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ISO7240MDWG4 Datasheet(PDF) 1 Page - Texas Instruments |
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ISO7240MDWG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page 1 2 3 4 5 6 7 8 ISO7240 9 10 11 12 13 14 15 16 NC INA GND1 VCC1 GND1 GND2 GND2 INB INC OUTA OUTC OUTB EN VCC2 IND OUTD 1 2 3 4 5 6 7 8 ISO7241 9 10 11 12 13 14 15 16 INA GND1 VCC1 GND1 GND2 GND2 INB INC OUTA OUTC OUTB VCC2 IND OUTD EN2 EN1 1 2 3 4 5 6 7 8 ISO7242 9 10 11 12 13 14 15 16 INA GND1 VCC1 GND1 GND2 GND2 INB OUTA OUTB VCC2 IND OUTD EN2 EN1 OUTC INC DISABLE INA GND1 VCC1 GND1 INB INC IND GND2 GND2 OUTA OUTC OUTB CTRL VCC2 OUTD ISO7240CF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ISO7240CF, ISO7240C, ISO7240M ISO7241C, ISO7241M ISO7242C, ISO7242M www.ti.com SLLS868N – SEPTEMBER 2007 – REVISED JANUARY 2012 HIGH SPEED QUAD DIGITAL ISOLATORS Check for Samples: ISO7240CF, ISO7240C, ISO7240M, ISO7241C, ISO7241M, ISO7242C, ISO7242M 1 FEATURES • Selectable Failsafe Output (ISO7240CF) • 4 kV ESD Protection • 25 and 150-Mbps Signaling Rate Options • Operates With 2.8-V (ISO7241C), 3.3-V or 5-V Supplies – Low Channel-to-Channel Output Skew; • High Electromagnetic Immunity 1 ns Max (see application report SLLA181) – Low Pulse-Width Distortion (PWD); • –40°C to 125°C Operating Range 2 ns Max – Low Jitter Content; 1 ns Typ at 150 Mbps APPLICATIONS • Typical 25-Year Life at Rated Working Voltage • Industrial Fieldbus (see application note SLLA197 and Figure 17) • Computer Peripheral Interface • 4000-Vpeak VIOTM, 560-Vpeak VIORM per IEC • Servo Control Interface 60747-5-2 (VDE 0884, Rev 2) • Data Acquisition • UL 1577 , IEC 61010-1, IEC 60950-1 and CSA Approved DESCRIPTION The ISO7240, ISO7241 and ISO7242 are quad-channel digital isolators with multiple channel configurations and output enable functions. These devices have logic input and output buffers separated by TI ’s silicon dioxide (SiO2) isolation barrier. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry. The ISO7240 has all four channels in the same direction while the ISO7241 has three channels the same direction and one channel in opposition. The ISO7242 has two channels in each direction. The C option devices have TTL input thresholds and a noise-filter at the input that prevents transient pulses from being passed to the output of the device. The M option devices have CMOS Vcc/2 input thresholds and do not have the input noise-filter or the additional propagation delay. The ISO7240CF has an input disable function on pin 7, and a selectable high or low failsafe-output function with the CTRL pin (pin 10). The failsafe-output is a logic high when a logic-high is placed on the CTRL pin or it is left unconnected. If a logic-low signal is applied to the CTRL pin, the failsafe-output becomes a logic-low output state. The ISO7240CF input disable function prevents data from being passed across the isolation barrier to the output. When the inputs are disabled, the outputs are set by the CTRL pin. These devices may be powered from 2.8-V (ISO7241C only), 3.3-V or 5-V supplies on either side in any combination. Note that the signal input pins are 5-V tolerant regardless of the voltage supply level being used. These devices are characterized for operation over the ambient temperature range of –40°C to 125°C. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2007–2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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