Overview
Description
The RAA7884QR is a ±16.5kV IEC61000-4-2 ESD protected, 3.0V to 5.5V powered, quad receiver designed for balanced communication using the RS-485 and RS-422 standards. With low input currents (±200µA), the receiver presents a 1/4 unit load to the RS-485 bus and allows up to 128 receivers on the bus.
The RAA7884QR is a high data rate receiver that operates at data rates up to 80Mbps. With an 8ns maximum propagation delay skew (tolerance), it ensures excellent part-to-part matching. The receiver outputs are tri-statable and include a hot plug feature to keep them disabled during power-up and power-down.
Features
- IEC61000 ESD protection (RS-485 inputs): ±16.5kV
- Class 3 ESD on all other pins: >8kV HBM
- Wide supply range: 3.0V to 5.5V
- Wide common-mode range: -7V to +12V
- Low part-to-part propagation delay tolerance: 8ns (maximum)
- Specified for +125°C operation
- Fail-safe open Rx inputs
- 1/4 unit load allows 128 devices on the bus
- Available in industry standard pinout
- High data rate of up to 80Mbps
- Low shutdown supply current: 15µA
- Tri-statable Rx outputs
- 5V tolerant logic inputs when VCC = 3.3V
- RoHS Compliant
Comparison
Applications
- Telecom equipment
- Motor controllers/encoders
- Programmable logic controllers
- Industrial/process control networks
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.