MAX211EEAI+ 4/5 RS-232 Transceiver | Analog Devices
MPN: MAX211EEAI+ ✓ AktifMAX211EEAI+ Genel Bakış
An RS-232 transceiver is an interface IC that converts between single-ended TTL or CMOS logic levels and differential, bipolar RS-232 signals. In the broader semiconductor hierarchy, the MAX211EEAI+ belongs to the interface IC family, combining line drivers, line receivers, and charge-pump voltage generation in one device. This integration allows a host controller or UART to connect to a cable-based RS-232 port without external level-shifting transistors or a separate negative supply rail.
The device includes four TTL-compatible transmitters and five receivers. The transmitters produce the ±5 V output levels required by EIA/TIA-232E, while the receivers convert incoming RS-232 signals into logic-compatible levels. Its integrated charge-pump circuitry generates the positive and negative voltages required by the RS-232 drivers from one +5 V supply. The MAX211EEAI+ also supports data rates above 120 kbps when operated in accordance with the EIA/TIA-232E loading requirements.
A major feature of the MAX211EEAI+ is its ±15 kV human-body-model ESD protection, which improves interface robustness in environments where cables may be connected or disconnected. The receive and transmit sections provide practical channel counts for systems requiring several serial links, status inputs, control signals, or bidirectional communication through one RS-232 connector. Its 28-pin SSOP package offers a compact surface-mount footprint compared with the larger 28-pin wide SO option also offered in the MAX211 family.
Typical uses include industrial equipment interfaces, data-acquisition systems, instrumentation, service consoles, embedded serial adapters, and legacy peripheral connectivity. The device is especially useful when an embedded controller must communicate through a multi-channel RS-232 interface while maintaining a single +5 V power architecture. Because it is a bipolar RS-232 interface rather than a modern differential bus transceiver, it is best suited to point-to-point cable links and compatible equipment rather than long-distance, high-noise industrial Ethernet-style networks.
Designers should provide the charge-pump capacitors specified by the manufacturer, connect unused inputs to defined logic levels, and treat the ESD-protected RS-232 pins as external connector pins. Keep the interface ground reference connected with the signal cable, route the interface connector and cable away from sensitive analog signals, and validate the complete board under the grounding conditions of the target system.
This page combines the manufacturer specifications, package details, application guidance, comparison information, and verified drop-in candidates for engineers evaluating the MAX211EEAI+. It also highlights practical distinctions among confirmed SSOP-28 alternatives so PCB reuse can be assessed without confusing a package-compatible device with an electrically equivalent but differently pinned part.
Drop-in alternatifler için MAX211EEAI+ — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
Bu Serideki Variantlar
Yedek parça uyumlu olan aynı serideki modeller MAX211EEAI+ (aynı form faktörü ve ayağa oturma) — farklı olan Product Type, Package, Maximum Data Rate, RoHS Status, Supply Voltage.
MAX211EAI+
✅ YerleştirmeFiyat için iletişime geçin
Veri Şablonunu Görüntüle →MAX211IDB
✅ YerleştirmeFiyat için iletişime geçin
Veri Şablonunu Görüntüle →MAX211ECAI+
✅ YerleştirmeFiyat için iletişime geçin
Veri Şablonunu Görüntüle →MAX211EEAI+ Özellikler
| Product Type | RS-232 and V.28 transceiver |
| Driver Count | 4 drivers |
| Receiver Count | 5 receivers |
| Besleme Gerilimi | 4.5 V to 5.5 V |
| Maximum Data Rate | Greater than 120 kbps |
| RS-232 Output Signal Level | ±5 V |
| Standard Compatibility | EIA/TIA-232E and CCITT V.28 |
| ESD Protection | ±15 kV HBM |
| Charge Pump | Integrated, single +5 V operation |
| Logic Output State | TTL tri-state |
| Paket | 28-pin SSOP |
| Montaj Türü | Surface mount |
MAX211EEAI+ 28-pin ssop Pin Yapısı Kılavuzu
MAX211EEAI+ (28-pin ssop paket) için pin yapısı. Pin numaralandırma, işlevleri ve bağlantı şemaları üretici veri kitapçığında tanımlanmıştır. Doğru ayak ve soldurma kılavuzları için onu referans alın.
Ayrıntılı pin çıkış verisi mevcut değil: MAX211EEAI+.
Aşağıdaki veri sayfası tam pin konfigürasyonu için.
Tipik Uygulamalar
MAX211EEAI+ için uygundur 6 uygulamas: Industrial Equipment Interfaces, Data Acquisition Systems, Point-to-Point Serial Links, Service and Diagnostic Consoles, Embedded Serial Adapters, Instrumentation and Test Equipment.
Industrial Equipment Interfaces
The MAX211EEAI+ is appropriate for legacy industrial equipment that uses RS-232 for configuration, monitoring, or service communication. Four TTL-compatible drivers and five receivers provide several channels for data and control signals within one 28-pin SSOP. According to the Analog Devices MAX211 manufacturer datasheet, the integrated charge pump supports operation from a single +5 V supply at data rates above 120 kbps, while ±15 kV HBM protection strengthens the connector-facing interface. Designers should place the device near the protected connector entry, route RS-232 traces away from sensitive analog circuitry, and verify the equipment's EIA/TIA-232E grounding and cable-routing requirements.
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Data Acquisition Systems
The MAX211EEAI+ can connect a controller or acquisition instrument to external RS-232 equipment when multiple command and response channels are required. The five receivers support incoming data and status signals, while the four drivers support outgoing commands and controls. Its 4.5 V to 5.5 V operating range integrates naturally with a +5 V data-acquisition board, and the integrated charge pump avoids a separate negative supply rail. The Analog Devices MAX211 manufacturer datasheet identifies operation above 120 kbps under specified EIA/TIA-232E loading. Use shielded cable, a common signal-ground reference, and careful separation between the RS-232 connector and high-impedance measurement inputs.
