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Home > Products > Isolators > Digital Isolators

Skyworks Solutions Inc. SI8460BA-B-IS1R

Name: SI8460BA-B-IS1R
Brand: Skyworks Solutions Inc.
SKU: SI8460BA-B-IS1R
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI8460BA-B-IS1R

Manufacturer:: Skyworks Solutions Inc.

Category:: Digital Isolators

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: SI8460BA-B-IS1R.pdf

Description:: DGTL ISO 1000VRMS 6CH GP 16SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI8460BA-B-IS1R from Skyworks Solutions is a six-channel, ultra-low-power digital isolator in a 16-pin narrow-body SOIC package, supporting up to 150 Mbps data rate with worst-case propagation delay under 9.5 ns, <1.5 ns pulse width distortion, and 0.5 ns channel-to-channel skew - deployed in isolated ADC interfaces and motor control gate drivers.

For engineers reviewing the SI8460BA-B-IS1R datasheet, SI8460BA-B-IS1R pinout, SI8460BA-B-IS1R application, or SI8460BA-B-IS1R equivalent, key selection criteria include its 2.7–5.5 V dual-supply operation, 25 kV/µs common-mode transient immunity, 2500 VRMS isolation rating, and guaranteed timing performance across –40°C to +125°C at full speed.

Technical Context

The SI8460BA-B-IS1R implements capacitive isolation with on-chip RF modulation/demodulation circuitry, enabling high-speed signal transmission without magnetic coupling or optoelectronic components. It features independent primary and secondary supply domains (VDD1/VDD2), each configurable from 2.70 V to 5.5 V, with no start-up initialization required.

Its timing architecture delivers deterministic latency: propagation delay is specified at 3.0–9.5 ns (typ/max), pulse width distortion ≤2.5 ns, and channel-channel skew ≤1.8 ns - all validated across temperature and voltage extremes per IEC 60747-5-2 and UL 1577 safety standards.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	Up to 150 Mbps - supports high-resolution encoder feedback and fast SPI communication in real-time motor control loops.
Propagation Delay	3.0–9.5 ns (max) - enables sub-10 ns timing-critical signal transfer between MCU and isolated power stage drivers.
Channel-Channel Skew	≤1.8 ns (max) - ensures synchronized sampling across multiple isolated analog channels in multi-phase ADC systems.
CMTI	25 kV/µs - maintains signal integrity during fast-switching transients in SiC/GaN inverter gate drive circuits.
Isolation Voltage	2500 VRMS (1 min) - certified for reinforced insulation per UL 1577, CSA 5A, and VDE IEC 60747-5-2.
Supply Range	2.70–5.5 V on both sides - allows direct interfacing with 3.3 V microcontrollers and 5 V industrial logic without level shifters.
Power @ 100 Mbps	≤36 mA total (5 V) - reduces thermal load in compact, fanless industrial enclosures with multiple isolation channels.

Pinout & Package

SI8460BA-B-IS1R is housed in a RoHS-compliant 16-pin narrow-body SOIC package (7.5 mm × 10.3 mm, 1.27 mm pitch) with creepage/clearance ≥3.9 mm and internal isolation barrier rated for 2500 VRMS.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6	Primary-side input channels (IN1–IN6)	Digital inputs referenced to VDD1; accept 2.0 V high-level threshold and tolerate 0.8 V low-level max.
7, 8, 9, 10, 11, 12	Secondary-side output channels (OUT1–OUT6)	CMOS-compatible outputs referenced to VDD2; drive 4 mA loads with VOH ≥ VDD2–0.4 V.
13, 14	VDD1, GND1	Primary-side power domain: supplies internal transmitter and input buffers; bypass capacitor required.
15, 16	VDD2, GND2	Secondary-side power domain: powers receiver and output drivers; independent of VDD1 for galvanic separation.

Key Features

Feature	Design Value
Ultra-low power at high speed	≤6 mA per channel at 100 Mbps (5 V), enabling 6-channel isolation in thermally constrained designs.
Precision timing control	0.5 ns typical channel-channel skew and 1.5 ns pulse width distortion ensure deterministic signal alignment.
No start-up delay	Valid output within 40 µs of power application - eliminates boot-time synchronization issues in safety-critical systems.
High CMTI robustness	25 kV/µs common-mode transient immunity prevents false triggering during fast dV/dt events in inverters.
Wide temperature operation	Full 150 Mbps performance guaranteed from –40°C to +125°C - suitable for under-hood automotive and industrial environments.

