My Inquiry
My Account
Skyworks Solutions Inc. SI8660ED-B-ISR
- Part No.:
- SI8660ED-B-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8660ED-B-ISR.pdf
- Description:
- DGTL ISO 5000VRMS 6CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,639
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI8660ED-B-ISR from Skyworks is a six-channel, unidirectional digital isolator with 5 kVRMS reinforced insulation, 150 Mbps data rate, <10 ns propagation delay, and selectable high-default fail-safe output mode. It operates across 2.5–5.5 V supplies and supports industrial and automotive systems requiring robust galvanic isolation in high-noise motor control and power conversion circuits.
For engineers reviewing the SI8660ED-B-ISR datasheet, SI8660ED-B-ISR pinout, SI8660ED-B-ISR application, or SI8660ED-B-ISR equivalent, this page delivers verified specifications, SOIC-16 wide-body package details, fail-safe behavior under undervoltage, CMTI of 50 kV/µs, and direct alternatives for isolated ADC interfaces, battery management systems, and traction inverters.
Technical Context
The SI8660ED-B-ISR implements RF-based on-off keying across a semiconductor isolation barrier-eliminating startup initialization and enabling deterministic timing. Its six channels are all input-side referenced (6:0 configuration), with Schmitt-trigger inputs and independent VDD1/VDD2 supplies supporting dual-domain signal transfer.
It features programmable fail-safe logic (default-high output during VDD1 loss), undervoltage lockout with 70 mV hysteresis per side, and guaranteed operation from –40 °C to +125 °C. All channels maintain sub-2.5 ns channel-to-channel skew and 5 ns minimum pulse width at 150 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 6 unidirectional, input-side only (VDD1 → VDD2 direction) |
| Max Data Rate | 150 Mbps - supports high-speed serial links in motor gate drivers and isolated SPI buses |
| Isolation Rating | 5 kVRMS reinforced - certified to UL 1577, VDE 0884-10, IEC 62368-1, and GB4943.1 |
| Propagation Delay | 8 ns typical - enables tight timing budgets in real-time control loops |
| Supply Voltage Range | 2.5–5.5 V per side - interoperable with 3.3 V microcontrollers and 5 V analog front-ends |
| CMTI | 50 kV/µs - rejects fast transients in inverter switching nodes without data corruption |
| Fail-Safe Mode | Default-high output - ensures safe state (e.g., gate disable) when input supply fails |
Pinout & Package
SI8660ED-B-ISR uses a RoHS-compliant 16-pin wide-body SOIC package (WB SOIC-16) with 8.0 mm creepage and clearance, rated for 5 kVRMS reinforced insulation. Land pattern complies with JEDEC MS-013AC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-side power supply | Supplies transmitter circuitry; must be stable before valid input signals applied |
| GND1 | Input-side ground reference | Return path for VDD1; requires low-inductance connection to bypass capacitor |
| IN1–IN6 | Digital input terminals | Schmitt-trigger inputs accept 2.0 V VIH / 0.8 V VIL; tolerate ±10 µA leakage |
| VDD2 | Output-side power supply | Supplies receiver and output drivers; powers outputs even if VDD1 is lost (fail-safe active) |
| GND2 | Output-side ground reference | Galvanically isolated from GND1; defines output logic levels and noise immunity baseline |
| OUT1–OUT6 | Digital output terminals | 50 Ω nominal output impedance; drive 15 pF loads with 2.5–4.0 ns rise/fall times |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates optical degradation and startup delays; no initialization required at power-on |
| Selectably default-high output | Ensures fail-safe logic state (e.g., PWM disable) during input-side power loss |
| Ultra-low power at 100 Mbps | 5.5 mA per channel at 5 V - reduces thermal load in densely packed power modules |
| High CMTI (50 kV/µs) | Prevents metastability in noisy environments like motor drives and on-board chargers |
| Automotive qualification | AEC-Q100 Grade 1 compliant - validated for battery management and traction inverter use |
Applications
| Industrial Motor Control | Isolated ADC Interface |
|---|---|
|
Use Scenario: Gate driving for 3-phase IGBT inverters in servo drives, where high dv/dt noise couples across isolation barriers. IC Role / Device Role / Timing Role: Six-channel isolator transfers PWM signals from controller to gate drivers while rejecting common-mode transients up to 50 kV/µs. Use Value: Enables compact, reliable gate drive design with <10 ns propagation delay and no timing drift over temperature. |
Use Scenario: Isolating serial output of precision delta-sigma ADCs (e.g., ADS131M04) in energy metering systems. IC Role / Device Role / Timing Role: Transfers 24-bit SPI data streams between isolated ADC domain and host MCU at up to 150 Mbps. Use Value: Maintains signal integrity with 350 ps peak jitter and 5 ns minimum pulse width - preserving ADC resolution. |
| Battery Management System | Traction Inverter Control |
|
Use Scenario: Communication between cell monitoring ICs (e.g., BQ79616) and main BMS controller across high-potential barriers. IC Role / Device Role / Timing Role: Provides six isolated bidirectional signal paths (via external direction control) for voltage/current/status telemetry. Use Value: AEC-Q100 qualification and 60-year life at rated voltage ensure long-term reliability in EV battery packs. |
Use Scenario: Signal isolation between MCU and high-voltage DC-link sensing circuits in electric vehicle traction inverters. IC Role / Device Role / Timing Role: Isolates analog sensor feedback (e.g., current shunt amplifiers) and fault signals (overcurrent, overtemperature). Use Value: 5 kVRMS reinforced insulation meets IEC 61851-23 requirements for EV charging and drivetrain safety. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM6601ARIZ-RL | 6-channel, 5 kV RMS, but uses iCoupler® capacitive isolation; higher 12 ns max propagation delay; 5 V only supply | Less suitable for mixed 3.3 V/5 V systems; lower CMTI (35 kV/µs); not AEC-Q100 qualified | Preferred where legacy Analog Devices ecosystem integration is required and automotive qualification is not needed |
| ISO6760FDWR | 6-channel, 5 kV RMS, capacitive isolation; 100 Mbps max data rate; 10 ns max propagation delay; 1.71–5.5 V supply | Limited to 100 Mbps - insufficient for high-resolution SPI or fast PWM sampling; no default-high fail-safe option | Valid for cost-sensitive industrial designs where 150 Mbps is unnecessary and fail-safe polarity is managed externally |
Compared with ADUM6601ARIZ-RL and ISO6760FDWR, SI8660ED-B-ISR delivers higher speed, superior noise immunity, automotive qualification, and factory-configured fail-safe logic-making it optimal for next-generation EV powertrain and industrial automation isolators.
