ADM3202AN - 3.3V Dual RS-232 Transceiver | Analog Devices
MPN: ADM3202AN ✗ انتهى عمره الإنتاجيADM3202AN نظرة عامة
An RS-232 transceiver is an interface IC that translates between single-ended logic-level signals and the bipolar, single-ended signaling used by RS-232 equipment. Within the interface hierarchy, the ADM3202AN belongs to the RS-232 transceiver family of communication interface ICs. Its 3.3 V operation is useful for portable, battery-powered, industrial, and embedded systems where a higher-voltage RS-232 supply would increase power consumption or complicate system design.
Key features include operation from one 3.3 V supply, support for data rates up to 230 kbps, compliance with the EIA-232E and CCITT V.28 specifications, and four external 0.1 µF charge-pump capacitors. The Analog Devices family also offers PDIP, SOIC, SSOP, and TSSOP package options. These characteristics make the ADM3202AN suitable for industrial data links, point-of-sale equipment, instrumentation, and other systems that need bidirectional serial communication over RS-232.
The internal charge-pump and voltage-doubler circuitry lets the device operate without a separate negative supply. Designers must nevertheless preserve the required capacitor connections and provide suitable bypass capacitance close to the supply pins. Because an RS-232 receiver commonly includes hysteresis and threshold behavior, signal integrity depends on correct grounding, cable routing, and protection practices at the connector rather than on high-speed digital routing techniques.
The ADM3202AN is appropriate for legacy serial-console connections, test and measurement control interfaces, payment terminals, industrial control panels, and communication links between a 3.3 V embedded controller and an RS-232 peripheral. The 16-pin PDIP package is also useful for prototypes, through-hole industrial products, and designs that favor inspection or socket assembly rather than a surface-mount layout.
A critical design consideration is the availability of the obsolete ADM3202AN. The exact listed unit price is $1.75 as of 2026-10-28, but lifecycle status and sourcing should be confirmed before committing a new production design. Engineers should also verify charge-pump capacitor voltage ratings, provide adequate supply decoupling, and protect externally accessible RS-232 lines against electrostatic discharge.
This page consolidates the verified manufacturer specifications, distributor pricing, package information, and available drop-in references for ADM3202AN. It also highlights the lifecycle risk, practical charge-pump requirements, and the exact application conditions under which each substitute should be selected.
بدائل مباشرة لـ ADM3202AN — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ADM3202AN (نفس عامل الشكل والبصمة) — يختلف في Device Type, Interface Standard, Maximum Data Rate, Mounting Type, Number of Drivers.
ADM3202ANZ
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
MAX3222CPE
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
MAX3232CPE+
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←LTC1385CN
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ADM3202AN المواصفات
| Device Type | 2/2 full RS-232 transceiver |
| Number of Drivers | 2 channels |
| Number of Receivers | 2 channels |
| جهد التغذية | 3.3 V |
| Maximum Data Rate | 230 kbps |
| Interface Standard | EIA-232E and CCITT V.28 |
| Charge-Pump Capacitors | 4 external capacitors at 0.1 µF |
| Supply Configuration | Single positive 3.3 V supply |
| ESD Protection Standard | IEC 1000-4-2 contact discharge of 8 kV |
| العلبة | 16-pin PDIP |
| نوع التركيب | Through-hole |
| Shutdown Function | Not specified for ADM3202; available in ADM3222 and ADM1385 |
دليل تكوين أطراف ADM3202AN 16-pin pdip
تكوين الأطراف لـ ADM3202AN (حزمة 16-pin pdip). يتم تعريف ترقيم الأطراف والوظائف ومخططات التوصيل في ورقة البيانات الفنية من الشركة المصنعة. راجعها للحصول على البصمة الدقيقة وإرشادات اللحام.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ ADM3202AN.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
ADM3202AN مناسب لـ 6 التطبيقs: Embedded RS-232 Serial Console, Point-of-Sale Terminal Interface, Industrial Control Panel, Test and Measurement Controller, Portable RS-232 Data Logger, Legacy Serial Equipment Retrofit.
Embedded RS-232 Serial Console
The ADM3202AN fits a 3.3 V embedded controller that must communicate with a legacy RS-232 console or service port. Its single 3.3 V supply operation avoids requiring the system to generate a separate negative rail for the transceiver, while its two transmitters and two receivers support bidirectional links. The verified 230 kbps capability is suitable for serial-console traffic and many control protocols, although the external 0.1 µF charge-pump capacitors and suitable bypass capacitors must be placed close to the device. Because the ADM3202AN is obsolete, an existing production repair may justify its documented $1.75 unit price as of 2026-10-28, but a new embedded platform should evaluate a currently supported equivalent.
موصى به
Point-of-Sale Terminal Interface
The ADM3202AN can support a point-of-sale peripheral that uses an RS-232 connection to a receipt printer, customer display, scanner, or controller. A single 3.3 V supply simplifies integration with a low-voltage embedded system, and the two-channel architecture allows one driver and one receiver to form a bidirectional link. Its verified EIA-232E and CCITT V.28 conformance provides a defined basis for interoperability, while the 230 kbps rate exceeds the needs of many peripheral control protocols. Designers should place the four 0.1 µF charge-pump capacitors according to the manufacturer layout and protect the external cable pins with suitable ESD protection.
