SI8421AB-D-IS

The SI8421AB-D-IS is a dual-channel digital isolator from Silicon Labs, designed for high-speed signal isolation in industrial, automotive, and communication applications. It features 5 kV RMS isolation and supports data rates up to 150 Mbps, ensuring robust noise immunity and signal integrity.
Key features:
- Dual-channel isolation with independent bidirectional or unidirectional channels.
- Wide supply voltage range (2.5V to 5.5V), compatible with various logic levels.
- Low propagation delay (<10 ns) for high-speed applications.
- AEC-Q100 qualified for automotive use.
- RoHS-compliant and available in a 16-pin SOIC package.
Ideal for SPI, I²C, or GPIO isolation, motor control, and power supply feedback loops. The SI8421AB-D-IS ensures reliable performance in harsh environments with high EMI.

Equivalent products to the SI8421AB-D-IS (dual-channel digital isolator) include:
- ADuM1201BRZ (Analog Devices)
- ISO7721DR (Texas Instruments)
- MAX12931BASA+ (Maxim Integrated)
- LTM2887IY-3#PBF (Linear Tech)
These alternatives offer similar dual-channel isolation with comparable speed and voltage ratings. Verify specs (e.g., isolation rating, speed, package) for exact compatibility.

The SI8421AB-D-IS is a dual-channel digital isolator with the following key features:
- High-Speed Isolation: Supports data rates up to 150 Mbps per channel.
- Low Power: Consumes 1.6 mA per channel (typical at 1 Mbps).
- Wide Voltage Range: Operates with 2.5V to 5.5V supply on both sides.
- Robust Isolation: Provides 2.5 kV RMS (UL-recognized) for 1 minute.
- Low Propagation Delay: 11 ns (typical) for fast signal transmission.
- High CMTI: >25 kV/µs (common-mode transient immunity) for noise resistance.
- AEC-Q100 Qualified: Suitable for automotive applications.
- Package: 16-pin SOIC (WB) for compact designs.
Ideal for industrial, automotive, and high-noise environments requiring reliable signal isolation.

The SI8421AB-D-IS is a dual-channel digital isolator from Silicon Labs.
- Pin Count: 16-pin (SOIC package)
- Function: Provides reinforced galvanic isolation (up to 5 kV RMS) for bidirectional digital signals.
- Key Features:
- Dual-channel (2 independent isolators)
- High-speed operation (up to 150 Mbps)
- Low power consumption
- Supports 3.3V or 5V operation
- Default output options (high/low)
Typical applications include industrial, medical, and automotive systems requiring noise immunity and safety isolation.

The SI8421AB-D-IS is packaged in a 16-pin SOIC (Small Outline Integrated Circuit). This surface-mount package is compact and widely used for isolation applications, offering reliable performance in a small footprint. The "D" in the part number typically denotes the SOIC package variant.