company blog about Recycle ADI Isolation IC:Data Isolators,Isolated Interface,Isolated Regulators & Controllers

Recycle ADI Isolation IC:Data Isolators,Isolated Interface,Isolated Regulators & Controllers

Shenzhen Mingjiada Electronics Co., Ltd. is a seasoned enterprise with over thirty years’ experience in the electronic component recycling sector. We specialise in the recycling of all types of electronic components, providing clients with one-stop solutions for stock clearance, obsolete stock management and the monetisation of idle chips, thereby promoting resource recovery, reducing costs and enhancing efficiency.

[Key Advantages]

1. Professional Assessment, Accurate Quotations

Our team conducts inspections to verify model numbers, batch numbers, packaging, appearance and functional integrity; products are categorised as original factory packaging, brand-new loose items or refurbished products.

Pricing is tiered (Grade A: original, unopened factory packaging; Grade B: brand-new loose items; Grade C: Refurbished, in good condition), with prices closely tracking global market trends and exceeding the industry average

Detailed quotations issued within 2 hours; transparent pricing with no hidden fees or unfair price reductions

2. Efficient Transactions, Swift Payment

Nationwide door-to-door service: Inspection completed within 4 hours in Shenzhen, Hong Kong and the Pearl River Delta region; nationwide support for cash-on-delivery courier services, full insurance and third-party warehouse handover

Instant settlement: Following inspection confirmation, small payments are credited in real time via WeChat Pay or Alipay; large payments are settled via corporate bank transfer, with payment guaranteed within 48 hours, effectively alleviating cash flow pressure for businesses

3. Comprehensive range, high-price buyback

No restrictions on model, quantity or packaging; we accept full pallets, full reels, loose parts and obsolete stock

Premium prices for End-of-Life (EOL) models: due to their scarcity, EOL chips command higher prices than standard models

We accept only genuine, factory-sealed products; we do not accept refurbished, re-polished or substandard products, to ensure a healthy supply chain cycle

[Cooperation Process: 4 Simple Steps to Easy Cash]

Enquiry and Valuation: Provide part numbers, quantities, package types, batch numbers and photographs; send your list via email or WeChat to receive an initial quotation

On-site Inspection/Sample Submission: On-site inspection services are available in Shenzhen and surrounding areas; clients from other regions may submit samples, which we will subject to full-functionality testing using specialist equipment

Quotation Confirmation: We provide a final quotation based on the test results; both parties confirm the price and transaction method

Payment and Delivery: Available via on-site handover or courier delivery; payment is made immediately upon successful acceptance; transaction completed

【Why Choose Mingjiada for Electronic Component Recycling?】

Proven Expertise: We specialise in the electronic component recycling sector, with extensive experience in product recycling and in-depth knowledge of various models and market values

Strong Capabilities: Well-capitalised with a nationwide service network; we have established long-term, stable partnerships with thousands of enterprises; we enjoy an industry-recognised reputation for excellence

Value Maximisation: Genuine chips are highly technical and contain precious metals, resulting in a residual value far exceeding that of ordinary chips; we offer the highest premiums

One-Stop Service: Inventory clearance, obsolescence management and factory-wide bulk recycling; we offer flexible support for various models including cash payment, consignment and commissioned sales

Overall Overview of ADI Isolation ICs

At the core of ADI isolators lies iCoupler magnetic isolation (chip-level air-core transformers); some products integrate isoPower isolated DC-DC converters, replacing traditional optocouplers, eliminating issues such as LED ageing and CTR drift, whilst offering lower power consumption and extremely high common-mode transient immunity (CMTI) (typically > 25 kV/μs). They are widely used in industrial PLCs, motor drives, BMS battery management systems, medical equipment, new energy inverters, automotive ADAS, humanoid robots, LEO satellites and other applications requiring high-to-low voltage isolation and ground loop isolation.

I. Data Isolators (ADuM Series Digital Isolators)

Positioning: General-purpose digital signal isolation chips that isolate unidirectional/bidirectional digital logic signals (SPI, I²C, GPIO, PWM, clock); they do not incorporate bus protocol transceivers

Principle: iCoupler chip-level transformers encode and transmit signal edges; feature a built-in refresh mechanism; support stable DC-level transmission; and simultaneously perform level conversion across the isolation barrier (3.3V to 5V and vice versa)

Representative Models and Features

1. ADuM1200/ADuM1201: Dual-channel, 2.5 kVrms isolation, up to 100 Mbps; classic general-purpose models, the first choice for motor drivers and SPI isolation

