Alternatives to Analog Devices MAX3491ESD
Analog Devices MAX3491ESD and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 MAX3491ESDAnalog Devices | MAX3491ESD+Analog Devices Inc./Maxim Integrated | MAX3491EESD+Analog Devices Inc./Maxim Integrated | +4more | |
|---|---|---|---|---|
| FFF Compatibility | Pin-compatible direct drop-in in 14-pin SOIC package with identical pin configurations.Matches the standard 14-SOIC footprint and dimensions exactly.Identical supply voltage (3.0V to 3.6V), data rate (10 Mbps), and operating temperature range (-40°C to +85°C). | Identical pin assignments and 14-pin SOIC package.Identical 14-SOIC physical dimensions.Operates at the same 3.0V to 3.6V supply range and 10 Mbps speed, but adds enhanced ESD protection on transceiver bus pins. | ||
 AI Summary | MAX3491ESD by Analog Devices: 1/1 Transceiver Full RS422, RS485 14-SOIC. | This is the direct lead-free (RoHS-compliant) equivalent of the obsolete MAX3491ESD, using the same silicon and datasheet. It offers a seamless transition with zero redesign.
| This sibling device is the enhanced ESD-protected version of the MAX3491, offering direct drop-in compatibility while improving system-level transient robustness.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | 1/1 Transceiver Full RS422, RS485 14-SOIC | 1/1 Transceiver Full RS422, RS485 14-SOIC | 1/1 Transceiver Full RS422, RS485 14-SOIC | |
| Manufacturer | Analog Devices | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | |
| Type | Interface | Interface | Interface | |
| Datasheet | Open | Open | Open | |
| Lead Time | 16 weeks | 11 weeks | 11 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Type | Transceiver | - | - | |
| Duplex | Full | - | - | |
| Protocol | RS422, RS485 | - | - | |
| Data Rate | 10Mbps | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | - | - | |
| Voltage - Supply | 3V ~ 3.6V | - | - | |
| Receiver Hysteresis | 50 mV | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 MAX3490EESAAnalog Devices | Non-stock | Obsolete | 5Alternatives availableSee Alternatives |
| MAX961ESAAnalog Devices | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 MAX3096ESEAnalog Devices | In stock | Obsolete | 5Alternatives availableSee Alternatives |
| MAX4509ESE+Analog Devices | In stock | Active | 5Alternatives availableSee Alternatives |
 MAX3221CAEAnalog Devices | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 MAX4234AUDAnalog Devices | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Analog Devices MAX3491ESD is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the Analog Devices MAX3491ESD are the MAX3491ESD+ (Analog Devices Inc./Maxim Integrated) and the MAX3491EESD+ (Analog Devices Inc./Maxim Integrated), out of 6 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the MAX3491ESD are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The MAX3491ESD (Analog Devices) is a part in the Interface category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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