MAX3097E

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


Application

*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


Pinout




Specifications

Supply Voltage (VCC)...............................................................+7V
Receiver Input Voltage (A, A, B, B, Z, Z).................................±25V
Output Voltage (OUT_, ALARM_)....................-0.3V to (VCC + 0.3V)
DELAY.............................................................-0.3V to (VCC + 0.3V)
Continuous Power Dissipation (TA = +70°C)
16-Pin QSOP (derate 8.3mW/°C above +70°C)................667mW
16-Pin SO (derate 8.7mW/°C above +70°C)....................696mW
16-Pin Plastic DIP (derate 10.53mW/°C
above +70°C)....................................................................762mW
Operating Temperature Ranges
MAX3097EC_E........................................................0°C to +70°C
MAX3098E_C_E......................................................0°C to +70°C
MAX3097E_E_E...................................................-40°C to +85°C
MAX3098E_E_E...................................................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Junction Temperature.......................................................+150°C
Lead Temperature (soldering, 10s)..................................+300°C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.


Description

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 of MAX3097E/MAX3098E 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.