MAX1480ECEPI+ - Isolated RS-485/RS-422 Transceiver | Analog
MPN: MAX1480ECEPI+ ✓ AktifMAX1480ECEPI+ Ringkasan
An RS-485/RS-422 transceiver is a physical-layer interface IC that converts digital logic signals into differential bus levels and receives differential bus signals. In the component hierarchy, it belongs to interface ICs and data transceivers, supporting the larger category of communication semiconductors. Its isolation function helps prevent ground-potential differences and common-mode transients from coupling between equipment and a remote bus.
The MAX1480ECEPI+ combines one transmit driver with four receive channels in one 28-pin package. Its 4.5 V to 5.5 V operating supply supports conventional 5 V communication equipment. The ±15 kV ESD rating is the principal protection figure specified for exposed data-interface pins, making the device suitable for industrial environments where cables can acquire electrostatic discharge before reaching the equipment.
This device is intended for isolated RS-485 and RS-422 links used to connect controllers, sensors, data-acquisition equipment, and remote instrumentation. The single-driver, four-receiver arrangement supports a point-to-multipoint topology when the bus wiring, termination, and grounding strategy are designed correctly. RS-422 favors point-to-point or one-driver configurations, while RS-485 permits multiple drivers under controlled bus management.
A principal design consideration is that isolation does not replace correct bus engineering. The data lines still require suitable protection, cable routing, characteristic-impedance control, termination at appropriate endpoints, and common-mode analysis. The ±15 kV ESD capability should also be understood as an interface protection specification rather than a guarantee against every external surge event.
Engineers should consult the manufacturer datasheet for the complete pin-description table, isolation ratings, timing, recommended application circuit, and package dimensions before assigning PCB tracks. DIP-28 construction also requires adequate spacing for through-hole assembly and should be checked against the enclosure, connector, and thermal requirements of the final system.
This page combines the confirmed interface, supply, protection, package, and topology characteristics with application guidance, a parameter-level comparison, and actionable layout considerations. It is designed to help engineers identify the correct isolated transceiver while separating confirmed device facts from parameters that require review in the manufacturer documentation.
Alternatif penggantian untuk MAX1480ECEPI+ — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian MAX1480ECEPI+ (sama faktor bentuk dan footprint) — berbeda di dalam Package, Product Type, Data Rate, Isolation, Number of Drivers.
MAX1480ECCPI+
✅ Drop-InKontak untuk harga
Lihat Datasheet →MAX1480ECEPI
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MAX1480BEPI+
✅ Drop-InKontak untuk harga
Lihat Datasheet →MAX1480BCPI+
✅ Drop-InKontak untuk harga
Lihat Datasheet →MAX1480EAEPI
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MAX1480ECEPI+ Spesifikasi
| Product Type | Isolated RS-485/RS-422 transceiver |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Number of Drivers | 1 |
| Number of Receivers | 4 |
| Supported Standards | RS-485 and RS-422 |
| ESD Protection | ±15 kV |
| Isolation | Galvanic isolation |
| Package Type | 28-pin PDIP |
| Total Pin Count | 28 pins |
| Tipe Mounting | Through-hole |
| Temperature Grade | Industrial |
| Package Shape | Rectangular |
MAX1480ECEPI+ rectangular Diamant Konfigurasi Panduan
Konfigurasi pin untuk MAX1480ECEPI+ (rectangular pakai pakai). Penomoran pin, fungsi, dan diagram koneksi ditetapkan dalam datasheet produsen. Lihatnya untuk footprint dan pedoman perpindahan paruh.
Tidak ada data diatribut pin yang tersedia untuk MAX1480ECEPI+.
Lihat ke: datasheet produk untuk konfigurasi pin penuh.
Aplikasi Umum
MAX1480ECEPI+ cocok untuk 6 aplikasis: Isolated Industrial Sensor Bus, Industrial Data Acquisition, Remote Instrumentation, Building Automation Gateway, Telecommunications Equipment, Process-Control Interface.
Isolated Industrial Sensor Bus
The MAX1480ECEPI+ fits an isolated industrial sensor bus that carries commands from a central controller to remote sensing equipment and returns measured data over differential lines. Its one driver and four receivers support one transmitting source with several receiving nodes when the wiring follows a valid RS-485 topology. The 4.5 V to 5.5 V supply suits 5 V equipment, while ±15 kV ESD protection adds robustness where field cables can receive electrostatic discharge. The design must still verify receiver-count limits, bus termination, common-mode range, and the complete isolation rating in the manufacturer datasheet.
Industrial Data Acquisition
The MAX1480ECEPI+ can isolate a data-acquisition controller from remote analog or digital measurement equipment connected by RS-485 or RS-422. One driver may communicate with up to four receiver channels when each receiver is wired for the intended topology, reducing the number of external interface components. Its 28-pin PDIP package remains straightforward for through-hole industrial assemblies, and galvanic isolation helps limit fault propagation between the acquisition chassis and field equipment. Confirm maximum data rate, channel timing, isolation withstand voltage, and operating-temperature limits before finalizing the acquisition board.
