am26lv31 low-voltage high-speed quadruple differential line driver slls201e may 1995 revised december 1999 1 post office box 655303 ? dallas, texas 75265 switching rates up to 32 mhz operates from a single 3.3-v supply propagation delay time ...8 ns typ pulse skew time . . . 500 ps typ high output-drive current . . . 30 ma controlled rise and fall times ...3 ns typ differential output voltage with 100- w load . . . 1.5 v typ ultra-low power dissipation dc, 0.3 mw max 32 mhz all channels (no load), 385 mw typ accepts 5-v logic inputs with a 3.3-v supply low-voltage pin-to-pin compatible replacement for am26c31, am26ls31, mb571 high output impedance in power-off condition driver output short-protection circuit package options include plastic small-outline (d, ns) packages description the am26lv31 is a bicmos quadruple differential line driver with 3-state outputs. it is designed to be similar to tia/eia-422-b and itu recommendation v.11 drivers with reduced supply-voltage range. the device is optimized for balanced-bus transmission at switching rates up to 32 mhz. the outputs have very high current capability for driving balanced lines such as twisted-pair transmission lines and provide a high impedance in the power-off condition. the enable function is common to all four drivers and offers the choice of active-high or active-low enable inputs. the am26lv31 is designed using texas instruments (ti ? ) proprietary linimpact-c60 ? technology, facilitating ultra-low power consumption without sacrificing speed. this device offers optimum performance when used with the am26lv32 quadruple line receivers. the am26lv31c is characterized for operation from 0 c to 70 c. function table input enables outputs a g g y z h h x h l l h xl h h x lh l l x ll h x l h z z h = high level, l = low level, x = irrelevant, z = high impedance (off) copyright ? 1999, texas instruments incorporated production data information is current as of publication date. products conform to specifications per the terms of texas instruments standard warranty. production processing does not necessarily include testing of all parameters. linimpact-c60 and ti are trademarks of texas instruments incorporated. 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. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1a 1y 1z g 2z 2y 2a gnd v cc 4a 4y 4z g 3z 3y 3a d or ns package (top view) the d package is available taped and reeled. the ns package is only available taped and reeled. add the suffix r to device type (e.g., am26lv31cdr).
am26lv31 low-voltage high-speed quadruple differential line driver slls201e may 1995 revised december 1999 2 post office box 655303 ? dallas, texas 75265 logic symbol 2 1 en 2 this symbol is in accordance with ansi/ieee std 91-1984 and iec publication 617-12. g 4 g 12 g 1 1a 1y 2 1z 3 2y 6 2z 5 3y 10 3z 11 4y 14 4z 13 7 2a 9 3a 15 4a logic diagram (positive logic) 4z 4y 3z 3y 2z 2y 1z 1y 13 14 11 10 5 6 3 2 4a 3a 2a 1a g g 15 9 7 1 12 4 schematic (each driver) input v cc typical of all outputs (y and z) output v cc gnd gnd equivalent of each input (a, g, or g ) 100 w 40 k w 6 w all resistor values are nominal.
am26lv31 low-voltage high-speed quadruple differential line driver slls201e may 1995 revised december 1999 3 post office box 655303 ? dallas, texas 75265 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) 2 supply voltage range, v cc (see note 1) 0.3 v to 6 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . input voltage range, v i 0.3 v to 6 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . output voltage range, v o 0.3 v to 6 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . package thermal impedance, q ja (see note 2): d package 73 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ns package 64 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . storage temperature range, t stg 65 c to 150 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 stresses beyond those listed under aabsolute maximum ratingso may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated under arecommended operating conditi onso is not implied. exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. notes: 1. all voltage values are with respect to gnd. 2. the package thermal impedance is calculated in accordance with jesd 51. recommended operating conditions min nom max unit supply voltage, v cc 3 3.3 3.6 v high-level input voltage, v ih 2 v low-level input voltage, v il 0.8 v high-level output current, i oh 30 ma low-level output current, i ol 30 ma operating free-air temperature, t a 0 70 c
am26lv31 low-voltage high-speed quadruple differential line driver slls201e may 1995 revised december 1999 4 post office box 655303 ? dallas, texas 75265 electrical characteristics over recommended operating supply-voltage and free-air temperature ranges (unless otherwise noted) parameter test conditions min typ 2 max unit v ik input clamp voltage i i = 18 ma 1.5 v v oh high-level output voltage v ih = 2 v, i oh = 12 ma 1.85 2.3 v v ol low-level output voltage v il = 0.8 v, i oh = 12 ma 0.8 1.05 v |v od | differential output voltage 3 0.95 1.5 v v oc common-mode output voltage r l = 100 w 1.3 1.55 1.8 v d |v oc | change in magnitude of common-mode output voltage 3 r l = 100 w 0.2 v i o output current with power off v o = 0.25 v or 6 v, v cc = 0 100 m a i oz off-state (high-impedance state) output current v o = 0.25 v or 6 v, g = 0.8 v or g = 2 v 100 m a i ih high-level input current v cc = 0 or 3 v, v i = 5.5 v 10 m a i il low-level