General Description
The MAX3097E/MAX3098E feature three high-speed RS485/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.
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 IndustryStandard 26LS31/32 Solutions
Feature
- 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
Applications
- Embedded Systems
- High-Speed, Triple RS-485/RS-422 Receiver with Extended Electrostatic Discharge (ESD)
- RS-485/RS-422 Receivers for Motor-Shaft Encoders
- Telecommunications
- Triple RS-485/RS-422 Receiver with Input Fault Indication
(Picture: Pinout)