MAX3490CPA+ - 3.3V 10Mbps RS-485/RS-422 Transceiver
Référence : MAX3490CPA+ ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.9901 | $6,99 |
| 10 | $6.9901 | $69,90 |
| 100 | $6.9901 | $699,01 |
| 500 | $6.9901 | $3 495,05 |
| 1 000 | $6.9901 | $6 990,10 |
MAX3490CPA+ Présentation
An RS-485/RS-422 transceiver is an interface IC that converts logic-level transmit and receive signals into balanced differential bus signals and back again. Differential signaling improves common-mode noise immunity and allows reliable communication over cables where single-ended logic signals would be more susceptible to interference. The MAX3490CPA+ belongs to the transceiver hierarchy: interface transceiver, RS-485/RS-422 interface, wired-communication semiconductor, and signal-conditioning component.
The MAX3490 family includes one driver and one receiver, allowing a node to both transmit and receive data. Its 3.3V operation supports systems powered from modern low-voltage rails, while slew-rate limiting reduces unwanted transmit-edge energy and helps control electromagnetic emissions. The device is also described as a true RS-485/RS-422 interface solution, making it suitable for industrial controls, instrumentation links, and communications equipment.
The MAX3490CPA+ is a through-hole PDIP-8 device, which is useful when a design needs socketed assembly, prototype flexibility, or a leaded package rather than a surface-mount footprint. The verified distributor listings identify the package as 8-PDIP or DIP-8, with a 0.300-inch, 7.62mm body. The exact pin assignments, electrical limits, temperature range, termination requirements, and recommended operating conditions should be confirmed in the manufacturer datasheet before layout or production release.
Typical applications include industrial RS-485 buses, data acquisition systems, remote sensor interfaces, RS-422 point-to-point links, embedded control networks, and communications equipment operating from a 3.3V rail. In a practical bus, the transceiver connects a controller UART to a twisted-pair network, while external termination and biasing may be required according to the bus topology and system requirements. Keep the differential trace pair short, matched, and away from noisy switching paths.
This product page consolidates verified distributor and manufacturer information, current sourcing links, and design context for the MAX3490CPA+. Pricing, availability, lifecycle details, and detailed electrical parameters should be refreshed at the source before purchase because distributor data changes over time.
Alternatives de remplacement direct pour MAX3490CPA+ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MAX3490CPA+ (même facteur de forme et même empreinte) — différant par Mounting Type, Package, Product Type, Driver Protection, Supply Voltage.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MAX3485ESA+
✅ Remplacement direct✓ En stock
$1.45 / unité
Voir la fiche technique →MAX3490
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MAX3491
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MAX3490EPA
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MAX3490EEPA
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MAX3490CPA+ Spécifications
| Product Type | RS-485/RS-422 transceiver |
| Tension d'alimentation | 3.3 V nominal |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Maximum Data Rate | 10 Mbps |
| Driver Count | 1 |
| Receiver Count | 1 |
| Interface Standards | RS-422 and RS-485 |
| Driver Output Type | True differential driver |
| Slew Rate | Slew-rate limited |
| Boîtier | 8-PDIP / DIP-8 |
| Package Body Width | 7.62 mm (0.300 inch) |
| Type de montage | Through-hole |
| Driver Protection | Short-circuit current limiting and thermal shutdown |
| Receiver Fail-Safe | Fail-safe receiver feature |
Guide de configuration des broches du MAX3490CPA+ 7.62 mm (0.300 inch)
Configuration des broches du MAX3490CPA+ (boîtier 7.62 mm (0.300 inch)). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour MAX3490CPA+.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MAX3490CPA+ convient pour 8 applications: Industrial RS-485 Control Bus, Data Acquisition Instrumentation, Embedded Serial Communications, Remote Sensor Interface, RS-422 Point-to-Point Link, Factory Automation Equipment, Test and Measurement Systems, Communication Gateway.
Industrial RS-485 Control Bus
The MAX3490CPA+ fits a 3.3V industrial controller that must communicate with remote drives, sensors, or I/O modules over a balanced bus. Its one-driver/one-receiver arrangement supports bidirectional node communication, while the verified 10Mbps capability gives designers substantial data-rate headroom. The slew-rate-limited driver helps reduce high-frequency edge energy, making the part useful where cable length, topology, and emissions must be balanced. The 8-PDIP package also supports prototype and through-hole assembly, although termination, fail-safe biasing, and grounding still depend on the final network.
Recommandé
Data Acquisition Instrumentation
Use the MAX3490CPA+ as the physical-layer interface between a measurement controller and remote acquisition modules when the system uses a 3.3V rail. The differential RS-485/RS-422 signaling path is appropriate for cabling between circuit boards or instrument chassis, while the 10Mbps verified maximum supports high-speed command and response traffic. The device reduces the need for discrete driver and receiver circuitry, but designers should still verify cable length, baud rate, termination, and common-mode limits against the complete datasheet.
