company blog about Recycle ADI Isolation IC Evaluation Board:Isolated Amplifier,Isolated Gate Driver,Isolated Interface

Recycle ADI Isolation IC Evaluation Board:Isolated Amplifier,Isolated Gate Driver,Isolated Interface

Shenzhen Mingjiada Electronics Co., Ltd., as a globally renowned electronic component recycler, possesses the following distinct advantages in the field of electronic component recycling:

1. Extensive Acquisition Scope

Covering electronic components across numerous sectors including 5G, IoT, new energy, artificial intelligence, communications, healthcare, and home appliances. This encompasses integrated circuits, memory devices, sensors, microcontrollers, communication modules, and more.

2. Professional Evaluation System

Our seasoned technical team conducts rigorous quality inspections on recovered components, ensuring compliance with original manufacturer standards and assisting clients in optimising inventory disposal.

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We offer diversified recycling solutions: resale (high return rates), consignment (reduced logistics costs), and clearance (rapid cash flow), catering to diverse client needs.

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I. Isolation Amplifier Evaluation Board: Precision Measurement Meets High-Voltage Isolation

The Isolation Amplifier Evaluation Board is specifically designed to validate the voltage measurement accuracy, isolation performance, and environmental adaptability of ADI isolation amplifiers. It finds extensive application in scenarios such as high-voltage DC bus monitoring, industrial sensor signal isolation transmission, and physiological signal acquisition in medical equipment. Typically integrating an isolated power supply module, input protection circuitry, and configurable output filtering units, this evaluation board supports multi-range inputs and flexible power supply options, balancing measurement precision with operational convenience.

Taking the typical model EVAL-ADuM4195-1EBZ as an example, this evaluation board is built around the ADuM4195-1 fixed-gain isolated amplifier. It constitutes a compact isolated DC voltage monitoring board, integrating ADI's Briz isolated on-board power supply (ADuM6028-5). This eliminates the need for an additional isolated power supply, as a single 5V DC supply suffices to meet the power requirements for both the input and output sides. The input side offers dual selectable interfaces: the P1000 interface is pre-configured to support up to 1000V DC input, while the P200 interface can be user-configured for up to 200V DC input. Both feature input reverse polarity protection, effectively preventing component damage from incorrect wiring. The output side offers flexible design options: the raw output signal from the ADuM4195-1 can be read directly, or an external resistor and capacitor can be used to form a first-order low-pass filter to suppress high-frequency noise interference. Additionally, the evaluation board provides an external connection for the amplifier's shutdown (SD) pin and an isolated 5V power supply interface, facilitating user testing of device performance in low-power mode and enabling peripheral circuit expansion.

The core advantage of this evaluation board lies in its precise replication of real-world high-voltage isolation scenarios. Its isolation performance matches that of the amplifier chip, achieving up to 1kV DC isolation. Combined with low offset voltage and high common-mode rejection ratio, it ensures measurement accuracy in highly disturbed environments. Furthermore, adhering to industrial-grade design standards and supporting a wide operating temperature range, the board is directly applicable for performance verification in harsh environments such as automotive electronics and industrial automation.

II. Isolated Gate Driver Evaluation Board: The Core Platform for Efficient Drive and Safe Isolation

The isolated gate driver evaluation board focuses on verifying isolated drive performance for power devices such as IGBTs, MOSFETs, and SiC MOSFETs. It is suitable for power electronic systems including three-phase inverters, motor controllers, onboard chargers, and photovoltaic inverters. These evaluation boards integrate isolated gate driver chips, isolated power supplies, driver protection circuits, and test points. They enable comprehensive assessment of the driver's output capability, propagation delay, immunity to interference, and protection functions, providing critical data support for optimising power module drive solutions.

ADI offers multiple differentiated evaluation boards tailored to various power devices and application scenarios. Among these, the EVAL-ADuM4121WHB1Z half-bridge gate driver board is specifically designed for driving Wolfspeed silicon carbide (SiC) MOSFETs and power modules. Based on the ADuM4121 isolated gate driver, it delivers a peak output current of 2A (on-resistance <2Ω) supporting an output voltage range from 4.5V to 35V to accommodate the high-speed switching requirements of SiC devices. The evaluation board incorporates an internal Miller clamp function to effectively suppress Miller effect capacitance-induced turn-on during the output falling edge, enhancing switching stability. It also includes input/output under-voltage lockout (UVLO) and thermal shutdown protection to prevent damage to power devices from abnormal power supply or overheating. The evaluation board employs an RS-422 signal interface for control signal transmission, enhancing noise immunity. It also incorporates an isolated feedback channel, enabling temperature monitoring via a negative temperature coefficient (NTC) thermistor for closed-loop thermal control.

