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Results on Analog.com

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  1. Introduction to Digital Stethoscopes and Electrical Component Selection Criteria
    Technical Articles
    May 10, 2010
    Tutorial discusses electronic design of digital stethoscopes. It explains the audio signal path including the audio codec electronics and audio frequency requirements. Functional blocks for a design include data storage and transfer, display and backlighting, power management, and battery management.
  2. Using the MAX6951/MAX6950 LED Display Drivers with SPI Interface to Communicate with the MAXQ2000 Microcontroller
    Application Note
    This application note describes assembly language techniques for the MAX6951/50 LED drivers using the MAXQ2000’s SPI peripheral.
  3. Important Design Considerations for Heart-Rate and Fitness Monitors
    Technical Articles
    May 10, 2010
    Article explains types of heart-rate and fitness monitors, the design considerations taken to enabled USB and RF communications between devices and the importance of low-power components.
  4. Options for Embedded User Interfaces
    Design Note
    The article describes different options for today's embedded systems including LCD and LEDs.
  5. CN0394
    Circuits from the Lab
    Flexible, Low Power, 4-Channel Thermocouple System with Arduino-Compatible Analog Interface

    Documentation

  6. Integrated Home Health Monitoring
    Technical Articles
    Oct 31, 2017

    Vidushi Kshatri

    In this article, we introduce an integrated home health monitoring system that is inclusive of a vision-based, activity monitoring system and a vital sign monitoring system.
  7. AN-661: ADuC814 to ADM1032 via I2C® Interface
    Application Note

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    ZIP

    3 kB

  8. How to Design Motor Encoders for Next-Generation Sustainable Applications
    Analog Dialogue

    Richard Anslow

    This article provides an overview of motor encoders (position and speed), including types and technologies, application use cases, and answers key questions such as what encoder performance metrics are the most critical for my system?
  9. A Complete Guide to Designing Your Smart Wireless Industrial Sensor
    Analog Dialogue

    Richard Anslow

    This article provides an overview of wireless standards and assesses the suitability of BLE, SmartMesh (6LoWPAN over IEEE 802.15.4e), and Thread/Zigbee (IEEE 802.15.4) for use in industrial harsh RF environments.
  10. UG-6806: MAX32664 User Guide
    User Guide
    The MAX32664 user guide provides flow charts, timing diagrams, GPIOs/pin usage, I2C interface protocol, and annotated I2C traces between the host microcontroller and the MAX32664. Typical application uses the MAX32664 as a low-power microcontroller in a sensor hub configuration to provide processed data such as heart rate and SpO2.

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    1. The number of significant figures in .measure statement output is now around 12 instead of the usual 6. Tried adding .options measdgt 6 but it's still 12. Is there a GUI for this too? I can't find it in Tools > Settings > SPICE

      Forum Thread
      Answered
      LTspice
      03 April, 2025
      .meas DC VO_typ FIND V(VO) AT 25
      Measurementssoftware.measure.meas24.1.6measdgtsignificant figures

    2. FPGA code

      Forum Thread
      Answered
      High-Speed DACs
      03 April, 2025
      HI I am requested for the SPARTAN-6 FPGA source code on SDP-H1 for EVAL-AD9744. I need to refer to ADI's dpg software to send digital code values to the FPGA through the host computer and then transfer it to the AD9744, is there a GUI and …
      Standard High Speed D/A ConvertershardwareAD9744 -FMC-EBZguiFPGA image fileHigh Speed D/A Converters =30MSPSFPGA Source Codedac

    3. AD9744ACP-PCBZ DAC Board Clock and Data

      Forum Thread
      Answered
      High-Speed DACs
      03 April, 2025
      Hi I am trying to implement AD9744 interface in Zynq FPGA. Looking at the timing diagram (Fig.2) in the AD9744 data-sheet, the DB lines just need to meet the setup and hold time w.r.t. the rising edge of the clock. There is also a suggestion in …
      ad9744Standard High Speed D/A Convertershigh_speed_adcHigh Speed D/A Converters =30MSPSad9744acp-pcbz

