DESCRIPTION
The LTC®4332 is a point-to-point rugged SPI extender
designed for operation in high noise industrial environments
over long distances. Using a ±60V fault protected
differential transceiver, the LTC4332 can transmit SPI data,
including an interrupt signal, up to 2MHz over two twisted
pair cables. The extended common mode range and high
common mode rejection on the differential link provides
tolerance to large ground differences between nodes.
The LTC4332 provides a control interface using a separate
slave select for configuration and fault monitoring.

FEATURES
- 2MHz SCK Over 10m, Operation Up to 1200m
- Three Extended Slave Selects
- Protected from Overvoltage Lines Fault to ±60V
- ±40kV HBM ESD on Link Pins
- IEC ESD ±6kV and EFT ±4kV on Link Pins
- Extended Common Mode Range: ±25V
- Extended Interrupt
- Separate Programmable SPI Modes
- 3V to 5.5V Supply Voltage
- 1.62V to 5.5V Logic Supply
- 4mm × 5mm 20-Lead QFN Package

APPLICATIONS
- Industrial Control and Sensors
- Lighting and Sound System Control