MAX491ECPD+
RS-422/RS-485 Interface IC 15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers





Brands: Analog Devices Inc./Maxim Integrated
Mfr.Part #: MAX491ECPD+
Datasheet: MAX491ECPD+ Datasheet (PDF)
Package/Case: 14-DIP
RoHS Status:
Stock Condition: 7,380 pcs, New Original
Product Type: Drivers, Receivers, Transceivers
Warranty: 1 Year Ovaga Warranty - Find Out More
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*All prices are in USD
Qty | Unit Price | Ext Price |
---|---|---|
1 | $3.880 | $3.880 |
200 | $1.502 | $300.400 |
500 | $1.449 | $724.500 |
1000 | $1.423 | $1423.000 |
In Stock 7,380 PCS
MAX491ECPD+ General Description
The MAX481E, MAX483E, MAX485E, MAX487E-MAX491E, and MAX1487E are low-power transceivers forRS-485 and RS-422 communications in harsh environments.Each driver output and receiver input is protectedagainst ±15kV electro-static discharge (ESD) shocks,without latchup. These parts contain one driver and onereceiver. The MAX483E, MAX487E, MAX488E, andMAX489E feature reduced slew-rate drivers that minimizeEMI and reduce reflections caused by improperly terminatedcables, thus allowing error-free data transmissionup to 250kbps. The driver slew rates of the MAX481E,MAX485E, MAX490E, MAX491E, and MAX1487E are notlimited, allowing them to transmit up to 2.5Mbps.
Features
- For Fault-Tolerant Applications:
MAX3430: ±80V Fault-Protected, Fail-Safe, 1/4-Unit Load, +3.3V, RS-485 TransceiverMAX3080-MAX3089: Fail-Safe, High-Speed(10Mbps), Slew-Rate-Limited, RS-485/RS-422Transceivers - For Space-Constrained Applications:
MAX3460-MAX3464: +5V, Fail-Safe, 20Mbps,Profibus, RS-485/RS-422 TransceiversMAX3362: +3.3V, High-Speed, RS-485/RS-422Transceiver in a SOT23 PackageMAX3280E-MAX3284E: ±15kV ESD-Protected,52Mbps, +3V to +5.5V, SOT23, RS-485/RS-422True Fail-Safe ReceiversMAX3030E-MAX3033E: ±15kV ESD-Protected,+3.3V, Quad RS-422 Transmitters - For Multiple Transceiver Applications:
MAX3293/MAX3294/MAX3295: 20Mbps, +3.3V,SOT23, RS-485/RS-422 Transmitters - For Fail-Safe Applications:
MAX3440E-MAX3444E: ±15kV ESD-Protected,±60V Fault-Protected, 10Mbps, Fail-SafeRS-485/J1708 Transceivers - For Low-Voltage Applications:
MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E: +3.3V Powered, ±15kVESD-Protected, 12Mbps, Slew-Rate-Limited,True RS-485/RS-422 Transceivers
Application
- Industrial-Control Local Area Networks
- Level Translators
- Low-Power RS-422 Transceivers
- Low-Power RS-485 Transceivers
- Transceivers for EMI-Sensitive Applications
Specifications
Parameter | Value | Parameter | Value |
---|---|---|---|
Series | MAX491E | Mounting Style | Through Hole |
Function | Transceiver | Number of Drivers | 1 Driver |
Number of Receivers | 1 Receiver | Data Rate | 2.5 Mb/s |
Max Supply Voltage | 5 V | Supply Voltage - Min | 5 V |
Minimum Operating Temperature (°C) | 0 | Maximum Operating Temperature (°C) | + 70 |
Duplex | Full Duplex | ESD Protection | 15 kV |
Height | 4.45 mm (Max) | Input Voltage | 5 V |
Length | 19.43 mm (Max) | Current @ Pmpp | 300 uA |
Collector-Emitter Saturation Voltage | 5 V | MAX Output Current | 35 mA to 250 mA |
Output Voltage | - 8 V to 12.5 V | Pd - Power Dissipation | 800 mW |
Factory Pack Quantity | 25 | Width | 7.87 mm (Max) |
Unit Weight | 0.057144 oz | Base Product Number | MAX491 |
Shipping
Shipping Type | Ship Fee | Lead Time | |
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time:Shipping fee depend on different zone and country.
Payment
Terms of payment | Hand Fee | |
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.5% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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Step1 :Product Inventory
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Step2 :Pressure Relief Packaging
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Step3 :Anti Static Packaging
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Step4 :Protective Packaging
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Step5 :Sealed Packaging
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Step6 :Preparation for shipment
We will inspect and count all goods before shipping to ensure that all products are intact and in accurate quantity, and will fully package them to ensure that they will not be damaged during transportation.
Q: How can I order the MAX491ECPD+?
A: To place an order for the MAX491ECPD+, select the "Add to Cart" button associated with the product listing on our website. Once selected, you can finalize your purchase by proceeding to the checkout page, where you can enter your payment and shipping information.
Q: What is the warranty period for the MAX491ECPD+?
A: We offer a 1-year warranty on the MAX491ECPD+. This warranty covers any defects in materials and artistry under normal use. During the warranty period, if the product is found to be defective, it will be repaired or replaced at no charge. For further details, please refer to our warranty policy.
Q: How does Ovaga ensure the authenticity of MAX491ECPD+ from Analog Devices Inc./Maxim Integrated?
A: Ovaga has a dedicated business development team that rigorously tests and verifies the credentials of original Analog Devices Inc./Maxim Integrated manufacturers and authorized agents. All Analog Devices Inc./Maxim Integrated suppliers must pass a qualification review before they can list their MAX491ECPD+ products on our platform. We emphasize sourcing from reliable channels and maintaining high product quality standards, ensuring you can make your purchase with confidence.
