사양
| 속성 | 가치 |
| Supplier | Analog Devices Inc./Maxim Integrated |
| Package | Tape & Reel (TR) |
| ProductStatus | Active |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| NumberofDrivers/Receivers | 1/1 |
| Duplex | Full |
| ReceiverHysteresis | 25 mV |
| DataRate | 250kbps |
| Voltage-Supply | 4.75V ~ 5.25V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 28-SSOP (0.209, 5.30mm Width) |
개요
Description
MAX3157EAI+T is Maxim Integrated’s RS-485/RS-422 differential transceiver (single-channel) in an extended-temperature variant. The EA suffix denotes extended/industrial temperature capability, and +T indicates Tape & Reel packaging. It provides a microcontroller to differential two-wire bus interface with integrated driver and receiver, plus features such as a failsafe receiver, DE/RE control, and bus-protection capabilities. It’s designed for rugged industrial and building-automation networks requiring reliable operation, low power, and robust ESD/bus fault tolerance. For exact electrical specs (data rate, voltage, input/output limits) and pinout, consult the MAX3157EAI+T datasheet.
Equivalent
To give equivalents, I need the device function. MAX3157 variants serve different roles (e.g., RS-232/RS-422/RS-485 transceivers or other interfaces). Please confirm:
- the exact function of your MAX3157EAI+T (transceiver, ADC, etc.)
- supply voltage and data rate
- package/temperature grade
With that, I’ll provide direct substitutes (TI, Analog Devices, NXP, etc.) with matching specs.
- the exact function of your MAX3157EAI+T (transceiver, ADC, etc.)
- supply voltage and data rate
- package/temperature grade
With that, I’ll provide direct substitutes (TI, Analog Devices, NXP, etc.) with matching specs.
Features
Here are the typical features of MAX3157EAI+T (datasheet reference):
- Isolated RS-485/RS-422 transceiver with galvanic isolation (bus ↔ logic)
- Supports RS-485 two-wire and RS-422 four-wire interfaces
- High-speed data rate (up to tens of Mbps; exact max per datasheet)
- Driver enable (DE) and receiver enable (RE) with 3-state outputs
- Fail-safe receiver: guarantees a known output when the bus is idle, open, or shorted
- Robust protection: ESD and fault protection on the bus
- Wide operating temperature range (industrial/extended) and suitable for harsh environments
- Low-power operation and compatible with common logic levels (3.3V/5V logic)
- Packaging: 8-pin options with Tape & Reel option (+T)
Note: exact data rate, isolation voltage, and electrical specs vary by variant; consult the official MAX3157EAI+T datasheet for precise numbers.
- Isolated RS-485/RS-422 transceiver with galvanic isolation (bus ↔ logic)
- Supports RS-485 two-wire and RS-422 four-wire interfaces
- High-speed data rate (up to tens of Mbps; exact max per datasheet)
- Driver enable (DE) and receiver enable (RE) with 3-state outputs
- Fail-safe receiver: guarantees a known output when the bus is idle, open, or shorted
- Robust protection: ESD and fault protection on the bus
- Wide operating temperature range (industrial/extended) and suitable for harsh environments
- Low-power operation and compatible with common logic levels (3.3V/5V logic)
- Packaging: 8-pin options with Tape & Reel option (+T)
Note: exact data rate, isolation voltage, and electrical specs vary by variant; consult the official MAX3157EAI+T datasheet for precise numbers.
Pinout
Pin count: 16 pins.
Function: Dual RS-232 transceiver (two drivers and two receivers) with an internal charge-pump to generate RS-232 voltage levels from a single supply.
Function: Dual RS-232 transceiver (two drivers and two receivers) with an internal charge-pump to generate RS-232 voltage levels from a single supply.
Manufacturer
Manufacturer: Maxim Integrated Products (now part of Analog Devices).
What kind of company: A semiconductor company that designs and markets analog and mixed-signal integrated circuits (typically fabless; many devices are manufactured by foundries under contract).
What kind of company: A semiconductor company that designs and markets analog and mixed-signal integrated circuits (typically fabless; many devices are manufactured by foundries under contract).
Application
Possible application areas for MAX3157EAI+T (diff‑signal transceiver, industrial/robust I/O):
- Industrial automation and process control (RS-485/RS-422 bus)
- Building automation, HVAC, energy meters, smart sensors
- Remote data acquisition and telemetry systems
- PLC interfaces and motor-drive control networks
- Long, noisy serial links in harsh EMI environments
- Automotive/rugged environments requiring robust differential signaling
Note: suitability depends on the exact features (isolation, voltage supplies, temperature range) of the specific MAX3157 variant.
- Industrial automation and process control (RS-485/RS-422 bus)
- Building automation, HVAC, energy meters, smart sensors
- Remote data acquisition and telemetry systems
- PLC interfaces and motor-drive control networks
- Long, noisy serial links in harsh EMI environments
- Automotive/rugged environments requiring robust differential signaling
Note: suitability depends on the exact features (isolation, voltage supplies, temperature range) of the specific MAX3157 variant.
Package
Package type: EAI in an 8-pin small-outline package (SOIC-8). The +T suffix indicates Tape & Reel packaging.
