非常见问题解答

非常稳定的开关模式电源(SMPS)仍可能由于其在输出端的负电阻而产生振荡。在输入端,可以将SMPS看作一个小信号负电阻。其与输入电感和输入端电容一起可形成一个无...
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非常见问题第210期:如何在不构建专用硬件的情况下制作充电宝原型
FEB 2023
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学子专区——2023年04月 :ADALM2000实验:可调外部触发电路
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ADALM2000 Activity: Heartbeat Measurement Circuit
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过往期刊
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Considering Multipliers (Part 1) [The Wit and Wisdom of Dr. Leif—7]Maintaining Public Railways with Lower Cost and Improved SafetyImpedance Measurement Monitors Blood CoagulationLinear Variable Differential TransformersFingerprint Sensor and Blackfin Processor Enhance Biometric-Identification Equipment Design卷 42, 2
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Noise Figure and Logarithmic Amplifiers [The Wit and Wisdom of Dr. Leif—6]Open-Loop Calibration Techniques for Digital-to-Analog ConvertersUnderstanding Hot Swap: Example of Hot-Swap Circuit Design ProcessAC Shield Enhances Remote Capacitive SensingInexpensive High-Speed Amplifiers Make Flexible Clock BuffersDiscrete- and Integrated Control of Power Amplifiers in Base-Station Applications卷 42, 1
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The Contaminator of Signals: High-Frequency Common-Mode-Generated ErrorsCooking Inductively: ADI iCoupler Technology Isolates the Hob and the User InterfaceAnalog-to-Digital Converter Clock Optimization: A Test Engineering PerspectiveBIST for Analog WeeniesADuC702x Analog Microcontroller Generates Programmable Digital WaveformsHigh-Side Current Sensing: Difference Amplifier vs. Current-Sense AmplifierPulse Oximeter Uses ADuC7024 MicroConverterMeasuring Ambient TemperatureLeif's Teaser Number 1—Infinite Bandwidth Op Amp with Limited Bandwidth Feedback卷 41, 4
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DC-to-DC Switching-Regulator Insights—Achieving Longer Battery Life in DSP SystemsIC provides temperature, bias, and gain in single-supply applicationsProviding an Edge in Capacitive Sensor ApplicationsAsk The Applications Engineer—38: Better, Faster Open-Loop Gain MeasurementBroadband I/Q Modulator Eases Radio DesignESD Diode Doubles as Temperature SensorPhase Relations in Active FiltersSolving Dynamic Range Problems in Analog SystemsData Converter Function Can Help Solve Cost and Size Design Challenges in 3G and 4G Wireless Infrastructure卷 41, 3
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用于工业系统设计的高集成度可编程单器件传感器Data and Power Isolation in One Package Provides Total Isolation SolutionToward More-Compact Digital MicrophonesIf All Else Fails, Read This Article. Avoid Common Problems When Designing Amplifier CircuitsSingle-Chip Clock Generator with 14-Channel Distribution Solves Timing Challenges in NetworksBoost Precision and Accuracy with Single Chip Capacitance- and Impedance-to-Digital Converters三轴加速度传感器在跌倒检测中的应用8-Channel, 12-Bit, 10-MSPS to 50-MSPS Front End: The AD9271—A Revolutionary Solution for Portable Ultrasound卷 41, 2
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Digital Isolation Offers Compact, Low-Cost Solutions to Challenging Design ProblemsLens Drivers Focus on Performance in High-Resolution Camera ModulesAsk The Application Engineer—35 Capacitance Sensors for Human Interfaces to Electronic EquipmentD-Day (continued) [The Wit and Wisdom of Dr. Leif—5]卷 40, 3
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Fast, Versatile Blackfin® Processors Handle Advanced RFID Reader ApplicationsPrecision Signal-Processing and Data-Conversion ICs for PLCs Now Have More Performance at Less Power, Size, and CostWideband A/D Converter Front-End Design Considerations: When to Use a Double Transformer ConfigurationD-Day [The Wit and Wisdom of Dr. Leif—4]卷 40, 2
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Solving Power-Management Problems with a Single Chip that Handles up to 7 Channels of Sequencing, Monitoring, and SupervisionFast-Locking, High Sensitivity Tuned-IF Radio Receiver Achieved with a 7-GHz SynthesizerCompact Web Manufacturing Process Defect-Detection System Uses a Camera and ADI Blackfin® ProcessorAsk The Applications Engineer—31: Amplifiers as Comparators?卷 37, 1
