Overview
The MAX3490ESA+T is a 3.3V, low-power transceiver designed for RS-485 and RS-422 communication. It is part of the MAX3483/MAX3485/MAX3486/MAX3488/MAX3490/MAX3491 series from Analog Devices Inc./Maxim Integrated. This device is optimized for high-speed data transmission and features a single 3.3V supply operation without the need for a charge pump. It is interoperable with +5V logic, making it versatile for various applications.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Part Number | MAX3490ESA+T |
| Supply Voltage (VCC) | 3.3V ±0.3V |
| Data Rate (kbps) | Up to 10Mbps |
| Typical ICC (mA) | 1 mA |
| Operating Temperature (°C) | -40°C to +85°C |
| Package/Pins | SOIC-8 |
| Common-Mode Input Voltage Range | -7V to +12V |
| Max Skew | 8ns |
| Shutdown Current | 2nA |
Key Features
- Operates from a single 3.3V supply without a charge pump.
- Interoperable with +5V logic.
- 8ns maximum skew.
- Slew-rate limited for errorless data transmission.
- 2nA low-current shutdown mode.
- -7V to +12V common-mode input voltage range.
- Allows up to 32 transceivers on the bus.
- Full-duplex and half-duplex versions available.
- Industry standard 75176 pinout.
- Current-limiting and thermal shutdown for driver overload protection.
Applications
- RS-485 and RS-422 communication systems.
- Industrial I/O and automation.
- Automotive interfaces (CAN, Audio, Ethernet).
- Home bus transceivers (HomeBus TxRx).
- Local interconnect transceivers (LIN TxRx).
- LVDS/MLVDS applications.
- Multiprotocol transceivers.
- Powerline communications.
Q & A
- What is the operating supply voltage of the MAX3490ESA+T?
The MAX3490ESA+T operates from a single 3.3V supply.
- What is the maximum data rate supported by the MAX3490ESA+T?
The MAX3490ESA+T supports data rates up to 10Mbps.
- What is the typical current consumption of the MAX3490ESA+T?
The typical current consumption (ICC) is 1 mA.
- What is the operating temperature range of the MAX3490ESA+T?
The operating temperature range is -40°C to +85°C.
- What package options are available for the MAX3490ESA+T?
The MAX3490ESA+T is available in an SOIC-8 package.
- What is the common-mode input voltage range of the MAX3490ESA+T?
The common-mode input voltage range is -7V to +12V.
- Does the MAX3490ESA+T support full-duplex and half-duplex modes?
Yes, the MAX3490ESA+T supports both full-duplex and half-duplex modes.
- What kind of protection does the MAX3490ESA+T have for driver overload?
The MAX3490ESA+T features current-limiting and thermal shutdown for driver overload protection.
- How many transceivers can be connected on the bus with the MAX3490ESA+T?
Up to 32 transceivers can be connected on the bus.
- Is the MAX3490ESA+T RoHS compliant?
Yes, the MAX3490ESA+T is RoHS compliant.
