Product Details
Key Features
Applications/Uses
# Tx/Rx | 1Tx + 1Rx |
Duplex | Half/Full |
VSUPPLY (V) | 5 |
Data Rate (kbps) (min) | 250 |
Galvanic Isolation (±V) | 50 |
ICC (mA) (typ) | 25 |
Tx EN | Yes |
Rx EN | Yes |
ICC (Shutdn.) (µA) (typ) | 25 |
Oper. Temp. (°C) | -40 to +85 0 to +70 |
Package/Pins | SSOP HYBRID/28 |
Budgetary Price (See Notes) | 5.69 |
Simplified Block Diagram
Technical Docs
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Parameters
# Tx/Rx | 1Tx + 1Rx |
Duplex | Half/Full |
VSUPPLY (V) | 5 |
Data Rate (kbps) (min) | 250 |
Galvanic Isolation (±V) | 50 |
ICC (mA) (typ) | 25 |
Tx EN | Yes |
Rx EN | Yes |
ICC (Shutdn.) (µA) (typ) | 25 |
Oper. Temp. (°C) | -40 to +85 0 to +70 |
Package/Pins | SSOP HYBRID/28 |
Budgetary Price (See Notes) | 5.69 |
Key Features
- ±50V Isolated Data Interface
- +5V Single Supply
- Low-Cost Replacement for Opto-Isolated Transceivers
- True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compliance
- Pin-Selectable Full/Half-Duplex Operation
- Phase Controls to Correct for Twisted-Pair Reversal
- 25µA Low-Power Shutdown Mode
- Thermal Shutdown for Driver Overload Protection
- 28-Pin SSOP Package
- Slew Rate Limited Reduced EMI
Applications/Uses
- Automated Test Equipment (ATE)
- Building Energy Management (HVAC)
- Building Security/Remote Cameras
- High-Speed Access (Telecom)
- Industrial Sensor Transmitters/Transducers
- Motor and Motion Control
- POS Terminals
- Programmable Logic Controllers
- Remote Cameras
- Telecom Switches
- Test and Measurement Equipment
- X-Ray and Ultrasound Diagnostics
Description
The MAX3157 typically draws 25mA of supply current when unloaded or when fully loaded with the driver disabled. Supply current drops to 25µA when the device is placed in shutdown mode. The device is pin selectable between half- and full-duplex mode and also features independently programmable receiver and transmitter output phase through separate pins. The MAX3157 is a low-cost replacement for opto-isolated transceivers. For fully isolated RS-485/RS-422 transceivers, refer to the MAX1480 family data sheet.
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .