AM26C31 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS103I – DECEMBER 1990 – REVISED FEBRUARY 2002 D D D D D D D AM26C31M . . . J OR W PACKAGE AM26C31C/I/Q . . . D, DB, N, OR NS PACKAGE (TOP VIEW) Meets or Exceeds the Requirements of TIA/EIA-422-B and ITU Recommendation V.11 Low Power, ICC = 100 µA Typ Operates From a Single 5-V Supply High Speed, tPLH = tPHL = 7 ns Typ Low Pulse Distortion, tsk(p) = 0.5 ns Typ High Output Impedance in Power-Off Conditions Improved Replacement for AM26LS31 Available in Q-Temp Automotive – High-Reliability Automotive Applications – Configuration Control/Print Support – Qualification to Automotive Standards 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 AM26C31M . . . FK PACKAGE (TOP VIEW) 1Y 1A NC VCC 4A D description The AM26C31 is a differential line driver with complementary outputs, designed to meet the requirements of TIA/EIA -422-B and ITU (formerly CCITT). The 3-state outputs have high-current capability for driving balanced lines, such as twisted-pair or parallel-wire transmission lines, and they provide the high-impedance state in the power-off condition. The enable functions are common to all four drivers and offer the choice of an active-high (G) or active-low (G) enable input. BiCMOS circuitry reduces power consumption without sacrificing speed. 4 3 2 1 20 19 18 5 17 6 16 7 15 8 9 10 11 12 13 14 4Y 4Z NC G 3Z 2A GND NC 3A 3Y 1Z G NC 2Z 2Y NC – No internal connection The AM26C31C is characterized for operation from 0°C to 70°C, the AM26C31I is characterized for operation from –40°C to 85°C, the AM26C31Q is characterized for operation over the automotive temperature range of –40°C to 125°C, and the AM26C31M is characterized for operation over the full military temperature range of –55°C to 125°C. AVAILABLE OPTIONS PACKAGED DEVICES PLASTIC SMALL OUTLINE (D, NS) PLASTIC SHRINK SMALL OUTLINE (DB) PLASTIC DIP (N) CERAMIC CHIP CARRIER (FK) CERAMIC DIP (J) CERAMIC DUAL FLATPACK (W) 0°C to 70°C AM26C31CD AM26C31CNS AM26C31CDB — AM26C31CN — — — — –40°C to 85°C AM26C31ID AM26C31INS AM26C31IDB — AM26C31IN — — — — –40°C to 125°C AM26C31QD AM26C31QDB AM26C31QN — — — –55°C to 125°C — — — AM26C31MFK AM26C31MJ AM26C31MW TA The D package also is available taped and reeled. Add the suffix R to device type (e.g., AM26C31CDR). The DB and NS packages are only available taped and reeled. 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. Copyright 2002, 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. On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 AM26C31 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS103I – DECEMBER 1990 – REVISED FEBRUARY 2002 FUNCTION TABLE (each driver) 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) logic diagram (positive logic) G G 1A 2A 3A 4A 4 12 1 2 3 7 9 15 6 5 10 11 14 13 1Y 1Z 2Y 2Z 3Y 3Z 4Y 4Z schematics of inputs and outputs EQUIVALENT OF EACH INPUT TYPICAL OF ALL OUTPUTS VCC VCC 2 Input Output GND GND POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 AM26C31 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS103I – DECEMBER 1990 – REVISED FEBRUARY 2002 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V Input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V Differential input voltage range, VID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –14 V to 14 V Output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V Input or output clamp current, IIK or IOK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±150 mA VCC current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mA GND current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –200 mA Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Package thermal impedance, θJA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°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, except differential output voltage (VOD), are with respect to the network ground terminal. 