موصى به
Industrial Control Panel
The ADM3202AN is suitable for an industrial control panel that must connect a 3.3 V controller to a remote serial interface, programming fixture, or service terminal. Its two drivers and two receivers provide flexibility for either full-duplex communication or separate command and status links. The through-hole 16-pin PDIP package is particularly practical for rugged assemblies built for manual repair, socketed prototyping, or production insertion. Performance depends on correct bypassing, short ground references, and protection at the connector because external RS-232 cables can introduce large transients. The obsolete lifecycle status requires careful change control for new industrial programs.
موصى به
Test and Measurement Controller
The ADM3202AN can bridge a 3.3 V controller to RS-232-controlled test equipment, laboratory instruments, or calibration fixtures. The verified 230 kbps rate is suitable for many command and response protocols, while dual transmit and receive channels permit two-way control without another interface IC. Operating from a single 3.3 V rail reduces the number of regulated supplies required near the controller. The design should verify the exact ADM3202AN pinout and charge-pump capacitor arrangement in the manufacturer datasheet, use a solid ground plane, and include ESD protection on user-accessible connector pins.
موصى به
Portable RS-232 Data Logger
The ADM3202AN is appropriate for a portable data logger that records equipment status through an RS-232 link while operating from a compact 3.3 V system. Its single-supply operation supports low-voltage portable designs, and the 16-pin PDIP package permits a straightforward through-hole implementation for prototypes or repairable industrial equipment. The device can use one receiver for incoming records and one driver for commands or acknowledgements. Power-system designers must account for charge-pump current and regulator headroom, while cable-connected users require robust ESD protection. Current availability should be verified because the verified lifecycle source identifies this MPN as obsolete.
موصى به
Legacy Serial Equipment Retrofit
The ADM3202AN is useful when modernizing or repairing equipment that retains an RS-232 port but needs a 3.3 V logic interface. It can replace a higher-voltage transceiver arrangement when the board already follows the ADM3202AN pinout and the required 230 kbps data rate is sufficient. The family’s EIA-232E and CCITT V.28 support provides a defined basis for legacy interoperability. However, a retrofit should not rely on the name MAX3222 or MAX3232 alone as proof of compatibility: verify every charge-pump, supply, receiver, and driver connection before substituting another manufacturer’s part.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ADM3202AN — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ADM3202ANZ | MAX3222CPE | MAX3232CPE | LTC1385CN |
|---|---|---|---|---|---|
| Package | PDIP-16 | PDIP-16 | PDIP-16 | PDIP-16 | PDIP-16 |
| Brand | Analog Devices | Analog Devices | Maxim Integrated | Maxim Integrated | Analog Devices |
أبرز الفروقات
- Single 3.3 V RS-232 interface (مقابلMAX3232CPE)
- Documented high-speed operation (مقابلMAX3222CPE)
- Through-hole serviceability (مقابلLTC1385CN)
- Two-channel transceiver integration (مقابلMAX3222CPE)
ملاحظات التصميم
Use only the 3.3 V supply specified by the manufacturer and place the required bypass capacitor close to the supply pin. The ADM3202AN generates bipolar RS-232 levels with external charge-pump capacitors, so capacitor placement and stability affect both interface voltage and EMC performance. Confirm the exact pin names and capacitor polarity in the manufacturer datasheet before layout. Do not substitute a MAX232-family pinout solely because the connector standards are similar.
Route the four 0.1 µF charge-pump capacitors as a compact group close to their associated ADM3202AN pins, with short ground returns and minimal loop area. Keep the RS-232 driver outputs away from sensitive receiver inputs and analog circuitry. Through-hole package leads make prototype substitution possible, but production designs should still reserve the exact PDIP-16 footprint and verify lead spacing against the package drawing.
The ADM3202AN is identified as obsolete, so availability can change without a new design being issued. Do not treat a distributor search result as a guaranteed allocation, and verify date code, lot traceability, and authorized-channel status. Before fitting MAX3222CPE, MAX3232CPE, or LTC1385CN, compare the complete pin list, charge-pump network, supply limits, driver levels, receiver thresholds, data rate, and shutdown behavior rather than relying on the shared PDIP-16 outline.
RS-232 is a relatively slow, single-ended interface, but cable transients and charge-pump switching can still create emissions or coupling on a dense board. Use a continuous ground plane, short return paths, controlled connector routing, and suitable external ESD protection on user-accessible lines. Verify emissions with the final cable and enclosure configuration because connector shield termination and cable geometry can materially affect system-level EMI performance.
معلومات الامتثال
The verified sources identify IEC 1000-4-2 ESD protection but do not provide verified RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. AEC-Q100 is not applicable because the ADM3202AN is an industrial/communications interface IC rather than an automotive-qualified device.