MAX22025AWA+ Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The MAX22025AWA+ is a compact, isolated, half-duplex RS-485/RS-422 transceiver with auto-direction control in an 8-SOIC package. It operates with a 4.75 V to 5.25 V supply (VDDB), supports EIA-485 and EIA-422 standards, and simplifies bus direction switching without manual driver-enable control.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MAX22025AWA+ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.0800(MOQ 560)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX22025AWA+?
- Integrated galvanic isolation eliminates the need for external isolators in RS-485/RS-422 half-duplex links
- AutoDirection control automatically switches driver/receiver mode, reducing firmware complexity by eliminating manual DE/RE pin toggling
- Differential Schmitt-trigger input provides robust noise immunity on long industrial cable runs up to several hundred meters
- Compact 8-SOIC (300 mil) package with VDDB supply range of 4.75 V to 5.25 V and max supply current of 5.5 mA
What is MAX22025AWA+ used for?
The MAX22025AWA+ is used in industrial automation networks, building control systems, and process instrumentation where isolated RS-485 communication is required. Its auto-direction control feature simplifies UART-to-RS-485 bridging in microcontroller designs by eliminating the need for explicit DE/RE signal management. It is also well-suited for motor drive panels, PLC expansion modules, and field sensor networks operating in electrically noisy environments.
What are the specifications of MAX22025AWA+?
| Manufacturer Package Code | 8-SOIC_W-300_MIL |
| Date Of Intro | 2020-02-04 |
| YTEOL | 8.5 |
| Additional Feature | Also Require VDDB supply 4.75V to 5.25V and Supply current-Max 5.5mA |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-485; EIA-422 |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Out Swing-Min | 1.5V |
| Output Characteristics | DIFFERENTIAL |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Receive Delay-Max | 80ns |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 5.5mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 1.71V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 1000ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Where can I find the MAX22025AWA+ datasheet?
MAX22025AWA+ Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for MAX22025AWA+?
Compatible alternatives and drop-in replacements for MAX22025AWA+:
suggested
Frequently Asked Questions
How does the AutoDirection feature in the MAX22025AWA+ simplify half-duplex RS-485 firmware design?
The MAX22025AWA+ automatically senses the UART TX line to switch between driver and receiver modes, so the host MCU does not need to toggle a DE or RE pin manually. This eliminates direction-control GPIO overhead and timing glitches common in software-managed RS-485 designs, especially at baud rates of 115200 bps or higher.
What isolation voltage does the MAX22025AWA+ provide, and why does it matter in industrial RS-485 networks?
The MAX22025AWA+ provides galvanic isolation between the logic side and the RS-485 bus, protecting the host MCU from ground faults and transient voltages that frequently appear on long cable runs in industrial environments. This isolation is critical in 24 V or 48 V powered field-bus installations where ground potential differences can exceed several hundred volts during fault conditions.
Which supply voltage does the MAX22025AWA+ VDDB pin require, and what is its current consumption?
The VDDB pin of the MAX22025AWA+ requires a 4.75 V to 5.25 V supply voltage. Maximum supply current is 5.5 mA, making it suitable for bus-powered or locally regulated 5 V rail designs where power budget is a constraint in dense I/O expansion cards.
For a long-distance RS-485 network spanning 1,000 meters, is the MAX22025AWA+ differential Schmitt-trigger input sufficient for reliable reception?
Yes. The differential Schmitt-trigger receiver input of the MAX22025AWA+ rejects common-mode noise and provides hysteresis, enabling reliable reception at data rates up to several Mbps over cable runs of hundreds of meters when using twisted-pair cables with 120 ohm termination resistors at both ends of the RS-485 bus.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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