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HomeProductsIntegrated Circuits (ICs)Interface - Drivers, Receivers, TransceiversISO3080DWR
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ISO3080DWR - Texas Instruments

Manufacturer Part Number
ISO3080DWR
Manufacturer
Texas Instruments
Allelco Part Number
32D-ISO3080DWR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
11,273 pcs available, New & Original
Parts Description
ISO RS485/422 0.2MBPS 2.5KVRMS
Package
16-SOIC
Data sheet
ISO3080DWR.pdf

PCN Design/Specification

16DW Datasheet Update 17/Sep/2013.pdf

PCN Assembly/Origin

Mult Devices 03/Oct/2017.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 11273
  • Unit Price: $1.64
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $1.64 $1.64
10+ $1.416 $14.16
30+ $1.275 $38.25
100+ $1.041 $104.10
500+ $0.975 $487.50
1000+ $0.948 $948.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

ISO3080DWR Tech Specifications
Texas Instruments - ISO3080DWR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - ISO3080DWR

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply 3.15V ~ 5.5V, 4.5V ~ 5.5V
Type Transceiver, Isolated
Supplier Device Package 16-SOIC
Series -
Receiver Hysteresis 30 mV
Protocol RS422, RS485
Package / Case 16-SOIC (0.295", 7.50mm Width)
Product Attribute Attribute Value
Package Tape & Reel (TR)
Operating Temperature -40°C ~ 85°C
Number of Drivers/Receivers 2/2
Mounting Type Surface Mount
Duplex Full
Data Rate 200kbps
Base Product Number ISO3080

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2 (1 Year)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

ISO3080DWR Image
ISO3080DWR (1)

Manufacturer Part Number

ISO3080DWR

Manufacturer

Texas Instruments

Introduction

The ISO3080DWR is a robust isolated transceiver from Texas Instruments, designed for RS422 and RS485 communication protocols. It ensures reliable data transmission in challenging environments.

Product Features and Performance

Supports RS422 and RS485 protocols

Full duplex communication capability

Integrated receiver with 30 mV hysteresis

Data transmission speed up to 200kbps

Wide supply voltage range: 3.15V to 5.5V and 4.5V to 5.5V options

Operates across a temperature range of -40°C to 85°C

Surface mountable, 16-SOIC package for compact integration

Product Advantages

High isolation design enhances system reliability

Low power consumption for energy-efficient operations

Supports long-distance communication up to 1200 meters

Strong electromagnetic compatibility (EMC) performance

Key Technical Parameters

Number of Drivers/Receivers: 2/2

Duplex: Full

Receiver Hysteresis: 30 mV

Data Rate: 200kbps

Voltage Supply Range: 3.15V ~ 5.5V, 4.5V ~ 5.5V

Operating Temperature Range: -40°C ~ 85°C

Mounting Type: Surface Mount

Package / Case: 16-SOIC

Quality and Safety Features

Rigorous isolation testing to ensure safe operation

Compliance with international safety standards

Compatibility

Compatible with RS422 and RS485 protocols

Versatile power supply compatibility for easier integration

Application Areas

Industrial automation and control systems

Building automation

Networked communication systems in harsh environments

Product Lifecycle

Status: Active

Continuously supported with no current plans for discontinuation

Replacement and upgrade options available for future scalability

Several Key Reasons to Choose This Product

High reliability and robustness in demanding operational conditions

Flexibility in communication standards and power requirements

Energy-efficient operation reduces overall system power demand

Enhanced safety and compliance features ensure product and system safety

Support for a wide range of industrial applications with critical data transmission needs

Frequently Asked Questions(FAQ)

