ISL3280E Overview
These receivers have very low bus currents (+125µA/-100µA), so they present a true “1/8 unit load” to the RS-485 bus. This allows up to 256 receivers on the network without violating the RS-485 specification’s 32 unit load maximum and without using repeaters.
ISL3280E Key Features
- IEC61000 ESD protection on RS-485 inputs
- ±16.5kV
- Class 3 ESD level on all other pins
- >5kV HBM
- Pb-free (RoHS pliant)
- Wide supply range
- 3.0V to 5.5V
- Specified for +125°C operation
- Logic supply pin (VL) eases operation in mixed supply
- Full fail-safe (open, short, terminated/undriven)