For three-phase inverter motor control applications, ADI's EVAL-ISO-INVERTER-MC isolated inverter platform delivers a system-level evaluation solution, available in two variants: a basic version and a fully featured version. The Basic Edition (EV-MCS-ISOINV-Z) employs three dual-channel isolated gate drivers (ADuM4223) to drive a three-phase, six-transistor IGBT bridge arm rated at 1200V. It simultaneously provides two isolated current feedback channels and a bus voltage feedback signal via a Σ-Δ modulator, supporting motor control algorithm development and validation. The Full-featured Edition (EV-MCS-ISOINV-Z) employs six independent isolated gate drivers (ADuM4135) to deliver three isolated phase current feedback channels, catering to higher-precision closed-loop control requirements. Both platforms support DC bus voltages up to 800V and feature convenient interfaces for the DSP-CM408 processor evaluation board, enabling rapid motor control test system deployment to accelerate solution implementation in new energy vehicles, industrial motors, and related fields.

III. Isolation Interface Evaluation Board: Reliable Assurance for High-Speed Communication and Isolation Protection

The isolation interface evaluation board primarily verifies the isolation performance and data integrity of ADI digital isolators in serial communication and bus transmission scenarios. It covers mainstream communication protocols including SPI, USB, RS-485, and CAN, finding extensive application in industrial PLCs, 5G base stations, medical device communication interfaces, and automotive bus isolation. These evaluation boards feature a modular design supporting multi-channel signal isolation transmission. They integrate ESD protection, signal matching circuits, and flexible power supply options, balancing high-speed transmission with high reliability.

Within the general-purpose digital isolation interface domain, the EVAL-5CH6CHSOICEBZ evaluation board supports 5-channel and 6-channel iCoupler® digital isolators, compatible with the ADuM150N/160N/250N series devices. Employing a 16-pin SOIC package layout, it provides standard power terminals, bypass capacitors, and pin interfaces. The evaluation board facilitates signal loopback testing, load adaptation, and differential ground plane reference designs. Signal sources can be connected via edge-mounted SMA connectors (requiring separate ordering) or header pins, enabling engineers to evaluate critical isolator parameters including data transfer rates, propagation delay, and common-mode transient immunity (CMTI). The on-board four-layer PCB design adheres to best electromagnetic compatibility (EMC) practices, with separate power and ground planes allocated to each isolated section. This minimises interference impact on communication performance, making it suitable for isolation testing in high-noise industrial environments.

For specific communication protocols, ADI offers dedicated evaluation boards. For USB isolation interfaces, the EVAL-ADuM4160EBZ evaluation board is built around the ADuM4160 USB isolator, supporting low-speed and full-speed USB communication compliant with the USB 1.1 standard. It integrates the ADuM5000 isoPower® isolated DC-DC converter to provide isolated power to downstream interfaces. The board features standard USB Type-A and Type-B connectors, supporting power delivery via USB host or external 5V/3.3V sources. Test points are provided for all power and signal paths, with support for enumeration control and external ESD protection. This addresses the challenge of achieving isolation for USB interfaces in medical and industrial applications.

In the realm of SPI communication isolation, the EVAL-ADuM3154Z evaluation board is specifically designed for the ADuM3154 four-channel SPI isolator. It optimises adaptability for SPI communication scenarios, featuring two low-speed address pins that route the slave select signal to one of four target devices, supporting multi-slave topologies. The evaluation board employs a 20-pin SSOP package layout, supporting signal distribution, loopback testing, and cross-power-domain referencing. Power is accessed via terminal blocks, while high-speed signal input/output is facilitated through SMA connectors. This makes it suitable for high-speed communication scenarios such as 5G base station optical modules and SPI interface isolation for industrial sensors.

IV. Summary of Core Technical Advantages and Application Value

The core competitiveness of ADI's isolated IC evaluation board stems from its underlying iCoupler® magnetic isolation technology. Compared to traditional optocoupler isolation solutions, it offers advantages including no LED ageing, low transmission delay, high common-mode transient immunity (up to >150kV/μs) and a wide isolation voltage range (1kV to 5kV rms). Additionally, the integration of isoPower® isolated power technology eliminates the need for separate isolated power circuit design, significantly simplifying evaluation system setup complexity.

From an application perspective, these evaluation boards provide engineers with a “ready-to-use” testing environment. They enable rapid verification of whether the isolation IC's performance parameters meet system requirements, shortening solution selection and optimisation cycles. Through reserved test points and flexible configuration options, they support customised scenario testing, helping engineers identify potential issues in real-world applications. Some evaluation boards provide complete design files and user guides, serving as reference blueprints for end-product design and reducing R&D risks.

Whether for isolation amplifier evaluation boards in precision measurement applications, isolated gate driver evaluation boards for power drive scenarios, or isolated interface evaluation boards for high-speed communication environments, ADI delivers scenario-driven evaluation solutions spanning device-level to system-level. This robust support underpins the design of high-reliability isolated systems across industrial, automotive, medical, and communications sectors.