Recommandé
Embedded Serial Communications
The MAX3490CPA+ is suitable for embedded systems that expose a UART to a longer-distance RS-485 or RS-422 network. Its 3.3V nominal supply matches common microcontroller and digital-logic rails, and the integrated driver and receiver simplify firmware-side communication while keeping the physical interface separate from the application controller. At rates up to 10Mbps, it can support high-throughput command, status, and telemetry links, but the actual baud rate should be selected with margin for cable loss, node loading, termination, and electromagnetic compatibility testing.
Recommandé
Remote Sensor Interface
Place the MAX3490CPA+ between a central controller and a remote sensor node when the sensor installation is farther from the electronics than a conventional UART connection allows. Balanced differential signaling helps reject common-mode disturbance, while the transceiver's 1/1 arrangement permits command transmission and sensor-response reception over the same interface. The verified 3.3V supply and 8-PDIP package make it straightforward to use in a small through-hole interface board, provided that the cable route is properly terminated and protected from surge conditions.
Recommandé
RS-422 Point-to-Point Link
The MAX3490CPA+ can serve as the interface for a point-to-point RS-422 connection between two equipment chassis or circuit cards. The balanced driver and receiver provide a compact alternative to discrete line-driver circuitry, and the verified 10Mbps capability supports fast serial data transfer. The 3.3V operating supply is useful for modern control boards, while the leaded 8-PDIP package simplifies socketed prototypes and repair assemblies. Confirm receiver thresholds, enable controls, and exact pin assignments in the manufacturer documentation before finalizing the PCB.
Recommandé
Factory Automation Equipment
The MAX3490CPA+ can connect a controller board to remote automation equipment over a 3.3V-powered RS-485 network. The transceiver's verified 10Mbps capability provides useful speed margin for telemetry and configuration traffic, while the slew-rate-limited driver helps manage bus-edge behavior. A factory installation should still include correctly placed termination resistors, suitable grounding, surge protection appropriate to the environment, and a cable strategy validated for the actual node count and distance.
Recommandé
Test and Measurement Systems
The MAX3490CPA+ can be used in test and measurement equipment to distribute commands and retrieve results between a controller and a remote instrument interface. The 3.3V supply fits modern mixed-signal equipment, while the differential RS-485/RS-422 path is useful for connecting instruments over a cable. The 10Mbps rating is adequate for many control and status channels, but high-speed designs should consider cable impedance, connector return paths, termination, and the receiver's fail-safe behavior before release.
Recommandé
Communication Gateway
The MAX3490CPA+ can serve as the wired industrial-side interface in a gateway that translates between a local UART or processor and an external RS-485 or RS-422 system. Its 3.3V operation helps simplify shared power design, and the one-driver/one-receiver structure supports bidirectional protocols. The 8-PDIP package is useful for a prototype gateway or service module, but production designs should verify pinout, logic polarity, thermal conditions, and exact transceiver ratings against the Analog Devices datasheet before treating the part as a confirmed replacement.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MAX3490CPA+ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MAX3485 | MAX3490 | MAX3491 | MAX3490EPA | MAX3490EEPA |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 8-PDIP / DIP-8 | 8-PDIP / DIP-8 - verify exact suffix | 8-PDIP / DIP-8 - verify exact suffix | 8-PDIP / DIP-8 - verify exact suffix | 8-PDIP / DIP-8 - family comparison candidate | 8-PDIP / DIP-8 - family comparison candidate |
| Product Type | RS-485/RS-422 transceiver | RS-485/RS-422 transceiver family candidate | RS-485/RS-422 transceiver | RS-485/RS-422 transceiver family candidate | MAX3490 family comparison candidate | MAX3490 family comparison candidate |
Principaux différenciateurs
- Verified 10Mbps communication capability (vs MAX3485)
- Explicit 3.3V low-voltage operation (vs MAX3491)
- Through-hole 8-PDIP implementation (vs MAX3490EPA)
Notes de conception
Do not treat a similar MAX3490-family listing as a drop-in substitute without comparing the exact orderable suffix. The verified data confirms the target is a 3.3V, 10Mbps, 1-driver/1-receiver interface in an 8-PDIP package, but the supplied snippets do not provide complete pin tables or all electrical limits. Compare pin names, enable polarity, receiver fail-safe behavior, supply limits, and package dimensions before replacing MAX3490CPA+.
Route the two bus conductors as a closely matched differential pair and keep the pair away from switching nodes and high-current return paths. For an 8-PDIP implementation, place the transceiver close to the connector and any external termination or protection components. The verified web results do not specify a reference PCB layout, so the final placement and return-path strategy should be validated with the manufacturer guidance and signal-integrity measurements.
The target operates from a 3.3V nominal supply in the verified 3.0V to 3.6V range, so the system regulator and nearby bypassing must support the transceiver without excessive noise or supply droop. Confirm the exact supply-current limits, absolute maximum ratings, and decoupling recommendations in the manufacturer datasheet. Do not infer those missing values from the distributor headline specifications.
Informations de conformité
The supplied verified results do not state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification status. AEC-Q100 is marked not_applicable only because this product listing is not identified as an automotive-qualified variant; it should not be interpreted as a formal manufacturer qualification statement.