Q: How can I find detailed information about the MAX491ECPD+ chips, such as application notes, factory information, and images?
A: You can utilize Ovaga's intelligent search engine, filter by the Ethernet PHY Products category, or visit the Analog Devices Inc./Maxim Integrated information page to find comprehensive details about the MAX491ECPD+.
Q: Are the price and stock information for MAX491ECPD+ on Ovaga's platform accurate?
A: Inventory levels for Analog Devices Inc./Maxim Integrated products can fluctuate and may not be updated in real time. The information is refreshed periodically within 24 hours. To confirm stock availability and final pricing, you must confirm your order with an Ovaga salesperson or customer service representative before proceeding with payment.
Q: Can I place orders offline with Ovaga?
A: Yes, offline orders are accepted. You can navigate to the "My Orders" section and enter transaction management to place your order. Reviewing the "Order Details" and proceeding to place the order is straightforward. Additionally, you may benefit from coupons or selected gifts when ordering online.
Q: What payment methods are accepted by Ovaga?
A: Ovaga accepts various payment methods, including Wire Transfer, PayPal, Credit Cards, Western Union, and Money Gram.
Q: How is shipping arranged, and how can I track my package?
A: Customers can choose from industry-leading freight companies such as DHL, FedEx, UPS, TNT, EMS, and Registered Air Mail. Once your order is processed for shipment, you will receive an email with the shipping status and tracking number. Note that tracking information may take up to 24 hours to be displayed by carriers. Typically, express delivery takes 2-5 days.
Q: What is the return or replacement process for MAX491ECPD+?
A: Ovaga conducts Pre-Shipment Inspections (PSI) on all orders to ensure quality before shipment. Suppose there are issues such as quantity discrepancies, incorrect items, or visible defects (e.g., breakage or rust), and they are acknowledged by us. In that case, returns or replacements will be accepted under the following conditions:
- ●The defect must be reported within 365 days after delivery.
- ●The product must be unused and in its original, unopened packaging.
- ●Requesting Return Authorizations must be obtained.
For the return process:
- ●Please inform us within 365 days of receiving the product.
- ●Obtain Return Authorization from our team.
- ●Please refer to our After-Sale Matters for more detailed instructions.
Q: How can I contact Ovaga for support, including obtaining datasheets or pin diagrams for the MAX491ECPD+?
A: For any after-sales support or technical inquiries, including requests for datasheets or pin diagrams, please get in touch with us via email at [email protected].
Q: What can you tell me about Ovaga's quality assurance practices?
A: Ovaga is committed to maintaining the highest standards of quality. We are certified under ISO14001, ISO 9001, IATF16949, ISO13485, and DUNS standards by the Quality Systems Registrar. This certification signifies that our operational systems meet stringent international standards in quality management. Our compliance is regularly reviewed and tested to ensure ongoing adherence to these standards, affirming our commitment to quality and continuous improvement.
Q: What do the ISO, IATF, and DUNS certifications mean for customers of Ovaga?
A: Our ISO, IATF, and DUNS certifications assure customers that Ovaga operates systems that are both accurate and comprehensive, meeting the rigorous requirements of the ISO, IATF, and DUNS standards. This certification underscores our long-term commitment to continuous improvement across our operations. As a note to our customers, while we strive for accuracy in product data on our website, we recommend referring to the manufacturer's datasheet or catalog for confirmed product specifications before placing an order. If you identify any discrepancies, please get in touch with us immediately.
Part points
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The MAX491ECPD+ is a high-speed, low-power RS-422/RS-485 transceiver designed by Maxim Integrated. Key features include wide input voltage range, low quiescent current, excellent common-mode rejection ratio, and built-in protection mechanisms. This transceiver finds applications in various industries, such as industrial automation, process control, remote monitoring systems, and networking equipment. Its versatility makes it a reliable solution for integrating communication interfaces into complex systems.
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Equivalent
The equivalent products for MAX491ECPD+ include other high-speed, low-power RS-422/RS-485 transceivers from Maxim Integrated or its competitors like Texas Instruments (LMR2430) or ON Semiconductor (NSC7461)). -
Features
The MAX491ECPD+ is a high-speed, low-power RS-422/RS-485 transceiver. Key features include:
Wide input voltage range (±4V to ±18V).
Low quiescent current of 350 µA.
High common-mode rejection ratio (94 dB).
Wide bandwidth of 100 kHz.
Low distortion with a maximum of 0.003%.
Built-in short-circuit protection and thermal shutdown protection. These features make the MAX491ECPD+ suitable for various industrial automation, process control, and communication applications. -
Pinout
The MAX491ECPD+ is a 14-pin dual in-line package (PDIP). Here's a concise summary of its pin functions:
VCC: Power supply input, typically +5V or +3.3V.
GND: Ground connection.
D0: Transmit data line 0.
D1: Transmit data line 1.
RxD0: Receive data line 0.
RxD1: Receive data line 1.
RTS: Request to send control signal for RS-422/RS-485 communication.
CTS: Clear to send control signal.
DTR: Data terminal ready control signal, often used for flow control in serial communications. 1
DCD: Data carrier detect control signal, indicating if data is being transmitted. Please note that the pinout and functions may vary slightly depending on the specific variant of the MAX491ECPD+. -
Manufacturer
The manufacturer of the MAX491ECPD+ is Maxim Integrated, a leading semiconductor company. Founded in 1983, Maxim specializes in developing analog and mixed-signal integrated circuits for various industries. -
Application Field
MAX491ECPD+ finds application in various industries, including industrial automation, process control, remote monitoring systems, test equipment, sensor interfaces, motor control, data acquisition, networking devices, supervision systems, and power distribution. -
Package
The MAX491ECPD+ has a PDIP-14 package type.
Assembly Advice
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