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Interfacing a Blackfin DSP to High-Speed Converters for Wireless ApplicationsVersatile Mixed-Signal Front Ends Speed Customized Design of Wireline Broadband Modems and Home NetworksSimplify Audio Setups with a SigmaDSP™ Pre-Programmed Fully Configurable Digital Audio ProcessorX-Amp™, A New 45-dB, 500-MHz Variable-Gain Amplifier (VGA) Simplifies Adaptive Receiver Designs卷 35, 1
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14-Bit Monolithic ADCs: First to Sample Faster than 1 MSPS为什么要使用DSP?[数字信号处理101——DSP系统设计入门课程——第二部分]Quad-SHARC DSP in Ceramic Quad Flatpack200-MHz 16 x 16 Video Crosspoint Switch ICLi-Ion Battery Charging Requires Accurate Voltage SensingAsk The Applications Engineer-25: Op Amps Driving Capacitive LoadsSelecting Mixed Signal Component for Digital Communications Systems IV: Receiver Architecture Considerations卷 31, 1
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Application Example—ADC DriverNew High-Speed, Low-Power Data-Acquisition ICsTwo-Stage Current-Feedback AmplifierSingle-Supply IF-Strip Digitizes QAM SignalsUsing Histogram Techniques to Measure A/D Converter NoiseA Pipelined Converter (AD876)AD607 ArchitectureWideband Radios Need Wide Dynamic Range Converters为超声系统选择高速信号处理元件Ask the Applications Engineer—18: Settling Time卷 29, 1
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Wideband Supply Current-feedback Op AmpDesign Circuits with Digitally Controllable Variable ResistorsHighly Integrated Stereo Codec ICs Drive MultimediaMicromachined Complete-on-a-Chip SensorDSP Family Adds 3.3 V OperationAbout Ratiometric ConvertersUnderstanding High-speed Clamp AmpsAsk the Applications Engineer-17: Must a 16-bit Converter Settle to 16 ppm?卷 28, 3
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High-speed A/D Converters for Communications8-bit, 16-channel Voltage-output DACs12-bit Dual DAC: Serial, Single Supply Saves Space16-bit Fixed-point DSP with 80 kBytes of RAMDSP On-chip SRAM Design ConsiderationsLow-cost 16-bit DAC Updates at 30 MHzFloating-point DSP Leads in PerformanceVoltage-feedback Op Amps Offer Accurate ClampingDSP Cluster Multi-processingTechniques to Protect Amplifiers from Overvoltage卷 28, 2
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Dual Set-Point Single-Chip Temperature ControllerIntelligent Digitizing Signal Conditioner IC for SensorsAsynchronous Sample-rate ConvertersIC Vector Processor for Motor ControlMicroprocessor Supervisory ICsSerial Input 16-bit DAC Has Choice of RangesLVDT Interfaces Offer Choice of Analog or Digital OutputInstrumentation Applications for Sigma-Delta ADCsLow-distortion Mixer: +24 dBm 3rd-order InterceptGetting the Most from IC Voltage ReferencesGSM Chipset Implements All Baseband FunctionsAsk the Applications Engineer—15: Using Sigma-Delta Converters, Part 1卷 27, 2
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Surface-machined Monolithic Accelerometer"Uncommon-mode" High-speed Video Feedback AmplifierCMOS 10-bit 15 MHz ADC for Imaging ApplicationsVideo RAM-DACs Offer True-color Screen ImagesIncrease Laser Printer Resolution High-performance ICs in Single-supply Analog CircuitsFast, Accurate, Monolithic Sampling A/D ConverterUse Analog I/O Ports as Infinite Sample/Holds and Peak FollowersDesign Ideas for Sigma-Delta Instrumentation ADCsAsk the Applications Engineer—14: High Frequency Signal Contamination卷 27, 1
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Fast, Accurate, Timing Recovery for Fiber Optics LinksADI's Smallest, Lowest-cost, Signal Conditioning Modules for Process ControlSoundPort Codecs: Complete Audio I/O Subsystem ICs3V Supply 12-bit Multi-channel Data Acquisition System Samples at 50 kHzFour New Wideband Op Amps for Video, Imaging, and Much MoreTwo Op Amp Types Combine Precision and Wide BandwidthLow-noise, Low-drift, Precision Op Amps for InstrumentationOp Amps in Line-driver and Receiver Circuits – Part 2What's New in DSPAsk the Applications Engineer-13: Confused About Amplifier Distortion Specs?Monolithic 80-dB +5 V Single-supply Log Amp Has 50-MHz Frequency RangeComplete 12-bit and 10-bit 25.6 MSPS A/D Converters卷 26, 2