Remote Instrumentation
The MAX1480ECEPI+ is appropriate for remote instrumentation links that place distance between a controller and measurement hardware. RS-422 signaling can support a one-driver, multiple-receiver arrangement with correctly terminated lines, while the isolated architecture separates bus ground potential from the local equipment ground. The four receivers allow multiple instrument connections to be monitored without requiring four separate transceiver packages. Designers should validate cable length, baud rate, isolation capacitance, surge margin, and common-mode behavior against the MAX1480E manufacturer datasheet before deploying the interface in the field.
Building Automation Gateway
A building automation gateway can use the MAX1480ECEPI+ for an isolated RS-485/RS-422 connection to HVAC controllers, access equipment, or environmental sensors. The single driver supports command transmission from the gateway, while four receiver channels can serve multiple field endpoints over a suitable bus arrangement. Galvanic isolation is valuable when connected equipment is installed on separate electrical branches with different ground references. The ±15 kV ESD rating improves cable-entry resilience, but surge coordination, fuse selection, PCB clearance, and enclosure grounding remain separate design requirements.
Telecommunications Equipment
The MAX1480ECEPI+ can provide an isolated balanced data port for telecommunications or network-interface equipment requiring RS-485 or RS-422 connectivity. Its 4.5 V to 5.5 V operating range fits conventional 5 V logic environments, and the 28-pin PDIP package supports through-hole construction. Isolation helps maintain separation between line-side and system-side circuits when ground conditions differ across a rack or outdoor enclosure. Confirm the device's isolation class, surge tolerance, operating-temperature range, and transmission timing before using it in safety- or availability-critical telecommunications equipment.
Process-Control Interface
The MAX1480ECEPI+ suits process-control equipment that communicates with distributed controllers, analyzers, or field modules over an isolated balanced line. The one-driver, four-receiver configuration can consolidate several receive points in a controller assembly, while the isolation barrier helps contain common-mode transients between the controller and remote process equipment. A robust implementation requires proper biasing, termination only at designated endpoints, careful cable routing, and sufficient creepage and clearance around the isolation boundary. The manufacturer datasheet should govern the final signal-integrity and isolation-layout decisions.
Data referensi engineering untuk MAX1480ECEPI+ — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | MAX1480ECCPI+ | MAX1480ECEPI | MAX1480BEPI | MAX1480BCPI | MAX1480EAEPI |
|---|---|---|---|---|---|---|
| Package | 28-pin PDIP | 28-pin PDIP | 28-pin PDIP | 28-pin PDIP | 28-pin PDIP | 28-pin PDIP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Product Type | Isolated RS-485/RS-422 transceiver | Isolated RS-485/RS-422 data interface | Isolated RS-485/RS-422 data interface | MAX1480E-family isolated interface | MAX1480E-family isolated interface | MAX1480E-family isolated interface |
| Mounting Type | Through-hole | Through-hole | Through-hole | Through-hole | Through-hole | Through-hole |
Diferensiator Kunci
- Integrated one-driver and four-receiver arrangement (vsMAX1480BEPI)
- Documented high-level bus protection (vsMAX1480ECCPI+)
- Complete isolated differential interface (vsMAX1480BCPI)
Catatan Desain
Use the MAX1480E manufacturer package drawing to define the 28-pin PDIP footprint and preserve the isolation boundary between logic-side and bus-side circuitry. Keep copper, solder mask, and exposed conductive features from bridging that boundary. Place input and output protection components near their corresponding connector or bus pins so surge current is diverted before it reaches sensitive transceiver nodes.
Do not assume that ±15 kV ESD protection eliminates the need for external surge protection. RS-485 and RS-422 cables can encounter industrial transients, ground faults, and large common-mode steps. Determine the required withstand level from the installation, then coordinate TVS devices, fuses or resistors, grounding, and cable routing with the transceiver's absolute-maximum ratings and recommended application circuit.
Confirm the maximum supported data rate, receiver input impedance, driver output impedance, and propagation delay in the manufacturer datasheet. Terminate the differential network only where the recommended topology calls for termination, and keep the two conductors of each differential pair together through the PCB. This reduces imbalance, reflections, and conversion of common-mode noise into differential noise.
Provide local supply decoupling and route the isolated interface power domains according to the manufacturer application circuit. Avoid placing high-energy switching or return-current paths beneath the isolation barrier. Maintain practical clearance across the isolation boundary and verify that connector shields, chassis ground, and logic ground follow the equipment's grounding strategy rather than creating an unintended surge-current path.
Informasi Konformitas
The MAX1480E product page confirms the isolated RS-485/RS-422 interface function and ±15 kV ESD protection but does not provide extractable RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. This industrial interface IC is not identified as an AEC-Q100-qualified automotive device.