2. The package thermal impedance is calculated in accordance with JESD 51-7. DISSIPATION RATING TABLE PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 125°C POWER RATING FK 1375 mW 11 mW/°C 275 mW J 1375 mW 11 mW/°C 275 mW W 1000 mW 8.0 mW/°C 200 mW recommended operating conditions MIN NOM MAX 4.5 5 5.5 UNIT VCC VID Supply voltage VIH VIL High-level input voltage Low-level input voltage 0.8 V IOH IOL High-level output current –20 V Low-level output current 20 V ±7 Differential input voltage TA V 2 AM26C31C Operating free-air free air temperature POST OFFICE BOX 655303 0 V 70 AM26C31I –40 85 AM26C31Q –40 125 AM26C31M –55 125 • DALLAS, TEXAS 75265 V °C 3 AM26C31 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS103I – DECEMBER 1990 – REVISED FEBRUARY 2002 electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS VOH VOL High-level output voltage Low-level output voltage IO = –20 mA IO = 20 mA |VOD| Differential output voltage magnitude RL = 100 Ω, See Figure 1 ∆|VOD| Change in magnitude of differential output voltage‡ RL = 100 Ω, See Figure 1 VOC ∆|VOC| Common-mode output voltage RL = 100 Ω, Change in magnitude of common-mode output voltage‡ RL = 100 Ω, II Input current VI = VCC or GND VO = 6 V VCC = 0 VO = –0.25 V VO = 0 IO(off) O( ff) Driver output current with power off IOS Driver output short-circuit current IOZ High impedance off-state High-impedance off state output current AM26C31C AM26C31I MIN TYP† 2.4 3.4 0.2 2 Quiescent supply current 0.4 V V ±0.4 V See Figure 1 3 V See Figure 1 ±0.4 V ±1 µA 100 –100 –30 –150 VO = 2.5 V VO = 0.5 V IO = 0 V 3.1 20 –20 VI = 0 V or 5 V ICC UNIT MAX VI = 2.4 V or 0 0.5 5V V, See Note 3 15 1.5 µA mA µA 100 µA 3 mA Ci Input capacitance 6 pF † All typical values are at VCC = 5 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. NOTE 3: This parameter is measured per input. All other inputs are at 0 or 5 V. switching characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS AM26C31C AM26C31I TYP† MAX tPLH tPHL Propagation delay time, low- to high-level output S1 is open, See Figure 2 3 7 12 ns Propagation delay time, high- to low-level output S1 is open, See Figure 2 3 7 12 ns tsk(p) Pulse skew time (|tPLH – tPHL|) S1 is open, See Figure 2 0.5 4 ns tr(OD), tf(OD) tPZH Differential output rise and fall times S1 is open, See Figure 3 5 10 ns Output enable time to high level S1 is closed, See Figure 4 10 19 ns tPZL tPHZ Output enable time to low level S1 is closed, See Figure 4 10 19 ns Output disable time from high level S1 is closed, See Figure 4 7 16 ns tPLZ Output disable time from low level S1 is closed, See Figure 4 7 16 ns Cpd Power dissipation capacitance (each driver) (see Note 4) S1 is open, See Figure 2 170 † All typical values are at VCC = 5 V and TA = 25°C. NOTE 4: Cpd is used to estimate the switching losses according to PD = Cpd × VCC2 × f, where f is the switching frequency. 4 UNIT MIN POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 pF AM26C31 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS103I – DECEMBER 1990 – REVISED FEBRUARY 2002 electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS VOH VOL High-level output voltage Low-level output voltage IO = –20 mA IO = 20 mA |VOD| Differential output voltage magnitude RL = 100 Ω, See Figure 1 ∆|VOD| Change in magnitude of differential output voltage‡ RL = 100 Ω, See Figure 1 VOC ∆|VOC| Common-mode output voltage RL = 100 Ω, Change in magnitude of common-mode output voltage‡ RL = 100 Ω, II Input current VI = VCC or GND VO = 6 V VCC = 0 VO = –0.25 V VO = 0 IO(off) O( ff) Driver output current with power off IOS Driver output short-circuit current IOZ High impedance off-state High-impedance off state output current Quiescent supply current MIN TYP† 2.2 3.4 0.2 2 V 0.4 V V ±0.4 V See Figure 1 3 V See Figure 1 ±0.4 V ±1 µA 100 –100 –170 20 –20 VI = 0 V or 5 V VI = 2.4 V or 0.5 V, See Note 3 IO = 0 UNIT MAX 3.1 VO = 2.5 V VO = 0.5 V IO = 0 ICC AM26C31Q AM26C31M µA mA