2. ADuM1400/ADuM1410: Four-channel, with selectable multi-channel configurations (1-in-3-out, 2-in-2-out); low-speed versions suitable for I²C/GPIO

3. ADuM1250/ADuM1251: Dedicated bidirectional I²C isolators, open-drain channels, no need to split SDA/SCL, support hot-swapping

4. ADuM764x: Low-cost 6-channel, 1 kVrms functional isolation, non-safety high-voltage isolation, used for on-board functional isolation

5. isoPower integrated versions ADuM5410/ADuM6404: Four-channel digital isolation + on-chip isolated DC-DC power supply; a single chip simultaneously isolates signals and generates power on the isolated side, simplifying the BOM; maximum output of 500 mW; suitable for small isolated sensors and PLC I/O modules

Key advantages

- Freely configurable channel orientation; single, dual, quad or six-channel options

- Wide temperature range, industrial grade: –40 to 105 °C; automotive version: AEC-Q100

- No optocoupler ageing; long-term timing stability; minimal pulse width distortion

Typical Applications: Isolated SPI ADCs, gate-drive PWM signals, BMS master control and high-voltage sampling interfaces, and servo drive signal isolation for humanoid robots

II. Isolated Interfaces (Integrated Protocol Transceiver + Isolation)

Positioning: Building upon iCoupler isolation, these devices incorporate a built-in bus transceiver to directly output differential bus signals. A single chip realises the [logic interface ↔ isolation ↔ bus] functionality, eliminating the need for two separate chips—a ‘digital isolator’ and a ‘standalone transceiver’

1. Isolated RS485/RS422

- ADM2483: Classic half-duplex isolated RS485, 3-channel iCoupler isolation, 500 kbps

- ADM2582E / ADM2682E: Integrated isoPower; full isolation of both signals and power supply; single-supply operation; 16 Mbps high-speed; the ADM2682E supports 5 kVrms reinforced insulation and ±15 kV ESD; commonly used in industrial Modbus, wind power and photovoltaic applications

2. Isolated CAN Transceivers

MAX14878/MAX14879/MAX14880: Isolated CAN 2.0, up to 1 Mbps; the MAX14878 provides up to 5 kVrms isolation and bus fault protection; used for BMS, automotive electronic control units and industrial CAN bus isolation.

3. Other Isolated Interfaces

Isolated RS232, isolated USB; used for medical instruments and industrial serial port isolation.

III. Isolated Voltage Regulators & Isolated Controllers (ADuM347x / ADuM447x / ADuM4070, ADP1071)

Positioning: Isolated DC-DC power supply solutions; iCouplers not only transmit signals but also handle isolated power transmission and isolated PWM feedback, completely eliminating the optocoupler feedback loop required in traditional isolated power supplies and simplifying the loop compensation design for isolated power supplies

1. ADuM3470 / ADuM3472

Four-channel digital isolation + isolated PWM power controller, 2W power rating, 3.3–24V adjustable isolated output; features an integrated transformer driver, soft start, pulse-by-pulse current limiting and thermal shutdown; 2.5 kV isolation, 200 kHz to 1 MHz switching frequency; suitable for isolating sensor power supplies, low-power isolated bias power supplies, and isolated power supplies for IGBT/SiC gate drivers.

2. ADuM4470 / ADuM4472

5 kVrms reinforced insulation, up to 2.5 W output, integrated isolated PWM feedback + full loop compensation, eliminating the need for optocouplers for secondary-side feedback; four 25 Mbps digital isolation channels, combining signal isolation and isolated regulated power supply in a single device; wide-body SOIC meets high creepage distance requirements; suitable for medical equipment and high-voltage industrial instrumentation.

3. ADuM4070

Isolated switch-mode regulator controller with built-in MOSFET driver; integrated primary-side isolated PWM feedback; 2.5W output power; adjustable from 3.3V to 24V; eliminates the need for optocoupler feedback and external loop compensation.

4. ADP1071 Isolated Flyback Controller

High-performance isolated flyback controller, integrating iCoupler isolated feedback and secondary-side active rectification, with fast transient response and a maximum junction temperature of 125°C; suitable for high-power isolated power supplies, automotive OBCs and high-power industrial isolated power supplies.

Key Advantages

- No optocoupler feedback; therefore, no loop drift caused by optocoupler temperature or ageing

- Some models also feature a digital isolation channel, providing both power and signal isolation in a single chip, significantly simplifying the PCB

- Built-in protection: soft start, pulse-by-pulse current limiting, thermal shutdown

Applications: Isolated gate driver power supplies, BMS high-side power supplies, industrial transmitter isolated power supplies, medical isolated power supplies.