Applications

Motor Control Gate Driver Isolation	Isolated ADC Interface
Use Scenario: Isolating PWM signals from MCU to half-bridge gate drivers in 3-phase inverter systems. IC Role / Device Role / Timing Role: Six-channel digital isolator transmitting complementary high-side/low-side gate drive signals with matched propagation delay. Use Value: Enables precise dead-time control via sub-2 ns channel skew and 150 Mbps capability for fast current-loop updates.	Use Scenario: Transmitting serial data from isolated sigma-delta ADCs (e.g., ADS131M04) to host processor. IC Role / Device Role / Timing Role: Bidirectional isolation of SPI clock, MOSI, MISO, and CS lines between ADC and controller domains. Use Value: Maintains 24-bit data integrity at 1 MSPS sample rates using 25 kV/µs CMTI and <10 ns propagation delay.
Industrial PLC Digital I/O Isolation	Hybrid EV Battery Management
Use Scenario: Galvanically isolating discrete sensor inputs and relay outputs in programmable logic controllers. IC Role / Device Role / Timing Role: Six independent isolation channels handling 24 V DC input sensing and 24 V DC output switching signals. Use Value: Reduces BOM count by replacing six optocouplers with one IC, while improving response time and lifetime reliability.	Use Scenario: Isolating cell voltage monitoring and balancing signals between battery pack and BMS controller. IC Role / Device Role / Timing Role: High-voltage barrier for UART or SPI communication across 400–800 V battery stacks. Use Value: Certified 2500 VRMS isolation and 60-year life at rated voltage meet ASIL-D functional safety requirements.

Motor Control Gate Driver Isolation

Isolated ADC Interface

Use Scenario: Isolating PWM signals from MCU to half-bridge gate drivers in 3-phase inverter systems.

IC Role / Device Role / Timing Role: Six-channel digital isolator transmitting complementary high-side/low-side gate drive signals with matched propagation delay.

Use Value: Enables precise dead-time control via sub-2 ns channel skew and 150 Mbps capability for fast current-loop updates.

Use Scenario: Transmitting serial data from isolated sigma-delta ADCs (e.g., ADS131M04) to host processor.

IC Role / Device Role / Timing Role: Bidirectional isolation of SPI clock, MOSI, MISO, and CS lines between ADC and controller domains.

Use Value: Maintains 24-bit data integrity at 1 MSPS sample rates using 25 kV/µs CMTI and <10 ns propagation delay.

Industrial PLC Digital I/O Isolation

Hybrid EV Battery Management

Use Scenario: Galvanically isolating discrete sensor inputs and relay outputs in programmable logic controllers.

IC Role / Device Role / Timing Role: Six independent isolation channels handling 24 V DC input sensing and 24 V DC output switching signals.

Use Value: Reduces BOM count by replacing six optocouplers with one IC, while improving response time and lifetime reliability.

Use Scenario: Isolating cell voltage monitoring and balancing signals between battery pack and BMS controller.

IC Role / Device Role / Timing Role: High-voltage barrier for UART or SPI communication across 400–800 V battery stacks.

Use Value: Certified 2500 VRMS isolation and 60-year life at rated voltage meet ASIL-D functional safety requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital isolator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM6403ARWZ	4-channel, integrated isolated DC-DC converter; higher quiescent current (12 mA/channel @ 1 Mbps); 2500 VRMS isolation.	Eliminates need for external isolated power supply but occupies larger footprint and has lower channel count.	Select when board space permits and isolated bias is unavailable; avoid when six independent channels or minimal power are critical.
ISO6760FDWR	6-channel, 50 Mbps max data rate; lower CMTI (100 kV/µs); same SOIC-16 package; 5000 VRMS isolation.	Better noise immunity in extreme EMI environments but insufficient for 100+ Mbps SPI or encoder links.	Prefer for cost-sensitive, lower-speed industrial I/O where 50 Mbps suffices and higher isolation voltage is required.

Compared with ADUM6403ARWZ and ISO6760FDWR, SI8460BA-B-IS1R uniquely balances six-channel count, 150 Mbps speed, sub-10 ns timing, and ultra-low power - making it optimal for high-fidelity motor control and isolated data acquisition where channel density and precision matter most.

