ISO3088DWG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments ISO3088DWG4 is an isolated RS-485/RS-422 line transceiver in a 16-pin SOIC package, combining a galvanic isolation barrier with EIA-485 and EIA-422 differential I/O and a Schmitt-trigger input receiver. It supports differential output signaling with up to 10 µA input leakage current for robust industrial bus communication. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- ISO3088DWG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.1944(MOQ 80)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ISO3088DWG4?
- Integrated galvanic isolation barrier with EIA-485 and EIA-422 differential transceiver for noise-immune industrial bus communication
- Differential Schmitt-trigger input receiver rejects bus noise and glitches on long cable runs in high-EMI factory environments
- 16-pin SOIC package integrates full isolation plus line-transceiver function, eliminating the need for separate isolator and driver ICs
What is ISO3088DWG4 used for?
The ISO3088DWG4 is deployed in industrial fieldbus systems requiring galvanic isolation on RS-485 or RS-422 communication links, such as Modbus RTU networks, motor drives, and PLC I/O expansion modules where ground potential differences between nodes can damage non-isolated transceivers. Its integrated isolation barrier protects host MCUs and backplane logic from industrial surges, ESD events, and common-mode voltages on long cable runs in factories and process-control installations. The device is also used in medical equipment and building automation panels where electrical isolation is mandated by safety standards for patient protection or inter-zone communication barriers.
What are the specifications of ISO3088DWG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| High Level Input Current-Max | 0.00001A |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-422; TIA-422; EIA-485; TIA-485 |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Out Swing-Min | 1.5V |
| Output Characteristics | 3-STATE |
| Output Low Current-Max | 0.008A |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Receive Delay-Max | 125ns |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 15mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3.15V |
| Supply Voltage-Nom | 5V |
| Supply Voltage1-Max | 5.5V |
| Supply Voltage1-Min | 4.5V |
| Supply Voltage1-Nom | 5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Transmit Delay-Max | 45ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Taiwan |
Where can I find the ISO3088DWG4 datasheet?
ISO3088DWG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for ISO3088DWG4?
Compatible alternatives and drop-in replacements for ISO3088DWG4:
Frequently Asked Questions
What interface standards does the ISO3088DWG4 support for industrial serial communication?
The ISO3088DWG4 supports both EIA-422 (TIA-422) and EIA-485 (TIA-485) differential bus standards, making it compatible with point-to-point RS-422 links at data rates up to several Mbps and with multi-drop RS-485 networks connecting up to 32 standard unit loads on a single twisted-pair cable. This dual-standard compliance allows the same 16-pin SOIC component to be used across Modbus RTU, PROFIBUS, DMX512, and other industrial protocols without hardware redesign.
How does the galvanic isolation in the ISO3088DWG4 protect industrial systems from ground faults?
The ISO3088DWG4 integrates a galvanic isolation barrier rated for the common-mode voltage differences that occur on RS-485 buses spanning multiple pieces of industrial equipment connected to different ground potentials. Without isolation, even a 10 V ground offset between two RS-485 nodes can exceed the ±7 V common-mode range of non-isolated transceivers, causing data corruption or device damage. The ISO3088DWG4's barrier allows the field-side bus to float relative to the logic side, blocking fault currents and protecting the host microcontroller.
What is the input leakage current of the ISO3088DWG4 receiver and why does it matter for RS-485 bus loading?
The ISO3088DWG4 specifies a maximum high-level input current of 10 µA (0.00001 A), which is extremely low compared to the 1 mA unit-load standard. This sub-unit-load input characteristic allows far more than the standard 32 devices to be connected on a single RS-485 bus segment before the driver's maximum fanout is exceeded, enabling dense multi-drop deployments in large industrial networks with many sensors and actuators sharing one twisted-pair cable.
What are the package details for the ISO3088DWG4 and how does its footprint compare to a two-chip solution?
The ISO3088DWG4 is housed in a 16-pin SOIC (JESD-30 R-PDSO-G16) package, integrating both the isolation barrier and the RS-485/RS-422 differential transceiver in a single body approximately 10 mm x 4 mm. A discrete two-chip solution using a separate digital isolator and a standard RS-485 driver would occupy two SOIC-8 footprints plus additional bypass capacitors, roughly doubling the PCB area and component count while adding inter-chip routing complexity on industrial I/O boards.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 80+ | $5.1944 | $415.55 |
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