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The MAX1482 and MAX1483 are low-power transceivers for RS-485 and RS-422 communication. Both feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables. Data rates are guaranteed up to 250kbps.
The MAX1482/MAX1483 draw only 20µA of supply current. Additionally, they have a low-current shutdown mode that consumes only 0.1µA. Both parts operate from a single +5V supply.
Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit.
The MAX1482 is full duplex and the MAX1483 is half duplex. Both parts have a 1/8-unit-load input impedance that guarantees up to 256 transceivers on the bus.
The MAX1482/MAX1483 draw only 20µA of supply current. Additionally, they have a low-current shutdown mode that consumes only 0.1µA. Both parts operate from a single +5V supply.
Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit.
The MAX1482 is full duplex and the MAX1483 is half duplex. Both parts have a 1/8-unit-load input impedance that guarantees up to 256 transceivers on the bus.
Key Features
- Low 20µA Operating Current
- Slew-Rate Limited for Reduced EMI and Reduced Reflections
- 0.1µA Low-Current Shutdown Mode
- Designed for RS-485 and RS-422 Applications
- Operate from a Single +5V Supply
- -7V to +12V Common-Mode Input Voltage Range
- Allows up to 256 Transceivers on the BusGuaranteed (1/8-unit load)
- Current Limiting and Thermal Shutdown for Driver Overload Protection
Applications/Uses
- Industrial Control Local Area Networks
- Large 256-Node LANs
- Low-Power RS-485/RS-422 Networks
- Transceivers for EMI-Sensitive Applications
Parametric specs for RS-485/RS-422 Line Driver/Receivers
| # Tx/Rx | 1Tx + 1Rx |
| Duplex | Full |
| VSUPPLY (V) | 5 |
| Data Rate (kbps) (min) | 250 |
| ICC (mA) (typ) | 0.02 |
| Tx EN | Yes |
| Rx EN | Yes |
| ICC (Shutdn.) (µA) (typ) | 0.1 |
| Oper. Temp. (°C) | -40 to +85 0 to +70 |
| Package/Pins | PDIP/14 SOIC (N)/14 |
| Budgetary Price (See Notes) | $1.62 @1k |
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Technical Docs
| Data Sheet | 20µA, 1/8-Unit-Load, Slew-Rate-Limited, RS-485 Transceivers | Jun 28, 2006 |
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Parameters
Parametric specs for RS-485/RS-422 Line Driver/Receivers
| # Tx/Rx | 1Tx + 1Rx |
| Duplex | Full |
| VSUPPLY (V) | 5 |
| Data Rate (kbps) (min) | 250 |
| ICC (mA) (typ) | 0.02 |
| Tx EN | Yes |
| Rx EN | Yes |
| ICC (Shutdn.) (µA) (typ) | 0.1 |
| Oper. Temp. (°C) | -40 to +85 0 to +70 |
| Package/Pins | PDIP/14 SOIC (N)/14 |
| Budgetary Price (See Notes) | $1.62 @1k |
Key Features
- Low 20µA Operating Current
- Slew-Rate Limited for Reduced EMI and Reduced Reflections
- 0.1µA Low-Current Shutdown Mode
- Designed for RS-485 and RS-422 Applications
- Operate from a Single +5V Supply
- -7V to +12V Common-Mode Input Voltage Range
- Allows up to 256 Transceivers on the BusGuaranteed (1/8-unit load)
- Current Limiting and Thermal Shutdown for Driver Overload Protection
Applications/Uses
- Industrial Control Local Area Networks
- Large 256-Node LANs
- Low-Power RS-485/RS-422 Networks
- Transceivers for EMI-Sensitive Applications
Description
The MAX1482 and MAX1483 are low-power transceivers for RS-485 and RS-422 communication. Both feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables. Data rates are guaranteed up to 250kbps.
The MAX1482/MAX1483 draw only 20µA of supply current. Additionally, they have a low-current shutdown mode that consumes only 0.1µA. Both parts operate from a single +5V supply.
Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit.
The MAX1482 is full duplex and the MAX1483 is half duplex. Both parts have a 1/8-unit-load input impedance that guarantees up to 256 transceivers on the bus.
The MAX1482/MAX1483 draw only 20µA of supply current. Additionally, they have a low-current shutdown mode that consumes only 0.1µA. Both parts operate from a single +5V supply.
Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit.
The MAX1482 is full duplex and the MAX1483 is half duplex. Both parts have a 1/8-unit-load input impedance that guarantees up to 256 transceivers on the bus.
Technical Docs
| Data Sheet | 20µA, 1/8-Unit-Load, Slew-Rate-Limited, RS-485 Transceivers | Jun 28, 2006 |
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
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