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 Library
    • Motor Control Hardware Platforms
    • Optical Sensing
    • Precision Technology Signal Chains Library
    • 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

    Multidimensional Simulations of Beamformers and other RF Integrated Circuits in Keysight SystemVue

    Recent Discussions

    • Issue running built programs on Pluto
    • Activity: Simple Op Amps, For ADALM1000 Fig. 1.3 Buffering example
    • ADALM-PLUTO [NETWORK] vs [USB_ETHERNET]
    • Using buffer size different from 2**n
    • ADALM1000 Pixelpulse feature Source Voltage / Measure Current explanation

    Places

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

    Latest Webinars

    • Multidimensional Simulations of Beamformers and other RF Integrated Circuits in Keysight SystemVue
    • Improve Smart Building Energy Efficiency with Industrial Ethernet Controlled Air Conditioning (HVAC) Systems
    • Sustainable Motion Control Solutions for High Performance Servo Drives
    • Audio Design Solutions for Augmented and Virtual Reality (AR/VR) Glasses
    • Robust Industrial Motor Encoder Signal Chain Solutions
    View All Webinars
  • Community Hub

    Challenge Yourself!

      KCC's quizzes AQQ235 about a bipolar common emitter amplifier - a kind proposal from our colleague Martin Walker
    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

    Hardware Holds The Key To Making Industrial Systems IEC 62443 Compliant

     