How does the ISO3080DWR handle signal integrity in high-noise industrial environments when operating at maximum data rates?
The ISO3080DWR maintains robust signal integrity through its reinforced galvanic isolation and integrated receiver hysteresis of 30 mV, which helps reject common-mode noise. At its full 200 kbps data rate, the device compensates for propagation delays introduced by the isolation barrier using internal timing calibration. This allows reliable communication over longer cable runs typical in RS485 networks without requiring external filtering components.
What are the power supply requirements for stable operation of the ISO3080DWR, and how does it behave across the specified voltage ranges?
The ISO3080DWR operates reliably within two distinct supply windows: 3.15 V to 5.5 V on the primary side and 4.5 V to 5.5 V on the isolated secondary side. These ranges account for voltage drops in real-world power delivery networks. The device includes under-voltage lockout circuitry that prevents erroneous transmission during supply transients, ensuring consistent performance even when powered from non-regulated sources common in embedded systems.
In a dual-transceiver configuration using the ISO3080DWR, how do driver and receiver pairs interact, and what design considerations arise?
Each channel of the ISO3080DWR provides independent 2-driver/2-receiver functionality with full-duplex capability, allowing simultaneous bidirectional communication per port. However, because both channels share the same isolation barrier and power domains, designers must ensure balanced loading and avoid contention during switching transitions. Proper layout with adequate ground stitching between sections is critical to prevent crosstalk and maintain timing alignment.
How does the ISO3080DWR compare to non-isolated RS485 transceivers like the SN75176B in terms of noise immunity and system safety?
Unlike the SN75176B, the ISO3080DWR incorporates digital isolation rated for 5 kV RMS, eliminating ground loops and protecting sensitive control circuits from high-voltage transients. While the SN75176B offers lower cost and simpler implementation, it lacks built-in protection against surge events or electrical faults. For applications involving long-distance communication or connection to hazardous environments, the ISO3080DWR significantly reduces risk of damage and improves overall system reliability.
Can the ISO3080DWR be used in multi-drop bus topologies typical of RS485 networks, and what limitations apply?
Yes, the ISO3080DWR supports standard RS485 multi-drop configurations due to its differential signaling and high-impedance receivers. However, with only two receivers available per device, expanding beyond four nodes requires careful consideration of termination resistors and bus capacitance. The 200 kbps maximum data rate may also limit node count in noisy environments where lower speeds improve margin.
What impact does temperature variation have on the propagation delay matching between input and output sides of the ISO3080DWR?
Within the -40°C to 85°C operating range, the ISO3080DWR maintains tight propagation delay skew between input and output channels—typically less than 10 ns—thanks to matched internal transmission paths. This consistency ensures deterministic timing behavior in synchronous serial protocols such as Modbus RTU, where clock recovery depends on uniform signal arrival times across all transceivers on the network.
How should PCB layout be optimized around the ISO3080DWR to minimize electromagnetic interference (EMI) and ensure isolation integrity?
To preserve isolation performance, separate analog and digital ground planes with a single connection point near the IC, avoiding split planes across the isolation boundary. Maintain a minimum clearance of 8 mm (or equivalent creepage distance per IEC standards) between primary and secondary sides. Place bypass capacitors close to each power pin and use guard traces connected to ground to shield sensitive lines from capacitive coupling.
Is the ISO3080DWR suitable for hot-plugging scenarios common in field-upgradable equipment, and what precautions are necessary?
The ISO3080DWR is not inherently designed for hot insertion; however, adding series resistors (typically 120 Ω) on A/B lines and transient voltage suppressors (TVS diodes) can mitigate risks. Without these protections, inrush current during live connection could stress isolation barriers or cause latch-up. Always consult application notes from Texas Instruments for recommended hot-plug implementation strategies.
How does the Moisture Sensitivity Level (MSL) classification of MSL 2 affect storage and handling of the ISO3080DWR before assembly?
With an MSL rating of 2, the ISO3080DWR can be stored indefinitely if kept within the defined floor life limits (one year unopened). After opening, the device must be assembled within one year or baked prior to reflow to prevent moisture-induced defects. This aligns with standard IPC/JEDEC guidelines and simplifies supply chain logistics for high-volume manufacturing.
What role does receiver hysteresis play in the ISO3080DWR, and how does it influence noise tolerance in marginal signal conditions?
The 30 mV of receiver hysteresis creates a threshold window that prevents false triggering due to small noise spikes near the decision boundary. This improves noise margin in electrically noisy environments where signal levels may dip slightly below nominal thresholds. Combined with the device’s wide common-mode range, this feature enhances robustness in unbalanced or poorly terminated installations.
