DC1746A-B Linear Technology, DC1746A-B Datasheet
DC1746A-B
Specifications of DC1746A-B
Related parts for DC1746A-B
DC1746A-B Summary of contents
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... L, LT, LTC, LTM, Linear Technology, the Linear logo and μModule are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. MULTIPLE SWEEPS ...
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LTM2881 ABSOLUTE MAXIMUM RATINGS (Note GND .................................................. –0. GND2 ............................................... –0. CC2 V to GND .................................................... –0. Interface Voltages ( GND2 ........................ V ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are unless otherwise noted. L SYMBOL PARAMETER Power Supply V V Supply Voltage Supply Voltage Supply Current in Off Mode ...
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LTM2881 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are unless otherwise noted. L SYMBOL PARAMETER Logic V Logic Input Low Voltage Logic Input High Voltage I Logic Input Current INL V Logic ...
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SWITCHING CHARACTERISTICS temperature range, otherwise specifications are unless otherwise noted. L SYMBOL PARAMETER t Driver Rise or Fall Time Driver Output Enable or Disable ZLD ZHD t ...
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LTM2881 TYPICAL PERFORMANCE CHARACTERISTICS V = 5.0V 3.3V unless otherwise noted Receiver Skew vs Temperature 2.0 1.5 1.0 0.5 0 –0.5 –1.0 –50 – TEMPERATURE (°C) 2881 G01 R vs Temperature TERM ...
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TYPICAL PERFORMANCE CHARACTERISTICS V = 5.0V 3.3V unless otherwise noted Supply Current vs Temperature 100mA on V LOAD CC2 350 LTM2881-3 300 250 200 LTM2881-5 150 100 50 0 –50 –25 ...
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LTM2881 PIN FUNCTIONS LOGIC SIDE ( GND (Pin A1): General Purpose Logic Output. Logic OUT output connected through isolation path to D the condition of an isolation communication failure high ...
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BLOCK DIAGRAM V CC 2.2μ 2.2μ OUT = LOGIC SIDE COMMON TEST CIRCUITS Y GND + DI OR DRIVER – Figure 1. Driver DC Characteristics ISOLATED ...
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LTM2881 TEST CIRCUITS Y DI DRIVER R DIFF Z 2881 F04a DRIVER GND Figure 5. Driver Enable and Disable Timing Measurements A ± RECEIVER CM B ±V /2 ...
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TEST CIRCUITS CC2 RO RECEIVER CC2 RE 2881 F07a Figure 7. Receiver Enable/Disable Time Measurements RECEIVER – – Figure 8. Termination Resistance and Timing ...
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LTM2881 APPLICATIONS INFORMATION Overview The LTM2881 μModule transceiver provides a galvani- cally-isolated robust RS485/RS422 interface, powered by an integrated, regulated DC/DC converter, complete with decoupling capacitors. A switchable termination resistor is integrated at the receiver input to provide proper termina- ...
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APPLICATIONS INFORMATION 0 6.25 FREQUENCY (MHz) Figure 9a. Frequency Spectrum SLO Mode 125kHz Input reduce EMI emissions from equipment and data cables. The reduced slew rate mode is entered by taking the SLO pin low to GND2, where the data ...
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LTM2881 APPLICATIONS INFORMATION Switchable Termination Proper cable termination is very important for signal fidelity. If the cable is not terminated with its characteristic imped- ance, reflections will distort the signal waveforms. The integrated switchable termination resistor provides logic control of ...
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... ESL and achieve the same net capacitance. • Hot plugging the LTM2881 voltage supply without ad- ditional protection may cause device damage. Refer to Linear Technology Application Note 88, entitled “Ceramic Capacitors Can Cause Overvoltage Transients” for a detailed discussion of this problem. To protect against hot plug transients use a 6.8μ ...
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LTM2881 APPLICATIONS INFORMATION Cable Length versus Data Rate For a given data rate, the maximum transmission distance is bounded by the cable properties. A typical curve of cable length versus data rate compliant with the RS485 standard is shown in ...
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TYPICAL APPLICATIONS LTM2881 330k D OUT GND GND2 FAULT Figure 17. Isolated System Fault Detection LTM2881 PWR ...
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LTM2881 TYPICAL APPLICATIONS 1.8V OFF ON CMOS OUTPUT Figure 19. Switched 5V Power with Isolated CMOS Logic Connection with Low Voltage Interface PWR GND GND2 Figure 20. 4-Wire Full Duplex ...
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PACKAGE DESCRIPTION Z bbb // 4.445 3.175 1.905 0.635 0.000 0.635 1.905 3.175 4.445 Z aaa LTM2881 2881fb 19 ...
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LTM2881 PACKAGE DESCRIPTION bbb 4.445 3.175 1.905 0.635 0.635 1.905 3.175 4.445 Z aaa 2881fb ...
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... H-Grade parts added. Reflected throughout the data sheet. Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... CCC V CC LTM2881 PWR GND2 GND C B COMMENTS 1Mbps, ±10kV HBM ESD, 2500V RMS 2500V Isolation in Surface Mount Package RMS Half Duplex Full Duplex Full Duplex 15kV ESD LT 1110 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2009 L V CC2 2881fb ...