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Application Notes (20)

AN-1141: Powering a Dual Supply Precision ADC with Switching Regulators (pdf, 640 kB)
AN-1026: High Speed Differential ADC Driver Design Considerations (pdf, 355 kB)
AN-0992: Active Filter Evaluation Board for Differential Amplifiers (pdf, 85 kB)
AN-935: Designing an ADC Transformer-Coupled Front End (pdf, 363 kB)
AN-932: Power Supply Sequencing (pdf, 95 kB)
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-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs (pdf, 203 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-589: Ways to Optimize the Performance of a Difference Amplifier (pdf, 115 kB)
This Application Note presents several ways to build and optimize the performance of a discrete difference amplifier. It also recommends amplifiers that will make the overall solution cost/performance competitive with monolithic instrument amplifiers.
AN-584: Using the AD813X Differential Amplifier (pdf, 174 kB)
The AD813x differs from conventional op amps by the external presence of an additional input and output. The additional input, VOGM, controls the output common mode voltage.
AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (pdf, 166 kB)
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-358: Noise and Operational Amplifier Circuits (pdf, 593 kB)
AN-356: User's Guide to Applying and Measuring Operational Amplifier Specifications (pdf, 538 kB)
AN-282: Fundamentals of Sampled Data Systems (pdf, 2131 kB)
AN-257: Careful Design Tames High Speed Op Amps (pdf, 611 kB)
AN-253: Find Op Amp Noise with Spreadsheet (pdf, 77 kB)

Circuit Note (6)

Technical Articles (6)

Designing 1-ppm DAC Accuracy into Instrumentation Applications
Understand the challenges of achieving this level of converter performance
(Planet Analog, 3/2010)
- Part 1
  This article looks at a 1-ppm DAC and associated support circuitry, error sources, and performance measures.
- Part 2
  This article discusses 1-ppm circuit complexities including noise, temperature drift, thermoelectric voltages, physical stress, long-term stability, circuit construction and layout, and voltage references.
Linear Potentiometer Provides Nonlinear Light-intensity Control
by Stephan Goldstein, Analog Devices, Inc. (Design Idea, EDN, 4/28/2005)
MS-2022: Seven Steps to Successful Analog-to-Digital Signal Conversion (Noise Calculation for Proper Signal Conditioning) (pdf, 277 kB)
MS-2124: Understanding AC Behaviors of High Speed ADCs (pdf, 276 kB)
MS-2210: Designing Power Supplies for High Speed ADC (pdf, 327 kB)
Nine Often Overlooked ADC Specifications (pdf, 445 kB)
Analog-to-digital converters (ADCs) have many specifications; some are more important for a given application than others. Understanding these specifications and controlling external devices affecting the ADC will lead to better performance.

ADIsim Design/Simulation Tools (2)

ADI DiffAmpCalc™
ADI's new ADI DiffAmpCalc™ is a free, downloadable calculator for designing differential amplifier circuits. The tool is easy to use and features an interactive user interface to quickly get you up and running.
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.

Data Sheets (3)

AD7626: 16-Bit, 10 MSPS, PulSAR Differential ADC Data Sheet (Rev B, 07/2012) (pdf, 268 kB)
AD8031/AD8032: 2.7V, 800 A, 80 MHz Rail-to-Rail I/O Amplifiers Data Sheet (Rev D, 11/2008) (pdf, 423 kB)
ADA4932-1/ADA4932-2: Low Power Differential ADC Driver Data Sheet (Rev B, 03/2013) (pdf, 542 kB)

Design Calculators (1)

OpAmp Stability
An applet for demonstrating stability effects in opamp buffers.

Design Handbooks (2)

High Speed System Applications
- Table of Contents (pdf, 2296 kB)
- Section 1: High Speed Data Conversion Overview (pdf)
- Section 2: Optimizing Data Converter Interfaces (pdf, 1677 kB)
- Section 3: DAC, DDS, PLL's, and Clock Distribution (pdf, 7676 kB)
- Section 4: PC Board Layout and Design Tools (pdf, 3570 kB)
The Data Conversion Handbook

Documentation (6)

AN-0992: Active Filter Evaluation Board for Differential Amplifiers (pdf, 85 kB)
EVAL-AD7625/AD7626EDZ: Evaluation Board for AD7625/AD7626 (Preliminary Rev, PrC) (pdf, 2517 kB)
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)
UG-132: Evaluation Board User Guide for the ADA492x-1 and ADA493x-1 Family of Differential Amplifiers (pdf, 226 kB)
Differential Amplifier Evaluation Board for Single 16-lead 3 mm × 3 mm LFCSP Packages
AN-649: Using the Analog Devices Active Filter Design Tool (pdf, 5301 kB)

FAQs/RAQs (1)

When running on a single supply, my op amp's output is highly distorted. Could this be some kind of headroom issue?

Overview (4)

ADC Drivers
RF Source Booklet (pdf, 815 kB)
RF IC Product Overview - Version O (11/2012)
See what 40 years of data acquisition expertise can do for your instrumentation designs.
When high performance and low power make the design, ADI converters make the difference.

Product Selection Guide (1)

High Speed Amplifiers Selection Table (pdf, 77 kB)

Solutions Bulletins (1)

Analog-to-Digital Converter and Driver ICs

SPICE Models (2)

AD8031 SPICE Macro-Model
- AD8031A SPICE Macro-Model ADI/SMR Rev D, 8/96
ADA4932 SPICE Macro Model
- ADA4932 SPICE Macro Model, Ver 1.0, 11/08

Tutorials (20)

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-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-073: High Speed Variable Gain Amplifiers (pdf, 177 kB)
MT-074: Differential Drivers for Precision ADCs (pdf, 249 kB)
MT-075: Differential Drivers for High Speed ADCs Overview (pdf, 183 kB)
MT-076: Differential Driver Analysis (pdf, 95 kB)
MT-218: Multiple Feedback Band-Pass Design Example (pdf, 0)

User Guides (4)

EVAL-AD7625/AD7626EDZ: Evaluation Board for AD7625/AD7626 (Preliminary Rev, PrC) (pdf, 2517 kB)
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)
UG-132: Evaluation Board User Guide for the ADA492x-1 and ADA493x-1 Family of Differential Amplifiers (pdf, 226 kB)
Differential Amplifier Evaluation Board for Single 16-lead 3 mm × 3 mm LFCSP Packages

Utilities and Conversions (2)

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.

Videos (1)

AD7626: 16-BIT, 10-MSPS SAR Converter
ADI's AD7626 PulSAR® ADC achieves a new level of 16-bit data capture performance, with best-in-class 15-bit ENOB (effective number of bits) and 10-MSPS (million samples per second) throughput, which is 2.5 times faster than other SAR ADCs.

Webcasts (1)

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.

Analog Dialogue (2)

"Rules of the Road" for High-Speed Differential ADC Drivers
(Analog Dialogue, Vol. 43, No. 5, 2009)
A Practical Guide to High-Speed Printed-Circuit-Board Layout
By John Ardizzoni, Analog Dialogue 39-09, September 2005

SUPPLEMENTAL RESOURCES - CN0105: Single-Ended-to-Differential High Speed Drive Circuit for 16-Bit, 10 MSPS AD7626 ADC

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