    Behind the Scenes of DIYRadio Blogs: An Introduction

    Latest Blogs

    • Empowering Surveillance Cameras To Capture A Scene Without Being Heard
    • Mastering The Metrics Makes Specifying Encoders Simpler
    • Understanding Secret Key Cryptography Without Formulas
    • 3 Reasons Why IO-Link is Changing Smart Factory Decision Making
    • EMC Mitigation: The Finer Points of Ferrite Beads
    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
Amplifiers
Amplifiers
Documents AD8628: Signal sourcing
  • Forums
  • Video/Images
  • Members
  • Tags
  • More
  • Cancel
  • +Documents
  • Tags List Amplifiers
  • +General Information: FAQ
  • +AD59: FAQ
  • +AD202: FAQ
  • +AD203: FAQ
  • +AD210: FAQ
  • +AD215:FAQ
  • +AD22100: FAQ
  • +AD22151: FAQ
  • +AD22151G: FAQ
  • +AD594: FAQ
  • +AD600: FAQ
  • +AD603: FAQ
  • +AD604: FAQ
  • +AD605: FAQ
  • +AD608: FAQ
  • +AD620: FAQ
  • +AD621: FAQ
  • +AD623: FAQ
  • +AD623BRZ: FAQ
  • +AD626: FAQ
  • +AD628: FAQ
  • +AD629: FAQ
  • +AD630: FAQ
  • +AD632: FAQ
  • +AD633: FAQ
  • +AD636: FAQ
  • +AD637: FAQ
  • +AD664: FAQ
  • +AD734: FAQ
  • +AD7357BCPZ: FAQ
  • +AD736: FAQ
  • +AD811: FAQ
  • +AD817: FAQ
  • +AD822: FAQ
  • +AD823: FAQ
  • +AD825: FAQ
  • +AD829: FAQ
  • +AD846: FAQ
  • +AD855: FAQ
  • +AD8002: FAQ
  • +AD8005: FAQ
  • +AD80066: FAQ
  • +AD8009: FAQ
  • +AD8012: FAQ
  • +AD8015: FAQ
  • +AD8016: FAQ
  • +AD8019: FAQ
  • +AD8033: FAQ
  • +AD8036: FAQ
  • +AD8039: FAQ
  • +AD8041: FAQ
  • +AD8041S: FAQ
  • +AD8042: FAQ
  • +AD8045: FAQ
  • +AD8061: FAQ
  • +AD8066: FAQ
  • +AD8074: FAQ
  • +AD8075: FAQ
  • +AD8079: FAQ
  • +AD8105: FAQ
  • +AD8108: FAQ
  • +AD8111: FAQ
  • +AD8112: FAQ
  • +AD8113: FAQ
  • +AD8114: FAQ
  • +AD8128: FAQ
  • +AD8129: FAQ
  • +AD8130: FAQ
  • +AD8131: FAQ
  • +AD8132: FAQ
  • +AD8134: FAQ
  • +AD8137: FAQ
  • +AD8138: FAQ
  • +AD8138S: FAQ
  • +AD8139: FAQ
  • +AD8145: FAQ
  • +AD8174: FAQ
  • +AD8185: FAQ
  • +AD8191: FAQ
  • +AD8195: FAQ
  • +AD8207: FAQ
  • +AD8208: FAQ
  • +AD8210: FAQ
  • +AD8211: FAQ
  • +AD8214: FAQ
  • +AD8217: FAQ
  • +AD8218: FAQ
  • +AD8220: FAQ
  • +AD8221: FAQ
  • +AD8225: FAQ
  • +AD8227: FAQ
  • +AD8230: FAQ
  • +AD8231: FAQ
  • +AD8232: FAQ
  • +AD8237: FAQ
  • +AD8253: FAQ
  • +AD8265: FAQ
  • +AD8283: FAQ
  • +AD8295: FAQ
  • +AD8302: FAQ
  • +AD8304: FAQ
  • +AD8305: FAQ
  • +AD8306: FAQ
  • +AD8307: FAQ
  • +AD8309: FAQ
  • +AD8310: FAQ
  • +AD8314: FAQ
  • +AD8318: FAQ
  • +AD8319: FAQ
  • +AD8321: FAQ
  • +AD8324: FAQ
  • +AD8328: FAQ
  • +AD8330: FAQ
  • +AD8331: FAQ
  • +AD8332: FAQ
  • +AD8333: FAQ
  • +AD8334: FAQ
  • +AD8336: FAQ
  • +AD8337: FAQ
  • +AD8338: FAQ
  • +AD8339: FAQ
  • +AD8397: FAQ
  • +AD8421: FAQ
  • +AD8422: FAQ
  • +AD8428: FAQ
  • +AD8476: FAQ
  • +AD8495: FAQ
  • +AD8500: FAQ
  • +AD8515: FAQ
  • +AD8519: FAQ
  • +AD8532: FAQ
  • +AD8538: FAQ
  • +AD8541: FAQ
  • +AD8551: FAQ
  • +AD8552: FAQ
  • +AD8555: FAQ
  • +AD8556: FAQ
  • +AD8557: FAQ
  • +AD8561: FAQ
  • +AD8564: FAQ
  • +AD8567: FAQ
  • +AD8592: FAQ
  • +AD8597: FAQ
  • +AD8602: FAQ
  • +AD8605: FAQ
