AM26LV31 LOW-VOLTAGE HIGH-SPEED QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS201E – MAY 1995 – REVISED DECEMBER 1999 D D D D D D D D D D D D D D OR NS PACKAGE (TOP VIEW) 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-Ω 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 1A 1Y 1Z G 2Z 2Y 2A GND 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 VCC 4A 4Y 4Z G 3Z 3Y 3A 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). 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 A ENABLES OUTPUTS G G Y Z H H X H L H L H X L H X L H L L X L L H X L H Z Z H = high level, L = low level, X = irrelevant, Z = high impedance (off) 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. LinIMPACT-C60 and TI are trademarks of Texas Instruments Incorporated. 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 AM26LV31 LOW-VOLTAGE HIGH-SPEED QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS201E – MAY 1995 – REVISED DECEMBER 1999 logic symbol† G G 4 logic diagram (positive logic) G ≥1 12 G G EN 1A 1A 2 1 3 6 2A 7 5 10 3A 4A 9 11 14 15 13 1Y 2A 4 12 2 1 3 6 7 5 1Z 2Y 2Z 3A 10 9 11 3Y 3Z 4A 14 15 13 4Y 1Y 1Z 2Y 2Z 3Y 3Z 4Y 4Z 4Z † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. schematic (each driver) EQUIVALENT OF EACH INPUT (A, G, OR G) TYPICAL OF ALL OUTPUTS (Y AND Z) VCC VCC 100 Ω 40 kΩ Output GND GND All resistor values are nominal. 2 6Ω Input POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 AM26LV31 LOW-VOLTAGE HIGH-SPEED QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS201E – MAY 1995 – REVISED DECEMBER 1999 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6 V Input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6 V Output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6 V Package thermal impedance, θJA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” 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 Supply voltage, VCC 3 3.3 3.6 High-level input voltage, VIH 2 UNIT V V Low-level input voltage, VIL 0.8 V High-level output current, IOH –30 mA Low-level output current, IOL 30 mA 70 °C Operating free-air temperature, TA 0 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 AM26LV31 LOW-VOLTAGE HIGH-SPEED QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS201E – MAY 1995 – REVISED DECEMBER 1999 electrical characteristics over recommended operating supply-voltage and free-air temperature ranges (unless otherwise noted) PARAMETER TEST CONDITIONS VIK VOH Input clamp voltage High-level output voltage II = –18 mA VIH = 2 V, VOL |VOD| Low-level output voltage VIL = 0.8 V, VOC Common-mode output voltage ∆|VOC| Change in magnitude of common-mode output voltage‡ IO Output current with power off VO = –0.25 V or 6 V, IOZ Off-state (high-impedance state) output current IOH = –12 mA IOH = 12 mA Differential output voltage‡ MIN 1.85 TYP† MAX UNIT –1.5 V 2.3 0.8 0.95 1.5 1.3 1.55 V 1.05 V V 1.8 V ±0.2 V VCC = 0 ±100 µA VO = –0.25 V or 6 V, G = 0.8 V or G = 2 V ±100 µA 10 µA RL = 100 Ω IIH IIL High-level input current Low-level input current VCC = 0 or 3 V, VCC = 3.6 V, VI = 5.5 V VI = 0 IOS Short-circuit output current VCC = 3.6 V, ICC Supply current (all drivers) VI = VCC or GND, –10 µA VO = 0 –200 mA No load 100 µA Power dissipation capacitance (all drivers)§ Cpd No load 160 pF † All typical values are at VCC = 3.3 V and TA = 25°C. ‡ ∆|VOD| and ∆|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low level. § Cpd determines the no-load dynamic current consumption. IS = Cpd × VCC × f + ICC