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Point-to-Point Serial Links
The MAX211EEAI+ is suited to point-to-point serial connections between a host controller and a legacy peripheral that uses EIA/TIA-232E or V.28 signaling. It provides four driver channels and five receiver channels, enabling bidirectional data alongside hardware-control signals. According to the Analog Devices MAX211 manufacturer datasheet, the transmitters maintain ±5 V output levels and support data rates in excess of 120 kbps when loaded in accordance with the applicable specification. The single +5 V supply architecture simplifies system power design, although RS-232 remains a point-to-point interface and should not be treated as a multi-drop bus.
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Service and Diagnostic Consoles
The MAX211EEAI+ can provide the RS-232 interface in service consoles, diagnostic fixtures, and field-programming equipment. Multiple receivers make it possible to monitor ready, fault, or status signals while transmitters carry commands or firmware data. Its ±15 kV HBM ESD rating is particularly relevant to connectorized service equipment, where exposed cables can be attached during maintenance. The Analog Devices MAX211 manufacturer datasheet confirms that the MAX211 family operates from one +5 V supply through an integrated charge pump. For reliable service connections, use a properly wired connector, retain the interface ground, minimize exposed cable sections, and perform system-level ESD validation under the intended operating environment.
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Embedded Serial Adapters
The MAX211EEAI+ fits compact embedded serial adapters that expose a legacy RS-232 port through a modern controller or module. Its four transmitters and five receivers support multiple handshake and status functions without requiring a collection of discrete line drivers and receivers. The 28-pin SSOP package conserves board area compared with the 28-pin wide SO option in the same family. According to the Analog Devices MAX211 manufacturer datasheet, the integrated charge-pump circuit enables single +5 V operation at rates above 120 kbps. Designers should follow the prescribed charge-pump capacitor arrangement, connect unused logic inputs to defined states, and isolate the RS-232 cable route from clocks, sensors, and radio-frequency sections.
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Instrumentation and Test Equipment
The MAX211EEAI+ is useful in instrumentation and test equipment that retains a multi-channel RS-232 control interface. The five receivers can collect measurement-status or interlock signals, and the four drivers can send commands to remote fixtures. Because the device meets the EIA/TIA-232E and CCITT V.28 interface requirements described in the Analog Devices MAX211 manufacturer datasheet, it supports legacy equipment interoperability. Its ±15 kV HBM protection improves the cable interface, and its over-120-kbps capability suits high-speed status transfer. Bench systems should still account for ground-loop potential differences between connected instruments and use appropriate isolation or common-grounding methods where required.
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Önerilen Ürünler Özeti
Mühendislik referans verileri: MAX211EEAI+ — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Alternatiflerle Karşılaştırma
| Parametre | Bu Ürün | MAX211EAI | MAX211IDB | MAX211ECAI+ |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | SSOP-28 | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same |
| Driver Count | 4 drivers | 4 drivers | 4 drivers | 4 drivers |
| Receiver Count | 5 receivers | 5 receivers | 5 receivers | 5 receivers |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Maximum Data Rate | Greater than 120 kbps | Greater than 120 kbps | Greater than 120 kbps | Greater than 120 kbps |
| ESD Protection | ±15 kV HBM | ±15 kV HBM | ±15 kV HBM | ±15 kV HBM |
| Charge Pump | Integrated for single +5 V operation | Integrated for single +5 V operation | Integrated for single +5 V operation | Integrated for single +5 V operation |
| RS-232 Output Level | ±5 V | ±5 V | ±5 V | ±5 V |
Ana Farklılayıcılar
- Four transmitters and five receivers in one compact interface (karşılaştırma:MAX211EAI)
- Single +5 V operation with integrated charge pump (karşılaştırma:MAX211IDB)
- Connector-side electrostatic-discharge protection (karşılaştırma:MAX211ECAI+)
Tasarım Notları
Follow the Analog Devices MAX211 manufacturer datasheet charge-pump capacitor connection and placement exactly. Place the specified capacitors adjacent to their associated pins, minimize loop area, and route the protected RS-232 connector-side nets away from sensitive analog and digital timing paths. The MAX211EEAI+ uses an SSOP-28 land pattern, so verify pad dimensions, solder-mask clearance, and paste volume against the chosen PCB library rather than relying on a generic SSOP footprint.
Use the interface ground as the return path for every RS-232 signal and connect it to the equipment chassis or system ground according to the product architecture. The MAX211 family supports data rates above 120 kbps under specified EIA/TIA-232E loading, but cable length, capacitance, and grounding can alter practical performance. Keep the cable route away from switching nodes, inductors, motors, and antenna systems, and validate command integrity with the longest intended cable and loading condition.
Do not treat the four driver outputs and five receiver inputs as interchangeable. Connect only the intended RS-232 channels to the connector, drive every receiver input from a valid signal or defined state, and account for the TTL tri-state behavior before enabling a transmitter. Also do not apply external RS-232 voltages to non-interface pins. Because the MAX211EEAI+ includes ±15 kV HBM ESD protection, it still requires correct connector placement, cable handling, and system grounding for dependable operation.
Uyumluluk Bilgisi
The MAX211EEAI+ ordering code includes the + lead-free suffix. No explicit RoHS, REACH, halogen-free, conflict-minerals, or automotive qualification statement appears in the technical records; therefore those statuses remain unknown.