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Floating-point DSP for High Speed Signal ProcessingNumerical C Speeds Code Development and ExecutionDevelopment Tools and Third-party Support for Floating-point DSPSingle-supply In-amp for Automotive ApplicationsDisk-drive ICs - Optimized for Read-channel and Servo Loop Control3 New S/H Chips for Fast, Accurate Data AcquisitionMonolithic 10-bit, 18 MSPS Sampling A/D Converter with On-chip Track-HoldComplete 16-bit DACPORT in SOIC Package Includes On-chip 10-V ReferenceAdvanced SPICE Op-amp Macromodel: A Powerful Tool for DesignersAsk the Applications Engineer—10: About WirePhase Accumulator for Direct Digital Synthesis Resolves to Within 0.7 HzFET-input Op Amp Has Lowest Combined V and I NoiseSerial IC Analog I/O Port: 14-bit Performance and Small Package卷 25, 1
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Advanced Microcomputer is Optimized for DSPConverter/Filter Chipset for Voiceband ApplicationsIsolated Strain-gage Chipset Module Joins 5B Conditioner FamilyFastest Slewing Monolithic Op Amp has Wide Bandwidth6-bit Monolithic Flash ADCs Sample at up to 500 MHzEnhancements to LTS-2020 Benchtop IC TestersAsk The Applications Engineer—3: V/F ConvertersFast, Low-power Op Amps Offer Gain-bandwidth Choice卷 23, 1
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Monolithic 10-Bit, 20-µs Sampling A/D ConverterMonolithic Software-Programmable-Gain AmplifierMonolithic DAC Combines Speed and AccuracyComplete Monolithic 8-Bit 400-kSPS Analog I/O System22-Bit Complete Modular Integrating A/D ConverterPlug-In Boards Add Power and Versatility for VMEbus UsersTwo New Multiple M-DACs Save Space and Power in Board Designs8-Bit Video Digitizer for Cameras Includes Control SignalsFast, Accurate BiFET Op Amp Settles to 0.01% in 900 ns maxTwo New High-Precision Monolithic Voltage ReferencesHigh-Resolution Monolithic Resolver-to-Digital ConverterMonolithic Electrometer Has 60 fA max Bias CurrentFast-Settling 12-Bit DAC Provides 40-ns µP InterfacingHigh-Performance Analog Input Boards for IBM PC-ATHigh-Speed Single and Dual Monolithic Latching Comparators64-Bit Floating-Point Chipset with 40-MFLOPS Throughput卷 21, 1
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Isolation Amplifiers Become Low-Cost ComponentsFast, Flexible CMOS ICs Simplify Design of DSP SystemsMonolithic CMOS A/D Converter: 12-Bits in 5 µsµP-Based Autoranging Thermocouple MetersReal-World Interface Cards for IBM Personal ComputersSoftware-Programmable 12-Bit Data-Acquisition System3 New 4-DAC DIPS: 8- and 12-Bit Quad D/A ConvertersMonolithic Triple 4-Bit D/A ConverterUltrafast High-Resolution Sampling A/D ConvertersTesting Engine Emissions More EffectivelyComplete Monolithic Serial-Output 10-Bit A/D Converter卷 19, 1
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Complete Monolithic Analog Multifunction ChipDual 12-Bit Microprocessor-Compatible DAC in 0.3" DIP24 x 24-Bit Fixed-Point CMOS Digital MultiplierLow-Cost Voltage-to-Frequency Converter ChipHigh-Performance Precision Hybrid Isolation AmplifierLow-Cost 8-Bit Monolithic ADC Converts in 1.36 µs maxDouble-Buffered 14-Bit Monolithic CMOS Multiplying DACNew Plug-In Signal-Conditioning Modules for 3B Series High-Performance 10-Bit, 800-ns A/D ConverterReal-World I/O Cards for the CMOS STD BusSPGA-T/H Amplifier for Data-Acquisition System DesignThermometer with Resolution Better than 0.0001°C卷 18, 3
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Multichannel Signal-Conditioning Input/Output SubsystemAnalog Signal-Conditioning ICs Take Two Giant StepsSensor-Based Intelligent Data Acquisition for STD BusFaster Testing with New µC-Based Benchtop TesterIndustry's First Quad 12-Bit DAC in a 28-Pin DIPPowerful Measurement-and-Control System... and Much MoreWideband 2-Channel Monolithic Analog Multiplier/DividerHighest-Performance 12-Bit Monolithic D/A ConverterMACSYM SpeaksUnderstanding Interference-Type Noise卷 16, 2
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AD7528: A Dual Monolithic DAC for Many ReasonsApplying High-Performance Monolithic FET-Input Op AmpsMultitaskingUse Your Personal Computer for Measurement and ControlImproved Vector-Scan Displays Are ComingVersatile µP-Based Meters for J-K-T-E-R-S ThermocouplesDeglitching a 16-Bit Monolithic D/A ConverterLogarithmic Multiplying CMOS D/A ConverterSuper-Performance Hybrid Op-Amp FamiliesNew Software Package for LTS-2010 Test SystemsHigh-Performance Hybrids for Data-Acquisition卷 16, 1
