Analog.com Analog Dialogue Wiki 简体中文
EngineerZone
EngineerZone
  • Log In
  • Site
  • Search
  • User
  • Support

    Popular Forums

    • RF and Microwave
    • Power Management
    • Video
    • FPGA Reference Designs
    • Precision ADCs
    • Linux Software Drivers
    • SigmaDSP Processors & SigmaStudio Dev. Tool

    Product Forums

    • A2B
    • Amplifiers
    • Analog Microcontrollers
    • Clock and Timing
    • Data Converters
    • Direct Digital Synthesis (DDS)
    • Energy Monitoring and Metering
    • Interface and Isolation
    • MEMS Inertial Sensors
    • Processors and DSP
    • Switches/Multiplexers
    • Temperature Sensors
    • Voltage References
    View All

    Application Forums

    • Audio
    • Automated Test Equipment (ATE)
    • Condition-Based Monitoring
    • Depth, Perception & Ranging Technologies
    • Embedded Vision Sensing
    • Motor Control Hardware Platforms
    • Optical Sensing
    • Precision Technology Signal Chains
    • Video
    • Wireless Sensor Networks Reference Library

    Design Center Forums

    • ACE Evaluation Software
    • ADEF System Platforms
    • Design Tools and Calculators
    • FPGA Reference Designs
    • Linux Software Drivers
    • Microcontroller no-OS Drivers
    • Reference Designs
    • Signal Chain Power (SCP)
    • Software Interface Tools
    • System Demonstration Platform (SDP) Support
  • Learn

    Highlighted Webinar

    Robust Industrial Motor Encoder Signal Chain Solutions

    Recent Discussions

    • About the values of CurV1,2 displayed in the cursors frame of scopy.
    • Purpose of "Load" in Scopy signal generator configuration GUI
    • about the transient response experiment example of RL Circuit using adalm2000
    • Using ADALM1000 AIN and CHA as kelvin connection
    • I2C communication with ADALM2OOO Through Scopy

    Places

    • ADI Education Home
    • ADI Education China
    • ADI Education India
    • ADI Education Philippines
    • StudentZone (Analog Dialogue)
    • Virtual Classroom

    Latest Webinars

    • Robust Industrial Motor Encoder Signal Chain Solutions
    • Precision Low Power Measurement Solutions for Intelligent Edge
    • Advantages of Integrating Digital Power System Management (DPSM) into your Design
    • Optimizing GaN and GaAs RF Amplifier Performance Using Novel Biasing Techniques
    • Improving Switch-Mode Power Supplies Using Noise Cancelling Technology
    View All Webinars
  • Community Hub

    Challenge Yourself!

      KCC's Quizzes AQQ230 about a clock and angle puzzle
    View All

    Places

    • Community Help
    • Logic Lounge

    Resources

    • EZ Code of Conduct
    • Getting Started Guide
    • ADI: Words Matter
    • Community Help Videos
    View All
  • Blogs

    Highlighted Blogs

    What is The Continuity of Engineering?

     

    Move Over Sensors: Actuators Are Entering The Smart Factory Stage

    Latest Blogs

    • What To Call A Non-Compliant Item
    • How to Construct a Beamformer with the ADALM-PLUTO
    • Customize Your EZ Experience
    • What is the True Value of LTspice?
    • The Limits of AI: Testing ChatGPT’s Performance in Engineering
    Read All Blogs

