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ISO722DR Datasheet(PDF) 2 Page - Texas Instruments |
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ISO722DR Datasheet(HTML) 2 Page - Texas Instruments |
2 / 22 page www.ti.com DESCRIPTION (CONTINUED) GND2 1 2 3 4 8 7 6 5 V CC1 IN V CC1 GND1 V CC2 OUT GND2 EN 1 2 3 4 8 7 6 5 V CC1 IN V CC1 GND1 V CC2 OUT GND2 ISO721, ISO721M ISO722, ISO722M SLLS629B – JANUARY 2006 – REVISED MAY 2006 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. The symmetry of the dielectric and capacitor within the integrated circuitry provides for close capacitive matching, and allows fast transient voltage changes between the input and output grounds without corrupting the output. The small capacitance and resulting time constant provide for fast operation with signaling rates(1) from 0 Mbps (dc) to 100 Mbps for the ISO721/ISO722, and 0 Mbps to 150 Mbps with the ISO721M/ISO722M. These devices require two supply voltages of 3.3-V, 5-V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply and all outputs are 4-mA CMOS. The ISO722 and ISO722M devices includes an active-low output enable that when driven to a high-logic level, places the output in a high-impedance state, and turns off internal bias circuitry to conserve power. Both the ISO721 and ISO722 have TTL input thresholds and a noise-filter at the input that prevents transient pulses of up to 2 ns in duration from being passed to the output of the device. The ISO721M and ISO722M have CMOS VCC/2 input thresholds, but do not have the noise-filter and the additional propagation delay. These features of the ISO721M also provide for reduced jitter operation. The ISO721, ISO721M, ISO722, and ISO722M are characterized for operation over the ambient temperature range of –40°C to 125°C. (1) The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second). PACKAGE PIN ASSIGMENTS PACKAGE PIN ASSIGMENTS ISO721D, ISO721MD ISO722D, ISO722MD (TOP VIEW) (TOP VIEW) AVAILABLE OPTIONS OUTPUT INPUT NOISE MARKED PRODUCT PACKAGE(1) ORDERING NUMBER GREEN ENABLED THRESHOLDS FILTER AS ISO721D (rail) ISO721 NO TTL YES SOIC-8 ISO721 ISO721DR (reel) ISO721MD (rail) ISO721M NO CMOS NO SOIC-8 IS721M ISO721MDR (reel) Pb Free Sb/Br Free ISO722D (rail) ISO722 YES TTL YES SOIC-8 ISO722 ISO722DR (reel) ISO722MD (rail) ISO722M YES CMOS NO SOIC-8 IS722M ISO722MDR (reel) (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI Web site at www.ti.com. REGULATORY INFORMATION VDE CSA UL Approved under CSA Component Recognized under 1577 Certified according to IEC 60747-5-2 Acceptance Notice: CA-5A Component Recognition Program(1) File Number: 40014131 File Number: 1698195 File Number: E181974 (1) Production tested ≥ 3000 V RMS for 1 second in accordance with UL 1577. 2 Submit Documentation Feedback |
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