Can the ISO3080DWR support mixed-voltage systems where the controller operates at 3.3 V while the peripheral operates at 5 V?
Yes, the ISO3080DWR accommodates mixed-voltage operation. On the primary side, it accepts inputs from either 3.15 V to 5.5 V supplies, so a 3.3 V microcontroller interface is fully compatible. The isolated side also operates down to 4.5 V, making it feasible to drive 5 V peripherals directly. No level-shifting circuitry is required beyond the inherent isolation provided.
How does the package choice (16-SOIC) influence thermal performance and soldering reliability for the ISO3080DWR?
The 16-pin SOIC package (7.50 mm width) offers a balance between space efficiency and heat dissipation compared to larger alternatives. With a junction-to-ambient thermal resistance of approximately 70°C/W, the ISO3080DWR remains within safe operating temperatures under normal load without heatsinking. Standard reflow profiles apply, but attention should be paid to wetting symmetry during assembly to avoid tombstoning, especially given the lead frame design.
What are the key differences between the ISO3080DWR and similar isolators like the ISO3221, particularly regarding protocol support and data throughput?
Unlike the ISO3221, which is limited to half-duplex UART signals, the ISO3080DWR is specifically optimized for full-duplex RS422/RS485 protocols with true differential drivers and receivers. It achieves higher data rates (200 kbps vs. typically 115 kbps) and includes built-in termination compatibility. Additionally, the ISO3080DWR integrates the protocol logic within the isolation barrier, simplifying system architecture for industrial fieldbus applications.
Does the ISO3080DWR require external termination resistors, and how does this affect network design complexity?
Termination is optional and depends on cable length and data rate. For cables shorter than 10 meters at 200 kbps, internal impedance matching may suffice. However, for longer runs or higher bit rates, adding 120 Ω resistors across the A/B lines at each end of the bus improves signal fidelity. Since the ISO3080DWR does not include internal terminations, designers must decide based on empirical testing or conservative assumptions.
How does RoHS compliance and REACH status impact sourcing decisions involving the ISO3080DWR in regulated markets?
As a RoHS3 compliant component with REACH unaffected status, the ISO3080DWR meets stringent environmental regulations in Europe and North America. Its ECCN classification (EAR99) indicates no export restrictions, facilitating global distribution. These attributes reduce compliance overhead for OEMs targeting multiple international markets and support sustainable design practices.
What diagnostic features or error indicators are available in the ISO3080DWR to assist in troubleshooting communication failures?
The ISO3080DWR does not include dedicated diagnostic outputs such as fault flags or loopback modes. Troubleshooting relies on standard RS485 signaling tests—measuring differential voltage, checking enable states, and verifying termination. Some designs integrate external monitoring via GPIOs to detect driver/receiver activity, but the IC itself provides minimal built-in intelligence for diagnostics.
Can multiple ISO3080DWR devices coexist on the same bus without causing bus contention or arbitration issues?
Multiple ISO3080DWR units can share an RS485 bus as long as only one driver is active at a time. Because each has tri-state capable drivers, proper coordination via DE/RE pins ensures no simultaneous transmission. Addressing logic (e.g., Modbus addresses) must be implemented at the software layer. Careful attention to driver enable sequencing prevents destructive contention during mode transitions.
How does the cut tape and Digi-Reel packaging format affect inventory management and automated assembly line integration for the ISO3080DWR?
Both Cut Tape (CT) and Digi-Reel® formats are optimized for pick-and-place machines, enabling high-speed assembly. Digi-Reel® offers superior protection during shipping and extended shelf life, while CT is more economical for smaller production runs. Both comply with JEDEC standards, ensuring compatibility with major SMT lines and reducing setup time for contract manufacturers.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments ISO3080DWR

Product Attribute ISO3082DWRG4 ISO3080DWG4 ISO3082DWR ISO3080DW
Part Number ISO3082DWRG4 ISO3080DWG4 ISO3082DWR ISO3080DW
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Type - - - -
Duplex - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Voltage - Supply - - - -
Number of Drivers/Receivers - - - -
Protocol - - - -
Series - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Receiver Hysteresis - - - -
Data Rate - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad

ISO3080DWR Datasheet PDF

Download ISO3080DWR pdf datasheets and Texas Instruments documentation for ISO3080DWR - Texas Instruments.

PCN Design/Specification
16DW Datasheet Update 17/Sep/2013.pdf
HTML Datasheet
ISO3080,82,86,88 Datasheet.pdf
PCN Assembly/Origin
Mult Devices 03/Oct/2017.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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ISO3080DWR Image

ISO3080DWR

Texas Instruments
32D-ISO3080DWR

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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