    ADI Blogs

    • EZ Spotlight
    • The Engineering Mind
  • Partners

    Electronic Design Services - PartnerZone

    • Boston Engineering
    • Calian, Advanced Technologies
    • Colorado Engineering Inc. (DBA CAES AT&E)
    • Clockworks Signal Processing
    • Epiq Solutions
    • Fidus
    • PalmSens
    • Richardson RFPD
    • Tri-Star Design, Inc.
    • VadaTech
    • Vanteon
    • X-Microwave
    View All
Precision ADCs
  • Data Converters
Precision ADCs
Documents What’s the difference between the AD7606 and the AD7606B?
  • Forums
  • File Uploads
  • FAQs/Docs
  • Members
  • Tags
  • More
  • Cancel
  • +Documents
  • +General: FAQ
  • +AD1139: FAQ
  • +AD1556: FAQ
  • +AD1580: FAQ
  • +AD1582: FAQ
  • +AD2S1200: FAQ
  • +AD2S1205: FAQ
  • +AD2S1210: FAQ
  • +AD2S75: FAQ
  • +AD2S80: FAQ
  • +AD2S80A: FAQ
  • +AD2S82A: FAQ
  • +AD2S83: FAQ
  • +AD2S90: FAQ
  • +AD2S99: FAQ
  • +AD4110-1: FAQ
  • +AD411x: FAQ
  • +AD5940: FAQ
  • +AD598: FAQ
  • +AD650: FAQ
  • +AD652: FAQ
  • +AD654: FAQ
  • +AD7091: FAQ
  • +AD7091r: FAQ
  • +AD711: FAQ
  • +AD7124-4: FAQ
  • +AD7124-8: FAQ
  • +AD7134: FAQ
  • +AD713: FAQ
  • +AD7142: FAQ
  • +AD7147: FAQ
  • +AD7148: FAQ
  • +AD7150: FAQ
  • +AD7151: FAQ
  • +AD7175-2: FAQ
  • +AD7176-2: FAQ
  • +AD7176: FAQ
  • +AD717x: FAQ
  • +AD7190: FAQ
  • +AD7192: FAQ
  • +AD7193: FAQ
  • +AD7195: FAQ
  • +AD719x: FAQ
  • +AD7265: FAQ
  • +AD7266: FAQ
  • +AD7280: FAQ
  • +AD7291: FAQ
  • +AD7298: FAQ
  • +AD7305: FAQ
  • +AD7321: FAQ
  • +AD7323: FAQ
  • +AD7328: FAQ
  • +AD7366-5: FAQ
  • +AD7367: FAQ
  • +AD736ARZ: FAQ
  • +AD737: FAQ
  • +AD7380 : FAQ
  • +AD7398: FAQ
  • +AD7400A: FAQ
  • +AD7401: FAQ
  • +AD7403: FAQ
  • +AD74111: FAQ
  • +AD7415: FAQ
  • +AD7416: FAQ
  • +AD7417: FAQ
  • +AD7418: FAQ
  • +AD7450: FAQ
  • +AD7475: FAQ
  • +AD7484: FAQ
  • +AD7490: FAQ
  • +AD7492: FAQ
  • +AD75019: FAQ
  • +AD7503: FAQ
  • +AD7541A: FAQ
  • +AD7546: FAQ
  • +AD7547: FAQ
  • +AD7568: FAQ
  • +AD7578: FAQ
  • +AD7606-4: FAQ
  • +AD7606: FAQ
  • -AD7606B: FAQ
    • What’s the difference between the AD7606 and the AD7606B?
    • Can the analog input be applied before the supply is ready?
    • How many SPI frames do I need in order to read registers?
    • What are the benefits of Software mode compared to Hardware mode or AD7606
  • +AD7606C: FAQ
  • +AD7608: FAQ
  • +AD7616 FAQ
