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MAX3098EACSE Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX3098EACSE Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 16 page General 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 condi- tion, 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 thresh- old values. The fault circuitry includes a capacitor-programmable delay to ensure that there are no erroneous fault condi- tions 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 Features o Detects the Following RS-485 Faults: Open-Circuit Condition Short-Circuit Condition Low Differential Voltage Signal Common-Mode Range Violation o ESD Protection ±15kV—Human Body Model ±15kV—IEC 1000-4-2, Air-Gap Discharge Method ±8kV—IEC 1000-4-2, Contact Discharge Method o Single +3V to +5.5V Operation o -10V to +13.2V Extended Common-Mode Range o Capacitor-Programmable Delay of Fault Indication Allows Error-Free Operation at Slow Data Rates o Independent and Universal Fault Outputs o 32Mbps Data Rate o 16-Pin QSOP is 40% Smaller than Industry- Standard 26LS31/32 Solutions ±15kV ESD-Protected, 32Mbps, 3V/5V, Triple RS-422/RS-485 Receivers with Fault Detection ________________________________________________________________ Maxim Integrated Products 1 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 AVCC ALARMA OUTA ALARMB OUTB ALARMZ OUTZ ALARMD TOP VIEW MAX3097E MAX3098E QSOP/SO/DIP A B Z B Z GND DELAY Pin Configuration ENCODED SIGNALS A, A, B, B, Z, Z MOTOR DRIVER MOTOR MOTOR CONTROLLER ALARM OUTPUTS RECEIVER OUTPUTS DSP 8 MAX3097E MAX3098E MAX547 12-BIT D/A Typical Application Circuit 19-1727; Rev 0; 7/00 For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. Ordering Information PART TEMP. RANGE PIN- PACKAGE MAX3097ECEE 0 °C to +70°C 16 QSOP MAX3097ECSE 0 °C to +70°C 16 SO Ordering Information continued at end of data sheet. |
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