MAX14945EWE+ Maxim Integrated Integrated Circuit (Small Outline Packages) In Stock
Maxim Integrated MAX14945EWE+ is a galvanically isolated RS-485/RS-422 transceiver with 1-channel full-duplex capability in a 16-pin wide SOIC package, supporting data rates up to 1 Mbps with Schmitt trigger inputs and EIA-485/EIA-422 compliance. Provides ±15 kV ESD protection and 2500 Vrms isolation. Available from stock worldwide with fast shipping.
- Manufacturer
- Maxim Integrated
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- MAX14945EWE+ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.4200(MOQ 1)
- 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 MAX14945EWE+?
- 2500 Vrms galvanic isolation with ±15 kV ESD protection for robust RS-485/RS-422 communication in electrically noisy industrial environments
- Supports EIA-485 and EIA-422 differential interface standards at data rates up to 1 Mbps with Schmitt trigger inputs for noise immunity
- 16-pin wide SOIC-300 package integrates isolated RS-485 transceiver eliminating separate isolator + transceiver components for BOM simplification
What is MAX14945EWE+ used for?
The MAX14945EWE+ is used in industrial automation, process control, and building management systems requiring isolated RS-485 or RS-422 serial communication over long cable runs up to 1200 meters. Its 2500 Vrms isolation protects host microcontrollers from ground faults and high-voltage transients common in factory floor environments. The integrated isolation and transceiver reduce PCB area and simplify compliance with IEC 61000 EMC requirements.
What are the specifications of MAX14945EWE+?
| Manufacturer Package Code | 16-SOIC_W-300_MIL |
| Date Of Intro | 2016-09-01 |
| YTEOL | 9 |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| High Level Input Current-Max | 0.000125A |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-485; TIA-485; EIA-422 |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Out Swing-Min | 1.5V |
| Output Characteristics | 3-STATE |
| Output Low Current-Max | 0.004A |
| 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 |
| Receive Delay-Max | 240ns |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 12.5mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 1.71V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 1040ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Where can I find the MAX14945EWE+ datasheet?
MAX14945EWE+ Datasheet DownloadOfficial datasheet from Maxim Integrated
What are equivalent replacements for MAX14945EWE+?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What isolation voltage and ESD protection does the MAX14945EWE+ provide for industrial RS-485 networks?
The MAX14945EWE+ provides 2500 Vrms galvanic isolation between the logic-side and bus-side, protecting host microcontrollers from voltage differentials of up to 2500 Vrms. It also integrates ±15 kV ESD protection on RS-485 bus pins, guarding against electrostatic discharge events in harsh industrial wiring environments with differential data rates up to 1 Mbps.
Which communication standards does the MAX14945EWE+ support and at what maximum data rate?
The MAX14945EWE+ complies with EIA-485, TIA-485, and EIA-422 differential interface standards, supporting half-duplex and full-duplex RS-485 bus configurations. It operates at data rates up to 1 Mbps over twisted-pair cable, with Schmitt trigger inputs providing a switching threshold hysteresis of 0.2 V minimum to reject noise on industrial bus lines.
How does integrating the MAX14945EWE+ reduce BOM complexity compared to discrete isolator and RS-485 transceiver solutions?
A discrete isolated RS-485 design typically requires a digital isolator (e.g., Si8421) plus a separate RS-485 transceiver chip, consuming 2 ICs and multiple decoupling capacitors. The MAX14945EWE+ integrates both functions in a single 16-pin SOIC-300 package, reducing the component count by at least 1 IC and shrinking PCB footprint while meeting the same 2500 Vrms isolation requirement.
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Why Buy from FindMyChip
About Maxim Integrated
Maxim Integrated is a leading electronic component manufacturer. FindMyChip sources Maxim Integrated ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Maxim Integrated
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $9.8300 | $9.83 |
| 2+ | $9.0000 | $18.00 |
| 4+ | $6.7500 | $27.00 |
| 5+ | $6.6690 | $33.34 |
| 276+ | $6.5700 | $1813.32 |
| 506+ | $6.4200 | $3248.52 |
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