  • +AD7616-P: FAQ
  • +AD7621: FAQ
  • +AD7625: FAQ
  • +AD7626: FAQ
  • +AD7631: FAQ
  • +AD7653: FAQ
  • +AD7654: FAQ
  • +AD7655: FAQ
  • +AD7656: FAQ
  • +AD7657-1: FAQ
  • +AD7663: FAQ
  • +AD7674: FAQ
  • +AD7675: FAQ
  • +AD7678: FAQ
  • +AD7682: FAQ
  • +AD7683: FAQ
  • +AD7684: FAQ
  • +AD7685: FAQ
  • +AD7688: FAQ
  • +AD7689: FAQ
  • +AD7690: FAQ
  • +AD7691: FAQ
  • +AD7705: FAQ
  • +AD7706: FAQ
  • +AD7707: FAQ
  • +AD7708: FAQ
  • +AD7709: FAQ
  • +AD7710: FAQ
  • +AD7711A: FAQ
  • +AD7712: FAQ
  • +AD7713: FAQ
  • +AD7714: FAQ
  • +AD7714YN: FAQ
  • +AD7715: FAQ
  • +AD7716: FAQ
  • +AD7718: FAQ
  • +AD7719: FAQ
  • +AD7720: FAQ
  • +AD7722: FAQ
  • +AD7725: FAQ
  • +AD7730: FAQ
  • +AD7731: FAQ
  • +AD7732: FAQ
  • +AD7738: FAQ
  • +AD7740: FAQ
  • +AD7741: FAQ
  • +AD7745: FAQ
  • +AD7746: FAQ
  • +AD7747: FAQ
  • +AD7760: FAQ
  • +AD7763: FAQ
  • +AD7766: FAQ
  • +AD7768: FAQ
  • +AD777x: FAQ
  • +AD7780: FAQ
  • +AD7785: FAQ
  • +AD7787: FAQ
  • +AD7788: FAQ
  • +AD7790: FAQ
  • +AD7792: FAQ
  • +AD7793: FAQ
  • +AD7794: FAQ
  • +AD7795: FAQ
  • +AD7798: FAQ
  • +AD7799: FAQ
  • +AD7805: FAQ
  • +AD7808: FAQ
  • +AD7809: FAQ
  • +AD780: FAQ
  • +AD7811: FAQ
  • +AD7812: FAQ
  • +AD7817: FAQ
  • +AD7819: FAQ
  • +AD7821: FAQ
  • +AD7825: FAQ
  • +AD7829: FAQ
  • +AD7835: FAQ
  • +AD7849: FAQ
  • +AD7851: FAQ
  • +AD7854: FAQ
  • +AD7856: FAQ
  • +AD7858: FAQ
  • +AD7859: FAQ
  • +AD7864: FAQ
  • +AD7865 : FAQ
  • +AD7872: FAQ
  • +AD7874: FAQ
  • +AD7879: FAQ
  • +AD7887: FAQ
  • +AD7888: FAQ
  • +AD7891-1: FAQ
  • +AD7891: FAQ
  • +AD7893-2: FAQ
  • +AD7895: FAQ
  • +AD7896: FAQ
  • +AD7899: FAQ
  • +AD7912: FAQ
  • +AD7921: FAQ
  • +AD7924: FAQ
  • +AD7927: FAQ
  • +AD7938: FAQ
  • +AD7942: FAQ
  • +AD7949: FAQ
  • +AD7960: FAQ
  • +AD7961: FAQ
  • +AD797: FAQ
  • +AD7980: FAQ
  • +AD7982: FAQ
  • +AD7984: FAQ
  • +AD7986: FAQ
  • +AD7988-1: FAQ
  • +AD7993: FAQ
  • +AD7994: FAQ
  • +AD7997: FAQ
  • +AD7998: FAQ
  • +ADA2200: FAQ
  • +ADAS1000: FAQ
  • +ADAS3022: FAQ
  • +ADAS3023: FAQ
  • +ADC: FAQ
  • +ADVFC32: FAQ
  • +EVAL-AD7719-EB: FAQ
  • +EVAL-ADAS3022EDZ: FAQ
  • +RDC1740: FAQ
  • +AD4116: FAQ
  • AD7398 SPI Voltage vs VCC
  • +DC590, DC2026, QuikEval: FAQs
  • +Legacy LTC - Sigma Delta ADCs FAQ
  • +Precision Technology Learning Modules
  • Programming FMC FRU ID EEPROM on Linux