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World's First Monolithic 16-Bit D/A ConverterMonolithic 12-Bit DAC Has 6-Word FIFO MemoryHybrid Isolation Amplifiers with a New TwistMonolithic Systems DACAnalog I/O Interface Cards for STD BusFirst Monolithic FET Op Amp with 1 µV/°C DriftTesting A/D Converters AutomaticallyMACSYM 10 for Industrial-Plant-Floor EnvironmentsDouble-Buffered Complete 12-Bit D/A ConverterHigh-Resolution Data-Acquisition Family卷 15, 2
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Isolated Conversion from Digital to 4-to-20 mA2B56 Programmable Cold-Junction CompensatorIsolate, Amplify, Multiplex 4+ Channels10-Bit 20-MHz Video A/D Converter0 to 88.5 dB in 1.5-dB Steps12-Bit CMOS M-DAC Interfaces Directly with µPsDAC Controls Precision UHF Noise LevelPutting the AD558 DACPORT™ on the Bus卷 14, 1
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MACSYM II: A Complete Measurement-And-Control SYsteMMACSYM II: Fast, Efficient 16-Bit Central-Processing UnitMACSYM II: ADIO Controller and Bus Minimize Interference, Power, and CostMACSYM II: Card Library Provides Flexible Input/Output CapabilityMACSYM II: The Proof of MACSYM's Power Is in the ApplicationsMACSYM II: MACBASIC Measurement-and-Control-Oriented Software卷 12, 3
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Inductosyn-to-Digital Converters13-Bit Monolithic CMOS A/D ConverterMonolithic Sample-Hold Amplifiers10-Volt (±1 mV) ReferencesFET-Input IC ElectrometersSimple Rules for Choosing Resistor Values in Adder-Subtractor CircuitsD/A Conversion with Single-Supply CurrentDifferential High-Impedance RMS-to-DC ConversionAudio Application Ideas for CMOS DACs卷 9, 3
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Comparing Thin Films for Precision Resistor NetworksSpecifying and Measuring a Low-Noise FET-Input IC Op Amp12-Bit Integrated Circuit D/A ConverterVoltage Measurements in Biomedical ResearchHandling Variable Data Rates with SERDEXKeys to Longer Life for CMOSUsing DPMs in Our Own Test EquipmentWays of Using the AD7520卷 8, 1
卷 8 1
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High-Precision Thin-Film Resistance NetworksA 10-Bit Monolithic CMOS D/A ConverterHigh-Speed Op Amps RevisitedReducing Multiplier Linearity ErrorsTemperature Measuring Circuit Borrows Power and Reference from DPMCurrent Controller Uses Adjustable ExponentUsing CMOS Switches For...Lock-In Amplifier Uses Single IC卷 7, 2
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Not by Drift Alone... The 741 Op Amp FamilyDesigning a Slim, Low-Cost 3½-Digit DPMThe AD520: Not an Op Amp but an Instrumentation AmplifierTrue RMS Measurement Using the AD53130-dB Automatic Gain Control with the AD531A Low-Noise, Low-Drift FET-Input Amplifier DesignVector Difference with the AD531卷 6, 3
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Monolithic Operational Amplifier with 1 µ/°C DriftQuad-Switch TTL-Compatibility12-Bit DAC Design Can Be Routine... 16 Bits Is more Difficult, but AchievableProtecting a 1/8-Gigawatt Power Supply, or How Do You Make a 2000-A Fuse?Good Circuit Practice Gets Best Results from Isolation Amplifiers卷 5, 2
卷 5 2
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AD555 Monolithic "µDAC" Quad Switches Make 4-Quadrant Multiplying DACs with 12-Bit LinearityOp Amps as Electrometers or—The World of fAA Choice, Not an Echo: The AD530 vs....Track-Hold AmplifierLong-Term Drift Measurements on Op AmpsCharge AmplifierMeasuring Sine-Wave Amplitudes Without Filtering卷 5, 1
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Equivalent Circuits for Operational Amplifier Drift and NoiseHow to Select R and C for Minimum Integrator DriftChopper Amplifier's PPM Stability Enables Electron Microscope to Scrutinize Individual MoleculesSolid-State Op Amp Measures Kilovolts with 0.05% AccuracyModified Feedback Simplifies Programmable Voltage SupplyIdeal Rectifier Uses Equal-Value ResistorsPrecision Peak-Reading CircuitSignal Is Sampled and Held for 1 MinuteOp Amp Mounting Techniques卷 1, 3
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2023
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