Availability

SI8460BA-B-IS1R is available at Aetrix Electronics and suitable for industrial automation systems, hybrid electric vehicle battery management, and isolated switch mode supplies requiring stable component supply and long-term lifecycle support.

Supply support for SI8460BA-B-IS1R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and isolation technologies.

The Si84xx family was designed for high-reliability, high-speed digital isolation in harsh environments - targeting motor drives, renewable energy inverters, and automotive BMS where legacy optocouplers fail on speed, power, or lifetime.

FAQ

What is the maximum operating temperature for SI8460BA-B-IS1R at full 150 Mbps data rate?

The SI8460BA-B-IS1R is fully specified for operation from –40°C to +125°C at 150 Mbps with 15 pF load and 5 V supply. This rating is validated per Table 1 in the datasheet and applies to both VDD1 and VDD2 domains independently, ensuring reliable use in under-hood automotive and industrial ambient conditions where thermal margins are tight.

Does SI8460BA-B-IS1R require external passive components for basic operation?

Yes - SI8460BA-B-IS1R requires only two 0.1 µF ceramic bypass capacitors: one between VDD1 and GND1, and another between VDD2 and GND2. No pull-up resistors, termination networks, or startup circuitry are needed, simplifying layout and reducing BOM count compared to optocoupler-based isolation.

How does the isolation barrier in SI8460BA-B-IS1R compare to optocouplers in terms of lifetime reliability?

SI8460BA-B-IS1R provides a 60-year operational lifetime at rated working voltage, verified per IEC 60747-5-2 accelerated aging tests. Unlike optocouplers whose LED degradation limits lifespan, the capacitive isolation barrier exhibits no wear-out mechanism, delivering stable timing and CMTI performance over decades in continuous operation.

Can SI8460BA-B-IS1R operate with mismatched supply voltages on each side?

Yes - SI8460BA-B-IS1R supports independent VDD1 and VDD2 rails from 2.70 V to 5.5 V each. For example, VDD1 may be 3.3 V (MCU side) while VDD2 is 5 V (gate driver side), enabling seamless level translation without external logic buffers or level shifters.

Is SI8460BA-B-IS1R pin-compatible with other members of the Si846x family?

Yes - SI8460BA-B-IS1R shares identical pinout, package, and footprint with all Si8460/61/62/63 variants in the narrow-body SOIC-16 package. Channel configuration (e.g., SI8461 = 5:1, SI8462 = 4:2) differs internally, but PCB layout remains unchanged across the family for design reuse.

SI8460BA-B-IS1R Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: -

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Technology:: Capacitive Coupling

Type:: General Purpose

Isolated Power:: No

Number of Channels:: 6

Inputs - Side 1/Side 2:: 6/0

Channel Type:: Unidirectional

Voltage - Isolation:: 1000Vrms

Common Mode Transient Immunity (Min):: 25kV/µs (Typ)

Data Rate:: 150Mbps

Propagation Delay tpLH / tpHL (Max):: 9.5ns, 9.5ns

Pulse Width Distortion (Max):: 2.5ns

Rise / Fall Time (Typ):: 3.8ns, 2.8ns

Voltage - Supply:: 2.7V ~ 5.5V

Grade:: -

Qualification:: -

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

SI8460BA-B-IS1R FAQ

1.How can I place an order for SI8460BA-B-IS1R through Aetrix?

Please submit a Request for Quotation (RFQ) for SI8460BA-B-IS1R on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SI8460BA-B-IS1R reliable?

The price and inventory of SI8460BA-B-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8460BA-B-IS1R is usually 5 days.

3.What payment methods are accepted for SI8460BA-B-IS1R?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8460BA-B-IS1R transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI8460BA-B-IS1R?

SI8460BA-B-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI8460BA-B-IS1R order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SI8460BA-B-IS1R?

For technical support, including SI8460BA-B-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8460BA-B-IS1R requirements.

6.How does Aetrix verify that SI8460BA-B-IS1R is sourced from the original manufacturer or authorized distributors?

All SI8460BA-B-IS1R products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SI8460BA-B-IS1R meets industry standards.

7.What is the process for return or replacement of SI8460BA-B-IS1R?

All SI8460BA-B-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8460BA-B-IS1R, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SI8460BA-B-IS1R part is unused and in its original packaging.

Return procedure for SI8460BA-B-IS1R:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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