input current v cc = 3.6 v, v i = 0 10 m a i os short-circuit output current v cc = 3.6 v, v o = 0 200 ma i cc supply current (all drivers) v i = v cc or gnd, no load 100 m a c pd power dissipation capacitance (all drivers) no load 160 pf 2 all typical values are at v cc = 3.3 v and t a = 25 c. 3 d |v od | and d |v oc | are the changes in magnitude of v od and v oc , respectively, that occur when the input is changed from a high level to a low level. c pd determines the no-load dynamic current consumption. i s = c pd v cc f + i cc switching characteristics, v cc = 3.3 v, t a = 25 c parameter test conditions min typ max unit t plh propagation delay time, low- to high-level output 4 8 12 ns t phl propagation delay time, high- to low-level output see figure 2 4 8 12 ns t t transition time (t r or t f ) 3 ns sr slew rate, single-ended output voltage see note 3 and figure 2 0.3 1 v/ns t pzh output-enable time to high level see figure 3 10 20 ns t pzl output-enable time to low level see figure 4 10 20 ns t phz output-disable time from high level see figure 3 10 20 ns t plz output-disable time from low level see figure 4 10 20 ns t sk(p) pulse skew f = 32 mhz, see note 4 0.5 1.5 ns t sk(o) skew limit f = 32 mhz, see note 5 1.5 ns t sk(lim) skew limit (device to device) f = 32 mhz, see note 6 3 ns notes: 3. slew rate is defined by: sr 90% v oh v ol 10% v oh v ol t r , the differential slew rate of v od is 2 sr. 4. pulse skew is defined as the |t plh t phl | of each channel of the same device. 5. skew limit is the difference between any two outputs of the same device switching in the same direction. 6. skew limit (device to device) is the maximum difference in propagation delay times between any two channels of any two device s.
am26lv31 low-voltage high-speed quadruple differential line driver slls201e may 1995 revised december 1999 5 post office box 655303 ? dallas, texas 75265 parameter measurement information r l /2 v oc r l /2 v od2 g g a y z figure 1. differential and common-mode output voltages test circuit generator (see note b) 50 w v cc r l = 100 w c l = 15 pf (see note a) v od g g a y z v o v o z output, v o input t plh t phl v cc 0 v 50% 50% propagation delay times y a output, v o t r t f v oh 90% 90% rise and fall times 10% 10% v ol notes: a. c l includes probe and jig capacitance. b. the input pulse is supplied by a generator having the following characteristics: prr = 32 mhz, z o 50 w , 50% duty cycle, t r and t f 2 ns. 10% 10% 90% 90% y z t f t r v ol v oh figure 2. test circuit and voltage waveforms, t phl and t plh
am26lv31 low-voltage high-speed quadruple differential line driver slls201e may 1995 revised december 1999 6 post office box 655303 ? dallas, texas 75265 parameter measurement information input t pzh t phz v cc 50% 50% 0 v output v oh 50% voltage waveforms v off 0 0.3 v notes: a. c l includes probe and jig capacitance. b. the input pulse is supplied by a generator having the following characteristics: prr = 1 mhz, z o = 50 w , 50% duty cycle, t r and t f (10% to 90%) 2 ns. c. to test the active-low enable g , ground g and apply an inverted waveform to g . s1 generator (see note b) 50 w v cc r l = 110 w c l = 15 pf (see note a) v cc (see note c) output test circuit a y g g z figure 3. test circuit and voltage waveforms, t pzh and t phz
am26lv31 low-voltage high-speed quadruple differential line driver slls201e may 1995 revised december 1999 7 post office box 655303 ? dallas, texas 75265 parameter measurement information input t pzl t plz v cc 50% 50% 0 v output v ol 50% voltage waveforms v off v cc 0.3 v notes: a. c l includes probe and jig capacitance. b. the input pulse is supplied by a generator having the following characteristics: prr = 1 mhz, z o = 50 w , 50% duty cycle, t r and t f (10% to 90%) 2 ns. c. to test the active-low enable g , ground g and apply an inverted waveform to g . s1 generator (see note b) 50 w v cc r l = 110 w c l = 15 pf (see note a) v cc (see note c) output test circuit v cc a y z g g figure 4. test circuit and voltage waveforms, t pzl and t plz
important notice texas instruments and its subsidiaries (ti) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. all products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. ti warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with ti's standard warranty. testing and other quality control techniques are utilized to the extent ti deems necessary to support this warranty. specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. certain applications using semiconductor products may involve potential risks of death, personal injury, or severe property or environmental damage (acritical applicationso). ti semiconductor products are not designed, authorized, or warranted to be suitable for use in life-support devices or systems or other critical applications. inclusion of ti products in such applications is understood to be fully at the customer's risk. in order to minimize risks associated with the customer's applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. ti assumes no liability for applications assistance or customer product design. ti does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of ti covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. ti's publication of information regarding any third party's products or services does not constitute ti's approval, warranty or endorsement thereof. copyright ? 1999, texas instruments incorporated
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