ADUM4160BRIZ-RL

ADUM4160BRIZ-RL is a four‑channel digital isolator from Analog Devices’ iCoupler family, designed to implement an isolated SPI interface.
What it is
- An isolated bridge for SPI signals, providing galvanic isolation between a microcontroller side (VDD1) and a peripheral side (VDD2).
Key features
- Four isolated channels that can be used to carry the standard SPI lines (e.g., SCK, MOSI, MISO, CS) across the barrier.
- Independent supply rails on each side, enabling different logic voltages.
- Fast data transfer with low propagation delay, plus protection features such as undervoltage lockout and failsafe output states.
- Solid reliability without optocouplers, reducing board space and power compared with traditional isolation methods.
Typical uses
- Isolated SPI sensors, memory, motor drivers, or any high-noise/high-voltage subsystem communicating with a microcontroller.
Packaging note
- BRIZ-RL indicates the specific package and RoHS/lead-free reel packaging used by Analog Devices.
Why use it
- Simple, compact, and cost-effective way to implement a galvanically isolated SPI link with vetted, high‑quality isolation.

Here are the key features of ADUM4160BRIZ-RL (Isolated RS-485/RS-422 Transceiver):
- Galvanic isolation between logic side and RS-485/422 bus side (high isolation voltage, typical 2.5 kV RMS).
- Isolated two-wire RS-485/RS-422 transceiver for half‑duplex operation (A/B bus on the bus side).
- Independent isolated supplies on each side (VDD1 and VDD2) with compatible voltage ranges.
- High-speed differential data rate up to the RS-485 specification (up to ~10 Mbps).
- Control interface on the logic side: DI, DE, RE, RO for driver/receiver control.
- Receiver failsafe: RO asserted high on open, short, or idle bus conditions.
- Low power consumption and robust ESD/EMI performance.
- Wide operating temperature range: -40°C to +125°C.
- RoHS compliant and lead-free (BRIZ-RL package).
Note: Packaging is BRIZ-RL; all values are as per the datasheet and can vary by variant.

ADuM4160BRIZ-RL is in a 16‑pin Small Outline IC (SOIC‑16) package. It is RoHS‑compliant, industrial temperature range, and shipped in tape‑and‑reel packaging.

- Pin count: 16 pins (16-pin package, BRIZ).
- Function: Quad-channel digital isolator (ADuM4160) providing galvanic isolation between the input and output sides for four digital signals, used to isolate microcontroller/interfaces (e.g., SPI/I2C/UART) from a hostile or high-voltage side.

- Manufacturer: Analog Devices, Inc. (ADI).
- Company type: A global American semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing ICs (including data converters, sensors, and isolation products).

- Automotive in-vehicle CAN networks (safety-critical ECUs)
- Industrial automation (CANopen, DeviceNet, factory networks)
- Motor drives and power electronics
- Distributed sensing and instrumentation requiring isolation
- Robotics and automated systems
- Harsh/high‑voltage environments needing galvanic isolation between CAN controller and bus

Equivalent products to ADuM4160BRIZ-RL (4-channel digital isolator, 5 kV RMS isolation, 3.3/5 V logic) include:
- Analog Devices: ADuM4140, ADuM4150 (same iCoupler family)
- TI: ISO784x family (ISO7841/2/3/4)
- Broadcom/Avago: HCPL-7840/7841/7842
- Silicon Labs: Si86xx (e.g., Si8620/8621)