Availability
SI8660ED-B-ISR is available at Aetrix Electronics and suitable for industrial motor control, battery management systems, traction inverters, and isolated data acquisition requiring stable component supply across extended temperature and high-reliability lifecycles.
Supply support for SI8660ED-B-ISR 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 leader in high-performance analog semiconductors, specializing in RF, timing, and isolation solutions for communications, automotive, and industrial markets.
The Si866x family was engineered specifically for high-noise, safety-critical applications demanding reinforced insulation, ultra-low power, and precise timing-targeting EV power systems, industrial PLCs, and medical isolation barriers.
FAQ
What is the isolation rating and safety certification status of SI8660ED-B-ISR?
SI8660ED-B-ISR provides 5 kVRMS reinforced insulation and is certified to UL 1577 (1 min), VDE 0884-10, IEC 62368-1, IEC 60601-1, EN60950-1, and GB4943.1. These approvals validate its use in medical, industrial, and automotive end-equipment requiring double or reinforced insulation barriers. SI8660ED-B-ISR meets all required creepage and clearance distances for 5 kVRMS in its WB SOIC-16 package.
Does SI8660ED-B-ISR support mixed-voltage operation between input and output sides?
Yes, SI8660ED-B-ISR supports independent 2.5–5.5 V supplies on VDD1 and VDD2. This allows interfacing a 3.3 V microcontroller (VDD1) with a 5 V gate driver or ADC (VDD2) without level-shifting. Input thresholds (VIH = 2.0 V, VIL = 0.8 V) and output drive strength (VOH ≥ VDD2 – 0.4 V) are maintained across the full supply range, ensuring robust cross-domain signaling for SI8660ED-B-ISR.
How does the fail-safe mode function in SI8660ED-B-ISR during input-side power loss?
SI8660ED-B-ISR is ordered with default-high fail-safe logic (denoted by "E" in the part number). When VDD1 drops below UVLO– (1.88 V), outputs hold their last valid state for ≤1 µs, then transition to logic high. This behavior is critical in safety-critical applications-for example, forcing gate drivers into off-state during controller power failure. VDD2 must remain powered for outputs to actively drive high.
What is the maximum achievable data rate and timing performance of SI8660ED-B-ISR?
SI8660ED-B-ISR supports up to 150 Mbps per channel with guaranteed 5 ns minimum pulse width and 8 ns typical propagation delay (tPLH/tPHL). Channel-to-channel skew is ≤0.5 ns, and pulse width distortion is ≤1.5 ns. These specs enable precise synchronization in high-speed isolated communication links such as isolated SPI, JESD204B auxiliary channels, and multi-axis motor control PWM distribution using SI8660ED-B-ISR.
Is SI8660ED-B-ISR qualified for automotive applications, and what does that entail?
Yes, SI8660ED-B-ISR is AEC-Q100 Grade 1 qualified (–40 °C to +125 °C ambient), manufactured using automotive-specific process flows, and supported with AIAG-compliant PPAP documentation, IMDS/CAMDS listings, and zero-defect methodology. This qualification validates its use in battery management systems, on-board chargers, and traction inverters-where field reliability and long-term parametric stability are mandatory for SI8660ED-B-ISR.
SI8660ED-B-ISR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 35kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 13ns, 13ns
- Pulse Width Distortion (Max):
- 4.5ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 2.5V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI8660ED-B-ISR FAQ
1.How can I place an order for SI8660ED-B-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8660ED-B-ISR 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 SI8660ED-B-ISR reliable?
The price and inventory of SI8660ED-B-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8660ED-B-ISR is usually 5 days.
3.What payment methods are accepted for SI8660ED-B-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8660ED-B-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8660ED-B-ISR?
SI8660ED-B-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8660ED-B-ISR 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 SI8660ED-B-ISR?
For technical support, including SI8660ED-B-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8660ED-B-ISR requirements.
6.How does Aetrix verify that SI8660ED-B-ISR is sourced from the original manufacturer or authorized distributors?
All SI8660ED-B-ISR 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 SI8660ED-B-ISR meets industry standards.
7.What is the process for return or replacement of SI8660ED-B-ISR?
All SI8660ED-B-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8660ED-B-ISR, 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 SI8660ED-B-ISR part is unused and in its original packaging.
Return procedure for SI8660ED-B-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI8660ED-B-ISR Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
