29N.kicad_modFootprint
    stp

    ADS1293CISQ_NOPB

    ADS1293CISQ_NOPB.stp3D Model
    ADS1293CISQ_NOPB

    ADS1293CISQ_NOPB

    ADS1293CISQ_NOPB Symbol.svgDefault

    ADS1293CISQ/NOPB

    ADS1293CISQ/NOPB thumbnail
    3 Channel AFE 24 Bit 28-WQFN (5x5)
    ADS1293CISQ/NOPB is a highly integrated, low-power 3-channel ECG Analog Front-End (AFE) from Texas Instruments. It is designed for portable and battery-powered medical devices, fitness monitors, heart-rate monitoring systems, Holter monitors, and other electrocardiogram (ECG) applications. The device integrates signal acquisition, filtering, lead-off detection, right-leg drive generation, and high-resolution analog-to-digital conversion into a single IC, reducing external component count and system cost.
    Key Features Three high-resolution ECG acquisition channels 24-bit analog-to-digital conversion Simultaneous pace detection support Ultra-low power consumption of approximately 0.3 mW per channel Low input-referred noise of 7 µVpp (40 Hz bandwidth) Programmable sample rates up to 25.6 ksps Differential input voltage range of ±400 mV Integrated EMI-hardened input filters Flexible input routing matrix Built-in Right-Leg Drive (RLD) amplifier AC and DC lead-off detection Integrated Wilson and Goldberger terminal generation Battery voltage monitoring capability Internal oscillator and voltage reference ALARMB pin for interrupt-driven diagnostics and fault reporting Multiple power-down and standby modes for battery-powered systems SPI-compatible digital interface Operating temperature range: –20°C to +85°C 28-pin WQFN package (5 mm × 5 mm) Typical Applications Portable 1-, 3-, 5-, 6-, 7-, 8-, and 12-lead ECG systems Holter monitors Event recorders Telemedicine devices Patient vital-sign monitoring equipment Automated External Defibrillators (AEDs) Sports and fitness heart-rate monitors Wearable medical devices Hashtags
    #commonpartslibrary #integratedcircuit #TexasInstruments #ADS1293 #AFE #AnalogFrontEnd #ECG #Electrocardiogram #MedicalElectronics #HealthTech #WearableDevices #HeartRateMonitor #PatientMonitoring #BiomedicalEngineering #24BitADC #LowPowerDesign #SPI #SignalConditioning #PortableMedicalDevices #HolterMonitor #Telemedicine #VitalSignsMonitoring #EmbeddedSystems #MixedSignalIC #WQFN28 #BatteryPoweredDevices #MedicalInstrumentation

    Properties

    ADS1293CISQ/NOPB

    Texas Instruments

    Integrated Circuit

    ti.com/lit/gpn/ads1293

    IC

    parametric-v1

    creativecommons.org/licenses/by/4.0/

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