switching characteristics, VCC = 3.3 V, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX 4 8 12 ns 4 8 12 ns 0.3 1 V/ns See Figure 3 10 20 ns See Figure 4 10 20 ns Output-disable time from high level See Figure 3 10 20 ns tPLZ Output-disable time from low level See Figure 4 10 20 ns tsk(p) tsk(o) Pulse skew f = 32 MHz, See Note 4 0.5 1.5 ns Skew limit f = 32 MHz, See Note 5 1.5 ns tPLH tPHL Propagation delay time, low- to high-level output tt SR Transition time (tr or tf) Slew rate, single-ended output voltage See Note 3 and Figure 2 tPZH tPZL Output-enable time to high level Output-enable time to low level tPHZ Propagation delay time, high- to low-level output See Figure 2 3 UNIT ns tsk(lim) Skew limit (device to device) f = 32 MHz, See Note 6 3 ns NOTES: 3. Slew rate is defined by: 90% V OH V OL 10% V OH V OL SR , the differential slew rate of V OD is 2 SR. tr 4. Pulse skew is defined as the |tPLH – tPHL| 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 devices. + 4 ǒ * Ǔ* ǒ * Ǔ POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 AM26LV31 LOW-VOLTAGE HIGH-SPEED QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS201E – MAY 1995 – REVISED DECEMBER 1999 PARAMETER MEASUREMENT INFORMATION RL/2 Y Z A VOD2 G RL/2 VOC G Figure 1. Differential and Common-Mode Output Voltages Y A Generator (see Note B) VCC Z CL = 15 pF (see Note A) RL = 100 Ω VO VOD 50 Ω VO G G TEST CIRCUIT VCC Input 50% 50% A 0V tPHL tPLH Z Output, VO Y PROPAGATION DELAY TIMES 90% 10% Y VOH 90% 10% tr tf tf tr VOL Output, VO Z 90% 90% 10% 10% VOH VOL RISE AND FALL TIMES NOTES: A. CL includes probe and jig capacitance. B. The input pulse is supplied by a generator having the following characteristics: PRR = 32 MHz, ZO ≈ 50 Ω, 50% duty cycle, tr and tf ≤ 2 ns. Figure 2. Test Circuit and Voltage Waveforms, tPHL and tPLH POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 AM26LV31 LOW-VOLTAGE HIGH-SPEED QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS201E – MAY 1995 – REVISED DECEMBER 1999 PARAMETER MEASUREMENT INFORMATION S1 Y A VCC Z Output CL = 15 pF (see Note A) RL = 110 Ω G Generator (see Note B) 50 Ω G VCC (see Note C) TEST CIRCUIT VCC 50% Input 50% 0V tPHZ tPZH 0.3 V VOH Output 50% Voff ≈ 0 VOLTAGE WAVEFORMS NOTES: A. CL includes probe and jig capacitance. B. The input pulse is supplied by a generator having the following characteristics: PRR = 1 MHz, ZO = 50 Ω, 50% duty cycle, tr and tf (10% to 90%) ≤ 2 ns. C. To test the active-low enable G, ground G and apply an inverted waveform to G. Figure 3. Test Circuit and Voltage Waveforms, tPZH and tPHZ 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 AM26LV31 LOW-VOLTAGE HIGH-SPEED QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS201E – MAY 1995 – REVISED DECEMBER 1999 PARAMETER MEASUREMENT INFORMATION VCC Y A VCC RL = 110 Ω S1 Z Output CL = 15 pF (see Note A) G Generator (see Note B) G 50 Ω VCC (see Note C) TEST CIRCUIT VCC Input 50% 50% 0V tPLZ tPZL Voff ≈ VCC Output 50% VOL VOLTAGE WAVEFORMS 0.3 V NOTES: A. CL includes probe and jig capacitance. B. The input pulse is supplied by a generator having the following characteristics: PRR = 1 MHz, ZO = 50 Ω, 50% duty cycle, tr and tf (10% to 90%) ≤ 2 ns. C. To test the active-low enable G, ground G and apply an inverted waveform to G. Figure 4. Test Circuit and Voltage Waveforms, tPZL and tPLZ POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 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. 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