MAX3490EPA+ - 10Mbps RS-485/RS-422 Transceiver | Analog Devices
부품 번호: MAX3490EPA+ ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $3.35 | $3.35 |
| 10 | $3.35 | $33.50 |
| 100 | $3.35 | $335.00 |
| 500 | $3.35 | $1,675.00 |
| 1,000 | $3.35 | $3,350.00 |
MAX3490EPA+ 개요
An RS-485/RS-422 transceiver is an interface IC that converts digital logic-level signals into differential bus signals and converts received differential signals back into CMOS-compatible data. These differential links are used in industrial automation, instrumentation, building controls, and data communications because they are more resistant to common-mode noise than single-ended interfaces. The MAX3490EPA+ belongs to the transceiver class within interface ICs and supports point-to-point or multipoint differential communication architectures.
The principal verified features include one driver and one receiver, full duplex operation, a 3V to 3.6V supply range, and operation up to 10Mbps. The MAX3490EPA+ is identified as a true RS-485/RS-422 transceiver, while the slew-rate-limited driver helps control edge rates and reduce unwanted reflections and EMI. The verified distributor listing also identifies the package as 8-pin PDIP and lists the device as a 1/1 transceiver.
The device is suited to interfaces where low-voltage digital control communicates with a field bus over a cable. Its 10Mbps capability can support high-speed data transfer, industrial control links, and equipment-to-equipment communication. The driver’s short-circuit current limiting and thermal shutdown protection help protect the output stage when a bus fault or improper termination creates excessive output stress. Applications must still observe the manufacturer’s absolute maximum ratings and recommended external-circuit requirements.
For PCB implementation, use the 8-pin PDIP footprint and route the differential bus with controlled impedance when cable length, data rate, or EMI requirements justify it. Keep transceiver supply bypassing close to VCC and GND, connect the receiver and driver interface pins according to the datasheet, and select termination appropriate to the cable topology. The verified operating temperature range is -40°C to 85°C, making the part suitable for industrial temperature environments when the surrounding system requirements are met.
This page consolidates verified manufacturer and distributor information, pricing references, interface selection guidance, and practical design notes for engineers evaluating the MAX3490EPA+. It does not infer unverified electrical parameters; unavailable values are explicitly marked for follow-up against the manufacturer datasheet.
드롭인 대체품: MAX3490EPA+ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MAX3490EPA+ (동일 폼 팩터 및 풋프린트) — 차이점: Driver Protection, Mounting Type, Package, Product Type, Supply Voltage Range.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
MAX3490CPA+
✅ 드롭인✓ 재고 있음
$6.9901 / 개
데이터시트 보기 →MAX3490EPA
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX3490EPA+ 사양
| Product Type | RS-485/RS-422 full-duplex transceiver |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| Supply Voltage Range | 3 V to 3.6 V |
| 데이터 속도 | 10 Mbps |
| Supported Protocols | RS-485 and RS-422 |
| Duplex Mode | Full duplex |
| Driver Type | Slew-rate-limited driver |
| Driver Protection | Short-circuit current limiting and thermal shutdown protection |
| 동작 온도 범위 | -40 °C to +85 °C |
| 패키지 | 8-pin PDIP |
| 실장 유형 | Through hole |
MAX3490EPA+ 8-pin pdip 핀 구성 가이드
MAX3490EPA+(8-pin pdip 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: MAX3490EPA+.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
MAX3490EPA+ 적합 용도: 6 애플리케이션s: Industrial Automation Bus Interface, Building and HVAC Control Networks, Instrumentation and Sensor Hub, Data Acquisition Equipment, Communication Port Isolation and Protection, Embedded Control Module.
Industrial Automation Bus Interface
The MAX3490EPA+ fits industrial automation links that need a low-power differential transceiver for communicating between a controller and remote equipment. Its verified 3V-to-3.6V supply range suits 3.3V digital systems, while the 10Mbps rating provides margin for high-speed control traffic. The one-driver/one-receiver arrangement supports a full-duplex bus architecture when the wiring and termination are designed according to the datasheet. Slew-rate limiting can help reduce edge-rate-induced EMI, although cable length, topology, grounding, and protection still determine real-world reliability.
