MAX3097ECEE+T

The MAX3097E/MAX3098E feature three high- speed RS- 485/RS- 422 receivers with fault- detection circuitry and fault- status outputs. The receivers' inputs have fault thresholds that detect when the part is not in a valid state. The MAX3097E/MAX3098E indicate when a receiver input is in an open- circuit condition, short- circuit condition, or outside the common- mode range. They also generate a fault indication when the differential input voltage goes below a preset threshold. See Ordering Information or the Electrical Characteristics for threshold values. The fault circuitry includes a capacitor- programmable delay to ensure that there are no erroneous fault conditions even at slow edge rates. Each receiver is capable of accepting data at rates up to 32Mbps.

Applications

• RS- 485/RS- 422 Receivers for Motor- Shaft Encoders
• High- Speed, Triple RS- 485/RS- 422 Receiver with Extended Electrostatic Discharge (ESD)
• Triple RS- 485/RS- 422 Receiver with Input Fault Indication
• Telecommunications
• Embedded Systems

Key features

• Detects the Following RS- 485 Faults:
• Open- Circuit Condition
• Short- Circuit Condition
• Low Differential Voltage Signal
• Common- Mode Range Violation
• ESD Protection:
• ±15kV —Human Body Model
• ±15kV —IEC 1000- 4- 2, Air- Gap Discharge Method
• ±8kV —IEC 1000- 4- 2, Contact Discharge Method
• Single +3V to +5.5V Operation
• - 10V to +13.2V Extended Common- Mode Range
• Capacitor- Programmable Delay of Fault Indication Allows Error- Free Operation at Slow Data Rates
• Independent and Universal Fault Outputs
• 32Mbps Data Rate
• 16- Pin QSOP is 40% Smaller than Industry- Standard 26LS31/32 Solutions