The 250kbps data rate is a deliberate choice: it is fast enough for most sensor and actuator networks over moderate cable runs while keeping signal-integrity management simple. The 25 mV of receiver hysteresis cleans up noise on long bus stubs. The 5V supply rail is fixed.
MAX3157EAI+T RS-422/RS-485 Transceiver, 250kbps, 28-SSOP
MPNMAX3157EAI+T
End of Life
Analog Devices MAX3157EAI+T, RS-422/RS-485 Transceiver, Full Duplex, 1/1 Drivers/Receivers, 250kbps, 4.75V~5.25V, -40°C~85°C, 28-SSOP (0.209", 5.30mm Width), Surface Mount.
$11.71Ref. price · indicative, final on quote
Packaging28-SSOP (0.209", 5.30mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Transceiver |
| Mounting | Surface Mount |
| Supply voltage | 4.75V ~ 5.25V |
| Protocol | RS422, RS485 |
| Operating temperature | -40°C ~ 85°C |
| Duplex | Full |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Data rate | 250kbps |
| Case | 28-SSOP (0.209\", 5.30mm Width) |
| Receiver hysteresis | 25 mV |
| Number of drivers (Receivers) | 1/1 |
Product details
Frequently asked questions
Does MAX3157EAI+T work with RS422?
Yes. The MAX3157EAI+T is specified for both RS-422 and RS-485 protocols, full-duplex operation.
Is MAX3157EAI+T compatible with 3.3V logic?
No. The supply voltage range is 4.75V to 5.25V. 3.3V logic levels are not within the guaranteed operating conditions; a level translator or a 3.3V-rated transceiver would be needed.