Application Notes (9)
- AN-932: Power Supply Sequencing (pdf, 95 kB)
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AN-931: Understanding PulSAR ADC Support Circuitry
(pdf, 299 kB)
This application note discusses in general the pitfalls that occur regularly when using SAR ADCs and, more importantly, how to easily prevent them. - AN-877: Interfacing to High Speed ADCs via SPI (pdf, 1594 kB)
- AN-742: Frequency Domain Response of Switched-Capacitor ADCs (pdf, 401 kB)
- AN-649: Using the Analog Devices Active Filter Design Tool (pdf, 5301 kB)
- AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (pdf, 166 kB)
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AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems
(pdf, 228 kB)
Movement towards lower power supply voltages is driven by the demand that systems consume less and less power coupled with the desire to reduce the number of power supply voltages in the system. The following applications are discussed: Single-Ended and Differential Input ADC Input Circuits, Video Line Driver, Active Filter, HDSL Transceiver, and Transformer Drive Circuits. -
AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps
(pdf, 55 kB)
So far most clamping amplifiers have relied upon an output clamping architecture and are called output clamp amps (OCAs). A new architecture called an input clamp amp (ICA) offers superior clamping accuracy and lower distortion. - AN-202: An IC Amplifier User’s Guide to Decoupling, Grounding, and Making Things Go Right for a Change (pdf, 76 kB)
Circuit Note (3)
- CN-0255: A Complete Single-Supply, 16-Bit, 100 kSPS PulSAR ADC System Dissipates 8 mW (pdf, 352 kB)
- CN-0306: A 16-Bit, 100 kSPS Low Power Successive Approximation ADC System with Optimum Low Power Drive Amplifier for Sub-Nyquist Input Signals Up to 1 kHz (pdf, 297 kB)
- CN0312: Dual-Channel Colorimeter with Programmable Gain Transimpedance Amplifiers and Synchronous Detectors (pdf, 404 kB)
Technical Articles (2)
ADIsim Design/Simulation Tools (2)
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ADIsimOpAmp™
This tool will help with the selection, evaluation and troubleshooting of voltage feedback Op-Amps. It uses typical data to model the behavior of a selected amplifier. It allows a user to select an amplifier, configure a circuit, apply a signal and evaluate the performance. It is useful for checking an amplifier's spec's such as Bandwidth, Slew Rate, Input/Output Range, Gain Error, Load Current, Stability Issues and DC Errors in a given circuit. -
Analog Filter Wizard 2.0
The Analog Filter Wizard™ helps you design a low-pass, high-pass, band-pass or band-stop filter with actual op amps. It then simulates the filter’s performance with these op amps in real time. You can ask the tool to optimize for power, noise, or voltage range, and it will pick op amps and passive components appropriately. Or you can adjust the components manually yourself.
Data Sheets (3)
- AD7988-1/AD7988-5: 16-Bit Lower Power PulSAR ADCs in MSOP/LFCSP (QFN) Data Sheet (Rev C, 08/2012) (pdf, 583 kB)
- ADA4841-1/ADA4841-2: Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifiers Data Sheet (Rev E, 12/2010) (pdf, 590 kB)
- ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550: Ultralow Noise, High Accuracy Voltage References Data Sheet (Rev 0, 04/2012) (pdf, 993 kB)
Design & Integration Files (1)
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CN0255 Design & Integration Files
(zip, 1145 kB)
- Schematic
- Bill of Materials
- Gerber Files
- PADS Files
- Assembly Drawing
Design Calculators (2)
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OpAmp Stability
An applet for demonstrating stability effects in opamp buffers. - Voltage Reference Selection & Evaluation Wizard
Design Handbooks (1)
Documentation (3)
- UG-101: Evaluation Board User Guide (pdf, 189 kB)
- UG-127: Universal Evaluation Board for High Speed Op Amps in SOT-23-5/SOT-23-6 Packages (pdf, 273 kB)
- AN-649: Using the Analog Devices Active Filter Design Tool (pdf, 5301 kB)
FPGA HDL (2)
IBIS Models (1)
- AD7988-1 IBIS Models
Product Selection Guide (1)
- High Speed Amplifiers Selection Table (pdf, 77 kB)
SPICE Models (1)
- ADA4841 SPICE Macro Model
Tutorials (17)
- MT-001: Taking the Mystery out of the Infamous Formula, "SNR=6.02N + 1.76dB," and Why You Should Care (pdf, 94 kB)
- MT-002: What the Nyquist Criterion Means to Your Sampled Data System Design (pdf, 152 kB)
- MT-021: ADC Architectures II: Successive Approximation ADCs (pdf, 3799 kB)
- MT-031: Grounding Data Converters and Solving the Mystery of (pdf, 144 kB)
- MT-032: Ideal Voltage Feedback (VFB) Op Amp (pdf, 65 kB)
- MT-033: Voltage Feedback Op Amp Gain and Bandwidth (pdf, 251 kB)
- MT-047: Op Amp Noise (pdf, 72 kB)
- MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth (pdf, 81 kB)
- MT-049: Op Amp Total Output Noise Calculations for Single-Pole System (pdf, 40 kB)
- MT-050: Op Amp Total Output Noise Calculations for Second-Order System (pdf, 38 kB)
- MT-052: Op Amp Noise Figure: Don't Be Mislead (pdf, 60 kB)
- MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR (pdf, 104 kB)
- MT-056: High Speed Voltage Feedback Op Amps (pdf, 109 kB)
- MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps (pdf, 66 kB)
- MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters (pdf, 69 kB)
- MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps (pdf, 62 kB)
- MT-101: Decoupling Techniques (pdf, 954 kB)
User Guides (2)
Utilities and Conversions (2)
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dBm/dBu/dBv Calculator
This calculator converts between standard units of power measurement and signal strength. -
Power Dissipation vs Die Temp
This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.
Webcasts (1)
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A Stress-Free Method for Choosing High-Speed Op Amps
A decision-tree approach to making the critical decision about high-speed op amp selection, including a look at some helpful tools.
