MAX3488EEPA+ - 12Mbps RS-485/422 Transceiver | Analog Devices
MPN： MAX3488EEPA+ ✓ 啟用中MAX3488EEPA+ 概覽
An RS-485/RS-422 transceiver is a differential interface IC used to connect digital logic to industrial communication networks. These interfaces use differential signaling to improve noise immunity and reject common-mode interference. The MAX3488EEPA+ belongs to the transceiver hierarchy of interface ICs, where its driver converts logic-level signals into balanced differential outputs and its receiver converts differential inputs into complementary logic outputs.
The principal operating specifications are a 3.3V supply, 12Mbps maximum signaling rate, and ±15kV ESD protection. Its slew-rate-limited driver reduces high-frequency transitions on the bus, which can help limit electromagnetic interference and reflections associated with improperly terminated cables. The package is an 8-pin PDIP, providing a through-hole footprint for industrial-control, instrumentation, and communications equipment.
The MAX3488E family combines low-power 3.3V operation with high-speed differential signaling. The E suffix identifies the enhanced ESD-protected family, while the exact temperature range and operating limits must be confirmed in the manufacturer data sheet for each ordering code. Its one-driver, one-receiver arrangement supports full-duplex RS-422 links and multi-driver RS-485-compatible networks when system-level bus arbitration, termination, and grounding are implemented correctly.
Typical uses include industrial automation links, data-acquisition systems, building controls, test equipment, and embedded serial networks. The 12Mbps capability suits short, point-to-point or properly terminated balanced connections, while the slew-rate-limited output helps reduce EMI in cabinet-mounted systems. Designers should still evaluate cable length, topology, termination, and ground potential because transceiver speed alone does not determine reliable bus distance.
For PCB implementation, place the transceiver close to the connector and route the differential pair as a tightly coupled pair over a continuous reference plane. Add the required bus termination at appropriate physical endpoints and provide low-impedance connections between the interface ground and the equipment ground. Disable unused driver and receiver paths where appropriate to avoid an active output driving the network unnecessarily.
This page combines the verified manufacturer and distributor information with practical interface-design guidance, transparent pricing context, and clearly qualified replacement analysis. It distinguishes confirmed drop-in variants from lower-information package alternatives rather than presenting every electrically similar device as a safe PCB replacement.
直接替換替代品，適用於 MAX3488EEPA+ — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MAX3488EEPA+ （相同外形與佔位） — 差異在於 Driver Count, Receiver Count, Maximum Data Rate, Interface Standards.
MAX3488CPA+
✅ 直接替換聯絡詢價
查看資料表 →MAX3488ECPA+
✅ 直接替換聯絡詢價
查看資料表 →MAX3488EPA+
✅ 直接替換聯絡詢價
查看資料表 →MAX3488EEPA+ 規格
| 供應電壓 | 3.3 V |
| Maximum Data Rate | 12 Mbps |
| ESD Protection | ±15 kV |
| Interface Standards | RS-422 and RS-485 |
| Transceiver Count | 1 per device |
| Driver Count | 1 per device |
| Receiver Count | 1 per device |
| Driver Output Type | Slew-rate-limited true differential driver |
| 腳位數 | 8 pins |
| 封裝 | 8-pin PDIP |
| 安裝類型 | Through-hole |
| Production Status | PRODUCTION |
MAX3488EEPA+ 8-pin pdip 腳位配置指南
MAX3488EEPA+（8-pin pdip 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： MAX3488EEPA+.
請參閱 資料表 以查看完整腳位配置。
典型應用
MAX3488EEPA+ 適用於 6 應用s: Industrial Automation Serial Links, Data Acquisition and Instrumentation, Building and HVAC Controls, Test and Measurement Equipment, Embedded Control Networks, Point-to-Point RS-422 Equipment.
Industrial Automation Serial Links
MAX3488EEPA+ fits industrial automation links that require a compact 3.3V differential interface. Its 12Mbps maximum data rate supports high-speed data transfer, while the slew-rate-limited driver reduces the severity of fast edge transitions that can increase EMI in an industrial cabinet. The ±15kV ESD rating adds useful interface ruggedness where cables connect to external equipment. Use one MAX3488EEPA+ for a full-duplex RS-422 point-to-point connection or for an appropriately managed RS-485 node. Termination, common-mode grounding, and bus direction control must still be designed for the actual cable and topology.
推薦
Data Acquisition and Instrumentation
MAX3488EEPA+ is appropriate for data-acquisition equipment that must exchange measurement or configuration data over a balanced serial link. Its 12Mbps capability allows short, high-rate connections between an instrument controller and a remote measurement module. The one-driver, one-receiver arrangement supports full-duplex RS-422 communication, while the slew-rate-limited outputs help control reflected transitions on imperfectly terminated cables. The 3.3V supply requirement permits direct interfacing with modern low-voltage control logic when the voltage levels and enable timing in the verified manufacturer documentation are satisfied.