What’s the difference between the AD7606 and the AD7606B?

Q: What’s the difference between the AD7606 and the AD7606B?

The AD7606B is a directly pin replacement for AD7606, with higher input impedance, throughput rate and extended temperature range, see A.N. 1559 for further details on how to migrate from AD7606 design into AD7606B.

However, by writing to its memory map, a series of advanced features can be enabled:

-system gain/offset/phase calibration,

-per channel analog input range selection (including +/-2.5V range),

-sensor disconnect detection

-additional oversampling ratios

-lower Vdrive operation

-diagnostics

Q: What sort of errors can be detected through AD7606B diagnostic features?

The AD7606B diagnostic features can be enabled to detect individually several errors like:

-an inadverted reset,

-an overvoltage or undervoltage situation,

-and spi read/write error,

-memory map or rom corruption,

-busy line getting stuck

In addition, a diagnostic mux, allows to dedicate any channel to measure internal nodes like supplies, reference, LDOS or a temperature sensor

Q: What are the benefits of turning oversampling mode on in the AD7606B?

By turning on the oversampling mode, the noise performance is improved. AD7606B allows up to 256 oversampling ratio in software mode. Note that the maximum throughput rate scales down with the oversampling ratio, being 800kSPS/OSR. Check the Software model in the AD7606B product page to see how OSR improves noise performance and limits the throughput.

Q: I have a series resistor in front of my analog inputs that causes a gain error, how can I calibrate this gain error off with AD7606B?

Having a series resistor in front of the ADC leads to having a system gain error. This system gain could be calibrated on the backend, however the AD7606B provides a feature to compensate this error by just programming the resistor value used on the front-end (up to 65kOhm). This gain calibration register reduces the burden of doing this task on the backend, and achieves it more precisely because the it uses the actual, factory trimmed, input impedance on each device. See A.N. 2011 for further details on AD7606B gain calibration feature, and simulate it through the Software model available on the product page.

Q: How does the offset or phase calibration work, what range and resolution do they achieve?

The offset calibration allows to add or subtract up to 128LSB to the ADC conversion result, in order to compensate for any known offset error on the front end (e.g. external resistor mismatch).

The phase calibration feature allows to delay, on any channel, the sampling instant up to 318.75 us, with a resolution of 1.25us.

See A.N. 2011 for further details on AD7606B offset and phase calibration feature, and simulate it through the Software model available on the AD7606B product page.

 

Q: What is the sensor disconnect detection feature implemented on AD7606B and how does it work?

The sensor disconnect detection, if enabled, alerts automatically when the input signal gets disconnected from the ADC analog inputs.  Alternatively, this feature can be used in manual mode. See A.N. 2011 for further details on how each mode works and how the implemented algorithm works.

 

Q: What ADC output code should I expect if the analog input pin is left floating?

It is good practice tying to ground any unused analog input pin. However, if the Vx pin is floating while the VxGND is tied to ground, the ADC result will be as per table below.

 

ADC CODE

ADC (V)

±10V range

6336

1.93

±5V range

10769

1.64

±2.5V range

16474

1.25

  • ad7606b
  • AD7606B_FAQ
  • Share
  • History
  • More
  • Cancel
Related
Recommended
Social
Quick Links
  • About ADI
  • ADI Signals+
  • Analog Dialogue
  • Careers
  • Contact us
  • Investor Relations
  • News Room
  • Quality & Reliability
  • Sales & Distribution
  • Incubators
Languages
  • English
  • 简体中文
  • 日本語
Newsletter

Interested in the latest news and articles about ADI products, design tools, training and events? Subscribe today!

Sign Up
Analog Logo
©1995 - 2023 Analog Devices, Inc. All Rights Reserved
沪ICP备09046653号-1
  • Sitemap
  • Legal
  • Privacy & Security
  • Privacy Settings
EngineerZone Uses cookies to ensure you get the best experience in our community. For more information on cookies, please read our Privacy & Security Statement.