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Special Technical Content | Read, Watch, and Do to Master Analog Circuits – A 3-Step Learning Method!
DigiKey, in collaboration with Analog Devices Japan, has released exclusive Japanese-language technical content that allows you to thoroughly learn analog circuit design — from the basics to hands-on measurements.
Designed for a wide range of learners, from beginners to working engineers, this content covers everything you need to know through a structured "3-step" approach: understand the theory, verify through simulation, and perform actual measurements.
Where you start is up to you! Take this opportunity to follow the 3 steps and master practical analog circuit design skills that are truly useful in the field.
Step 1: Technical Article Series "Analog Devices Circuit Design Classroom Using LTspice Design Data" (4-Part Series)
This article series focuses on extracting the full performance of a key analog device — the operational amplifier (OP amp). Satoshi Ishii, a Principal Engineer at Analog Devices, explains essential design points from a practical engineering perspective in an easy-to-understand way.
Additionally, LTspice circuit data created by Mr. Ishii is available for free download. By using this data, readers can run simulations themselves and learn through hands-on experience.
Episode 1: OP Amp Frequency Characteristics and How to Choose the Right One
This session explains the relationship between gain and frequency characteristics in OP amp circuits, and introduces key points for selecting components that ensure stable operation and improved performance. You'll also learn about techniques for high-precision amplification, single-supply operation, and stability in negative feedback amplifier designs.
Read the technical descriptionFeatured Products from Episode 1:
- ADA4510-2: High-precision ±70 nV/°C rail-to-rail input/output OP amp.
Supports up to 40 V supply voltage, ideal for a wide range of applications from high-accuracy data acquisition systems to photodiode amplifiers. - LT6221: 60 MHz, 20 V/μs low-power, high-speed, high-precision OP amp.
Offers excellent DC performance with rail-to-rail I/O, achieving wide bandwidth with low supply current. - ADA4661-2: High-precision OP amp with 4 MHz bandwidth and rail-to-rail input/output.
Operates on a single supply from 3 V to 18 V, optimized for low power consumption, wide bandwidth, and broad operating voltage range.
Episode 2: Choosing OP Amps for High-Precision Amplification
The input offset voltage and temperature characteristics of an OP amp have a direct impact on measurement accuracy. This episode covers how to select high-precision OP amps, including bipolar-input models suitable for applications requiring up to 20-bit A/D conversion.
Read the technical descriptionFeatured Products from Episode 2:
- AD8506: Dual micropower rail-to-rail I/O OP amp with only 20 μA supply current.
Operates from 1.8 V and features zero crossover distortion, ideal for low-power applications. - AD8610: High-precision, low input bias current, wide bandwidth JFET-input OP amp.
Offers high input impedance and excellent accuracy, with low input bias current maintained across the full operating temperature range. - ADA4084-2: Single-supply, 10 MHz rail-to-rail input/output OP amp.
Guaranteed operation from 3 V to 30 V (or ±1.5 V to ±15 V), making it ideal for single-supply applications.
Episode 3: Selecting the Right OP Amp for Low-Voltage / Single-Supply Operation
This episode explains how to fully leverage the characteristics of rail-to-rail input/output OP amps while addressing the often-overlooked issues of input/output headroom and legroom. Real-world examples are used to illustrate key considerations and effective solutions.
Featured Products in Episode 3:
- ADA4666-2: Rail-to-rail input/output OP amp with 725 μA supply current.
A CMOS OP amp optimized for applications requiring low power consumption, wide bandwidth, and broad operating voltage range. - ADA4077-2: High-precision, low-noise OP amp with 4 MHz bandwidth.
Ideal for precise signal acquisition in sensor applications such as thermocouples, RTDs, and strain gauges. - ADA4620-2: High-precision, low-noise JFET OP amp with 16.5 MHz bandwidth.
Combines excellent DC accuracy and AC performance with a wide operating voltage range and temperature tolerance.
Episode 4: Designing and Validating a Stable Negative Feedback Amplifier
Explore the causes of instability due to OP amp phase delay and capacitive loading. This episode delves into the concept of phase margin — a key indicator of stability — and introduces design techniques and troubleshooting methods using both simulations and real measurements.
Featured Products in Episode 4:
- ADA4177-2: High-precision, low-noise OP amp with overvoltage and EMI protection.
Provides input protection for signals exceeding 32 V supply voltage and offers 70 dB electromagnetic interference rejection at 1000 MHz. - LTC6252: 720 MHz, 3.5 mA rail-to-rail input/output OP amp.
Delivers a gain bandwidth product of 720 MHz and a slew rate of 280 V/μs, all with a low supply current of just 3.5 mA. - AD8065: FET-input, rail-to-rail output high-speed OP amp.
Supports a wide supply voltage range from 5 V to 24 V, with 145 MHz bandwidth and 0.1 dB flatness up to 7 MHz.
Step 2: DigiKey Japan Official YouTube Series
"Mastering the Basics! 30 Essential Analog Circuit Examples – From OP Amp Applications to Key Techniques" (8-Part Series)
Satoshi Ishii, Principal Engineer at Analog Devices and author of the article series, explains practical OP amp circuit design techniques in a clear and accessible way. The LTspice circuit data used in the videos is also available for free download, allowing you to try out the simulations yourself as you learn.
On the DigiKey Japan Official YouTube Channel, you'll also find a wide range of content covering everything from electronics fundamentals to advanced topics — designed for everyone from students and early-career engineers to seasoned professionals.
Don't forget to subscribe and turn on notifications!
Step 3: Hands-on Seminar "Learning Analog Devices Analog Circuits with Experiment Kits and PCs"
At this hands-on seminar, we welcome Mr. Satoshi Ishii, Principal Engineer at Analog Devices, to provide practical training in analog circuit fundamentals. Using an OP amp training kit and the USB-based measurement tool ADALM1000, participants will simulate circuits with LTSpice and work through 13 hands-on exercises covering topics from basic amplifier configurations to noise analysis and oscillation countermeasures. This seminar offers practical guidance on selecting the right OP amp and designing effective analog circuits.
The first 100 applicants who register for Course A (full-kit course) and meet the application requirements will receive a free OP amp training kit (z-adalmopa). Supplies are limited, so we encourage early registration. For details on the application requirements, please visit the seminar registration page (external site: ZEP Engineering).
*Please note that if there is a high volume of orders for the ADALM1000, the product may temporarily be out of stock. In such cases, shipments will be made sequentially after the next restock. Thank you for your understanding.
*The remaining quantity of the OP Amp Hands-on Kit, which is offered free of charge to the first 100 applicants, will be updated on the ZEP Engineering seminar registration page below. Please check there for the latest information.
Japan