    4. ADR3625 Constant Current Source (Figure 80)

      Forum Thread
      Answered
      Voltage References
      02 April, 2025
      I am looking to design a board with stable constant current outputs of 100mA, 10mA, and 1mA. The exact value is not important, only stability. The requirement is that the current be stable to 0.05% over time and temperature (ambient is lab environment of 20-30C). I found this …
      Datasheet/SpecsCurrent ReferenceSeries Voltage ReferencesADR3625Series Voltage Referencevoltage referencesLDO Linear RegulatorsPositive Linear Regulators (LDO)

    5. LTC3300-1 (Daisy Chain) – Bottom Chip Not Responding to Read Balance Status ()

      Forum Thread
      Answered
      Power Management
      02 April, 2025
      Description: We are using an STM32G4 MCU to communicate with three LTC3300-1 chips via SPI in daisy chain configuration. The SPI settings are: Mode: 3 (CPOL = 1, CPHA = 1) Clock Speed: 750 kbps Data Frame Format: 8 bits We have verified that: TOS and VMODE signals are correct …
      hardwareBattery Cell Balancersltc3300-1battery managementLTC3300 SPIltc3300LTC3300 Communication

    6. Thermal Info

      Forum Thread
      Answered
      Interface and Isolation
      02 April, 2025
      Hello, I'm looking for the max rated junction temperature device of this component and the internal thermal resistance such as theta_jc, theta_jb, etc. Thanks.
      RS-232 and RS-562hardwareMAX3225EEUP/V+RS-232 / RS-422 / RS-485 / RS-562MAX3225E

    7. Dynamic bit selection AD9361

      Forum Thread
      Answered
      FPGA Reference Designs
      02 April, 2025
      I am using the FMCOMMS5 with ZCU102. The outputs of the AD9361s (util_wfifo) are 16bits (12bit data + 4 random for I, and the same for Q), and I want to dynamically select 4 bits out of the 12 data bits to use for processing. This will alleviate the processing …
      hardwaread9361fmcomms5Wideband Transceiver ICRF Integrated Transceivers

    8. GUI control to allow selection of LO1 & LO2

      Forum Thread
      Answered
      Design Support ADRV9001 – ADRV9007
      02 April, 2025
      We want to use the internal loopback feature of the ADRV9004 to perform r.f. to i.f. translation (e.g., using RX1 & TX1 to translate, say a 2 GHz carrier with 40 MHz bandwidth to 400 MHz). Similarly, we want to use the the internal loopback feature of RX2 …
      softwaretransceiverADRV9002 Eval BoardADRV900xADRV9004Wideband Transceiver ICinitializationRF Integrated Transceivers

    9. Thermal Info

      Forum Thread
      Answered
      Voltage References
      02 April, 2025
      Hi, I'm looking for the max junction temperature rating and internal thermal resistances (e.g., theta_jb, theta_jc, etc.) for this device. The exact part number I have is MAX6161AESA+. Thanks.
      MAX6161hardwareSeries Voltage Referencesvoltage references

    10. Issues with SPI Phase Shift and Readback on ADAR1000 Custom PCB

      Forum Thread
      Answered
      RF and Microwave
      02 April, 2025
      #include int cs = 10;void setup(){Serial.begin(115200);SPI.begin();pinMode(cs,OUTPUT); // Selecting the chip select as o/pdelay(1000);// --4-Wire SPI Mode// -- Begin communicatin with cs low and after communication cs highdigitalWrite(cs, LOW); //Begin CommunicationSPI.transfer(); //Start address //Register of higher byteSPI.transfer(); //Register …
      Phase ShiftershardwareBeamformers Phase Shifters and Vector Modulatorsspi communicationadar1000BeamformersVector Modulatorsspi interferencephase shiftand Vector Modulators