  • +AD8606: FAQ
  • +AD8608: FAQ
  • +AD8610: FAQ
  • +AD8611: FAQ
  • +AD8622: FAQ
  • +AD8624ARUZ: FAQ
  • -AD8628: FAQ
    • AD8628 minimum stable gain
    • AD8628: Signal sourcing
  • +AD8629: FAQ
  • +AD8638: FAQ
  • +AD8643ACPZ: FAQ
  • +AD8646: FAQ
  • +AD8648: FAQ
  • +AD8655: FAQ
  • +AD8661: FAQ
  • +AD8662: FAQ
  • +AD8666: FAQ
  • +AD8674: FAQ
  • +AD8675: FAQ
  • +AD8677: FAQ
  • +AD8682: FAQ
  • +AD9101: FAQ
  • +AD9257: FAQ
  • +ADA4000-2: FAQ
  • +ADA4004: FAQ
  • +ADA4077-2: FAQ
  • +ADA4096: FAQ
  • +ADA4096-2: FAQ
  • +ADA4302-4: FAQ
  • +ADA4350: FAQ
  • +ADA4411: FAQ
  • +ADA4500-2: FAQ
  • +ADA4528: FAQ
  • +ADA4528-X: FAQ
  • +ADA4637-1: FAQ
  • +ADA4661-2: FAQ
  • +ADA4666-2: FAQ
  • +ADA4807: FAQ
  • +ADA4807-2: FAQ
  • +ADA4817: FAQ
  • +ADA4895: FAQ
  • +ADA4897: FAQ
  • +ADA4897-1: FAQ
  • +ADA4898-2: FAQ
  • +ADA4899-1: FAQ
  • +ADA4922-1: FAQ
  • +ADA4927: FAQ
  • +ADA4930: FAQ
  • +ADA4938-1: FAQ
  • +ADA4940-1:FAQ
  • +ADA4941-1: FAQ
  • +ADA4950-1: FAQ
  • +ADA4960-1: FAQ
  • +ADCMP341: FAQ
  • +ADCMP343: FAQ
  • +ADCMP552: FAQ
  • +ADCMP553BRM: FAQ
  • +ADCMP566: FAQ
  • +ADCMP572: FAQ
  • +ADCMP573: FAQ
  • +ADCMP580: FAQ
  • +ADCMP600: FAQ
  • +ADCMP602: FAQ
  • +ADCMP609: FAQ
  • +EVAL-FW-BPDF1: FAQ
  • +EVAL-PRAOPAMP: FAQ
  • +MAT01: FAQ
  • +MAT02: FAQ
  • +Mat12: FAQ
  • +MAT14: FAQ
  • +OP07: FAQ
  • +OP1177: FAQ
  • +OP16: FAQ
  • +OP184: FAQ
  • +OP2177: FAQ
  • +OP279: FAQ
  • +OP27AZ: FAQ
  • +OP281: FAQ
  • +OP284: FAQ
  • +OP285: FAQ
  • +OP290: FAQ
  • +OP293: FAQ
  • +OP295GS: FAQ
  • +OP297GSZ: FAQ
  • +OP37: FAQ
  • +OP400S: FAQ
  • +OP4177: FAQ
  • +OP484AM: FAQ
  • +OP484S: FAQ
  • +OP497: FAQ
  • +OP90: FAQ
  • +OP97: FAQ
  • +Opamps: FAQ
  • +OPx177: FAQ
  • +REF01: FAQ
  • +REF02: FAQ
  • +REF02A: FAQ
  • +REF193: FAQ
  • +REF195: FAQ
  • +REF198: FAQ
  • +REF43NBC: FAQ
  • +Right Leg Drive (RLD): FAQ
  • +SFP-RDK: FAQ
  • +SPICE: FAQ
  • +UG-084: FAQ
  • +VGAs: FAQ
  • +Precision Technology Learning Modules

AD8628: Signal sourcing

Q 

Reading the 8628 data sheet I don't see the simplified block diagram of the
amplifier. The question is the following: when looking to the signal source
trough AD8628 is that mean that 8628 connected to the signal source only half
the overall time (another half of time used to zeroing)? In another words -
with the unity gain the signal-to-noise ratio remains the same at the output as
one at the input of 8628? (Say in the 0-8 kHz bandwidth).

 

A 

My answer is that the signal source driving the input pins of the AD8628 will
always be connected to the amplifier.  The switching mechanism (auto-zero)
occurs only on the internal nulling amplifier (the AD8628 has two amplifiers:
the main amplifier and the nulling amplifier).  Please read sections: “Basic
Auto-Zero Amplifier Theory”, “Auto-Zero Phase”, and “Amplification Phase” of
the AD8571/AD8572/AD8574 Data Sheet, pages 14, 15, and 16.  This is an
excellent source of information concerning the theory behind our auto-zero
amplifiers.
  • ad8628
  • 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.