추천
Building and HVAC Control Networks
MAX3490EPA+ is suitable for controller nodes in building-control and HVAC equipment where a compact transceiver converts low-voltage digital signals to and from an RS-485 or RS-422 differential link. The 3.3V supply matches many embedded controllers, and the verified 10Mbps capability allows communication rates above common low-speed field-bus rates. Its slew-rate-limited driver helps manage signal transitions, but installers still need correct polarity, common-mode compatibility, cable termination, and surge protection for building wiring environments.
추천
Instrumentation and Sensor Hub
The MAX3490EPA+ can connect an embedded instrument or sensor hub to a longer-distance differential communications segment. One transmitter and one receiver provide a practical point-to-point full-duplex arrangement, while the 3V-to-3.6V operating range aligns with 3.3V logic. The 10Mbps rating is useful when the system combines sensor data, configuration commands, and status updates on one interface. Designers should verify receiver thresholds, common-mode limits, cable length, and input protection because those parameters were not included in the verified search data.
추천
Data Acquisition Equipment
Use MAX3490EPA+ as the physical-layer interface between a data-acquisition controller and remote measurement equipment. The verified 1/1 full-duplex transceiver structure supports simultaneous command transmission and data reception when both sides implement compatible wiring. Its 10Mbps capability can accommodate burst-oriented transfer, while the 3.3V supply simplifies connection to modern embedded logic. In practice, cable characteristic impedance, termination, grounding, and isolation requirements must be evaluated for the acquisition installation.
추천
Communication Port Isolation and Protection
MAX3490EPA+ can serve as the transceiver portion of a communication port when the board includes external protection and, where required, isolation. The verified driver short-circuit current limiting and thermal shutdown protection improve resilience to bus faults, but they are not substitutes for surge suppressors, resistors, fuses, or isolation devices. The 10Mbps interface should be routed as a controlled differential pair, with protection components selected to preserve signal integrity and to meet the required common-mode and surge limits.
추천
Embedded Control Module
The MAX3490EPA+ is appropriate for an embedded control module that needs a compact 3.3V interface to a field bus. The PDIP package is straightforward for through-hole assembly and manual inspection, while the 3V-to-3.6V range supports common embedded rails. Its one-driver/one-receiver arrangement can connect a local processor or programmable controller to a differential network. Before release, validate logic thresholds, timing margins, startup behavior, bus biasing, and thermal performance against the complete MAX3490 datasheet.
추천
추천 제품 요약
엔지니어링 참조 데이터: MAX3490EPA+ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | MAX3490CPA+ | MAX3490EPA | MAX3490EESA |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP | SOIC-8 |
| Interface | RS-485/RS-422 | RS-485/RS-422 | RS-485/RS-422 | RS-485/RS-422 |
| Mounting Type | Through hole | Through hole | Through hole | SMD/SMT |
주요 차별점
- 10Mbps differential communication capability (vs MAX3490CPA+)
- Through-hole 8-pin PDIP implementation (vs MAX3490EESA)
- Integrated driver fault protection (vs MAX3490CPA+)
설계 노트
Use the verified 8-pin PDIP footprint and follow the MAX3490 datasheet for exact pin names and numbering. Place the transceiver close to the connector or cable entry point so the differential pair is short and symmetric. Keep supply bypass components close to VCC and GND, and route the bus as a controlled differential pair when the operating data rate and cable require it.
At the verified maximum data rate of 10Mbps, cable loss, impedance discontinuities, reflections, and connector parasitics can materially affect reliability. Select termination according to the cable topology and transmitter/receiver arrangement documented by the manufacturer. Validate edge rates, common-mode behavior, and receiver thresholds with the complete system rather than relying only on nominal data-rate ratings.
Do not treat short-circuit limiting and thermal shutdown as complete bus protection. Add appropriately rated surge protection, fault current control, grounding, and any required isolation for externally accessible cables. Also avoid substituting a SOIC-8 part on a PDIP footprint without a PCB redesign; the verified comparison data identifies MAX3490EESA as SMD/SMT.
규정 준수 정보
The verified search results do not provide authoritative compliance declarations. Check the current Analog Devices product documentation and supplier declarations before production release.