µA 100 µA 3.2 mA Ci Input capacitance 6 pF † All typical values are at VCC = 5 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. NOTE 3: This parameter is measured per input. All other inputs are at 0 V or 5 V. switching characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS AM26C31Q AM26C31M MIN UNIT TYP† MAX tPLH tPHL Propagation delay time, low- to high-level output S1 is open, See Figure 2 7 12 ns Propagation delay time, high- to low-level output S1 is open, See Figure 2 6.5 12 ns tsk(p) Pulse skew time (|tPLH – tPHL|) S1 is open, See Figure 2 0.5 4 ns tr(OD), tf(OD) tPZH Differential output rise and fall times S1 is open, See Figure 3 5 12 ns Output enable time to high level S1 is closed, See Figure 4 10 19 ns tPZL tPHZ Output enable time to low level S1 is closed, See Figure 4 10 19 ns Output disable time from high level S1 is closed, See Figure 4 7 16 ns tPLZ Output disable time from low level S1 is closed, See Figure 4 7 16 ns Cpd Power dissipation capacitance (each driver) (see Note 4) S1 is open, See Figure 2 100 pF † All typical values are at VCC = 5 V and TA = 25°C. NOTE 4: Cpd is used to estimate the switching losses according to PD = Cpd × VCC2 × f, where f is the switching frequency. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 AM26C31 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS103I – DECEMBER 1990 – REVISED FEBRUARY 2002 PARAMETER MEASUREMENT INFORMATION RL/2 VOD2 RL/2 VOC Figure 1. Differential and Common-Mode Output Voltages C2 = 40 pF Input RL/2 C1 = 40 pF 500 Ω 1.5 V S1 C3 = 40 pF RL/2 See Note A TEST CIRCUIT 3V 1.3 V 0V Input A (see Note B) tPLH Output Y 50% tPHL 50% 1.3 V tsk(p) Output Z 50% tsk(p) 50% 1.3 V tPHL tPLH NOTES: A. C1, C2, and C3 include probe and jig capacitance. B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, duty cycle ≤ 50%, and tr, tf ≤ 6 ns. Figure 2. Propagation Delay Time and Skew Waveforms and Test Circuit 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 AM26C31 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS103I – DECEMBER 1990 – REVISED FEBRUARY 2002 PARAMETER MEASUREMENT INFORMATION C2 = 40 pF Input RL/2 C1 = 40 pF 500 Ω 1.5 V S1 C3 = 40 pF RL/2 See Note A TEST CIRCUIT 3V Input A (see Note B) Differential Output 0V 90% 90% 10% 10% tr(OD) tf(OD) VOLTAGE WAVEFORMS NOTES: A. C1, C2, and C3 include probe and jig capacitance. B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, duty cycle ≤ 50%, and tr, tf ≤ 6 ns. Figure 3. Differential-Output Rise- and Fall-Time Waveforms and Test Circuit POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 AM26C31 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS103I – DECEMBER 1990 – REVISED FEBRUARY 2002 PARAMETER MEASUREMENT INFORMATION Output C2 = 40 pF 0V 3V Enable Inputs (see Note B) Input A C1 = 40 pF C3 = 40 pF G G 50 Ω 500 Ω 1.5 V S1 50 Ω Output See Note A TEST CIRCUIT Enable G Input (see Note C) 3V 1.3 V 1.3 V Enable G Input 0V 1.5 V Output WIth 0 V to A Input VOL + 0.3 V 0.8 V VOL tPLZ tPZL VOH Output WIth 3 V to A Input VOH – 0.3 V 2V 1.5 V tPHZ tPZH VOLTAGE WAVEFORMS NOTES: A. C1, C2, and C3 includes probe and jig capacitance. B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, duty cycle ≤ 50%, tr < 6 ns, and tf < 6 ns. C. Each enable is tested separately. Figure 4. Output Enable- and Disable-Time Waveforms and Test Circuit 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 AM26C31 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS103I – DECEMBER 1990 – REVISED FEBRUARY 2002 TYPICAL CHARACTERISTICS SUPPLY CURRENT vs SWITCHING FREQUENCY 300 IIDD CC – Supply Current – mA 250 200 150 ÁÁ ÁÁ 100 VCC = 5 V TA = 25°C See Figure 2 S1 Open All Four Channels Switching Simultaneously N Package 50 0 0 5 10 15 20 25 30 35 40 f – Switching Frequency – MHz Figure 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 9 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. 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