推薦
Building and HVAC Controls
MAX3488EEPA+ can connect low-voltage controllers, sensors, and monitoring modules in building-control networks using RS-485 or RS-422 differential signaling. Its 12Mbps data rate covers short control links, and ±15kV ESD protection is valuable when the transceiver is placed near a cable entry or external connector. The slew-rate-limited driver reduces high-frequency EMI that could interfere with nearby control electronics. Installation practice remains important: use twisted balanced wiring, a suitable reference plane, protective grounding, and endpoint termination where required by the network design.
推薦
Test and Measurement Equipment
MAX3488EEPA+ is well suited to communicating with remote test fixtures, programmable instruments, and laboratory controller boards. The 12Mbps maximum rate provides ample link bandwidth for short bench-top or rack-level connections, while the differential interface improves signal integrity relative to single-ended communication. Its 8-pin PDIP package is convenient for through-hole prototyping and repair. Designers should compare the complete transceiver timing and enable characteristics with the controller before implementation, and should keep the balanced pair routed away from switching nodes and noisy motors.
推薦
Embedded Control Networks
MAX3488EEPA+ provides a compact physical layer for embedded controllers communicating with distributed actuators, sensors, or service modules. Operating from 3.3V supports integration with low-voltage processors and programmable logic, while the 12Mbps capability allows low-latency command and status traffic over short balanced links. The transmitter’s slew-rate-limited behavior helps control unwanted high-frequency energy on the cable. Firmware or hardware direction control must prevent multiple drivers from commanding the bus simultaneously, and the board should provide unobstructed differential routing plus the required termination network.
推薦
Point-to-Point RS-422 Equipment
MAX3488EEPA+ is appropriate for full-duplex RS-422 links because it combines one transmitter and one receiver in an 8-pin PDIP package. The differential driver and receiver provide a robust interface for transferring commands and status data between two equipment locations over balanced cabling. At up to 12Mbps, it accommodates short, high-speed equipment links, while its ±15kV ESD protection improves resilience at connector-facing circuitry. A reliable implementation still requires confirmation of the exact enable behavior, supply limits, and propagation timing from the manufacturer data sheet, along with correct differential pairing and termination.
推薦
推薦產品摘要
工程參考資料，適用於 MAX3488EEPA+ — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MAX3488CPA+ | MAX3488ECPA+ | MAX3488EPA+ |
|---|---|---|---|---|
| Package | 8-pin PDIP | 8-pin PDIP - same package | 8-pin PDIP - same package | 8-pin PDIP - same package |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Maximum Data Rate | 12 Mbps | 12 Mbps | 12 Mbps | 12 Mbps |
| ESD Protection | ±15 kV | ±15 kV | ±15 kV | ±15 kV |
| Interface Standards | RS-422 and RS-485 | RS-422 and RS-485 | RS-422 and RS-485 | RS-422 and RS-485 |
| Driver and Receiver Count | 1 driver and 1 receiver | 1 driver and 1 receiver | 1 driver and 1 receiver | 1 driver and 1 receiver |
| Driver Edge Rate | Slew-rate limited | Slew-rate limited | Slew-rate limited | Slew-rate limited |
主要差異化特點
- Same-package PCB reuse (對比MAX3488CPA+)
- High-speed differential interface in a through-hole package (對比MAX3488ECPA+)
- EMI-conscious edge control (對比MAX3488EPA+)
設計說明
Route the differential driver and receiver paths as a tightly coupled pair over a continuous reference plane, and keep the pair away from switching power nodes, relays, and high-current edges. Place ESD-protection and termination components near the connector and transceiver according to the manufacturer’s recommended layout. Keep the ground reference continuous beneath the pair so differential voltage is referenced to a low-impedance return path.
Do not assume that a 12Mbps signaling rate permits 12Mbps operation over an arbitrary cable. Bus length, conductor impedance, stub lengths, topology, termination, ground offsets, and transceiver timing all affect reliable communication. Use balanced twisted-pair wiring, terminate the bus only at the designated physical endpoints, and verify the complete network with the worst-case cable and loading conditions.
The slew-rate-limited driver can reduce EMI and reflections associated with fast edges, but it does not eliminate radiated or conducted emissions. Keep external cables away from switching circuitry, maintain a short ground path, use common-mode filtering when required, and provide chassis-to-circuit grounding through the installation rather than relying on the signal ground alone. Confirm compliance with the finished product’s applicable EMC requirements.
Operate MAX3488EEPA+ from a regulated 3.3V supply and confirm the exact supply limits, current consumption, and enable thresholds in the manufacturer data sheet. Place local bypass capacitance close to the supply pins with a short return path to the ground plane. Because the interface may be exposed to external cables, combine careful grounding and cable design with the device’s ±15kV ESD protection rather than treating ESD protection as a substitute for enclosure-level surge protection.
合規資訊
The supplied product-page and distributor excerpts do not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is marked not_applicable because no automotive qualification claim was provided for this ordering code.