AM26C31-EP QUADRUPLE DIFFERENTIAL LINE DRIVER www.ti.com SLLS871 – NOVEMBER 2007 • FEATURES 1 • • • • • • • • • • (1) Controlled Baseline – One Assembly – One Test Site – One Fabrication Site Extended Temperature Performance of –55°C to 125°C Enhanced Diminishing Manufacturing Sources (DMS) Support Enhanced Product-Change Notification Qualification Pedigree (1) 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 AM26C31... D PACKAGE Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits. DESCRIPTION/ORDERING INFORMATION 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. The AM26C31 is characterized for operation over extended temperature range of –55°C to 125°C. ORDERING INFORMATION (1) PACKAGE (2) TA –55°C to 125°C (1) (2) SOIC – D Reel of 2500 ORDERABLE PART NUMBER AM26C31MDREP TOP-SIDE MARKING 26C31EP For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. 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. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2007, Texas Instruments Incorporated 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. AM26C31-EP QUADRUPLE DIFFERENTIAL LINE DRIVER www.ti.com SLLS871 – NOVEMBER 2007 FUNCTION TABLE (each driver) ENABLES OUTPUT INPUT A G G Y H H X H L L H X L H H X L H L L X L L H X L H Z Z Z LOGIC DIAGRAM (POSITIVE LOGIC) SCHEMATICS OF INPUTS AND OUTPUTS EQUIVALENT OF EACH INPUT VCC 2 TYPICAL OF ALL OUTPUTS VCC Input Output GND GND Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated AM26C31-EP QUADRUPLE DIFFERENTIAL LINE DRIVER www.ti.com SLLS871 – NOVEMBER 2007 ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) MIN MAX VCC Supply voltage range (2) –0.5 7 V VI Input voltage range –0.5 VCC + 0.5 V VID Differential input voltage range –14 14 V VO Output voltage range –0.5 7 V IIK or IOK Input or output clamp current IO Output current mA 200 mA GND current –200 mA Package thermal impedance Operating virtual junction temperature Tstg Storage temperature range (4) mA ±150 TJ (2) (3) ±20 VCC current θJA (1) UNIT (3) (4) –65 73 °C/W 150 °C 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. All voltage values, except differential output voltage (VOD), are with respect to the network ground terminal. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. The package thermal impedance is calculated in accordance with JESD 51-7. RECOMMENDED OPERATING CONDITIONS MIN NOM MAX 4.5 5 5.5 UNIT VCC Supply voltage VID Differential input voltage VIH High-level input voltage VIL Low-level input voltage 0.8 V IOH High-level output current –20 mA IOL Low-level output current 20 mA TA Operating free-air temperature 125 °C Copyright © 2007, Texas Instruments Incorporated ±7 V 2 –55 V V Submit Documentation Feedback 3 AM26C31-EP QUADRUPLE DIFFERENTIAL LINE DRIVER www.ti.com SLLS871 – NOVEMBER 2007 ELECTRICAL CHARACTERISTICS over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS VOH High-level output voltage IO = –20 mA VOL Low-level output voltage IO = 20 mA |VOD| Differential output voltage magnitude MIN TYP (1) 2.2 3.4 MAX UNIT V 0.2 0.4 V RL = 100 Ω, See Figure 1 Δ|VOD| Change in magnitude of differential output voltage (2) RL = 100 Ω, See Figure 1 ±0.4 V 2 3.1 V VOC Common-mode output voltage RL = 100 Ω, See Figure 1 3 V Δ|VOC| Change in magnitude of common-mode output voltage (2) RL = 100 Ω, See Figure 1 ±0.4 V II Input current VI = VCC or GND ±1 µA IO(off) Driver output current with power off VCC = 0 IOS Driver output short-circuit current VO = 0 IOZ High-impedance off-state output current ICC Quiescent supply current CI Input capacitance (1) (2) (3) VO = 6 V 100 VO = –0.25 V µA –100 –170 VO = 2.5 V 20 VO = 0.5 V –20 mA µA IO = 0 VI = 0 V or 5 V 100 µA IO = 0 VI = 2.4 V or 0.5 V (3) 3.2 mA 6 pF All typical values are at VCC = 5 V and TA = 25°C. Δ|VOD| and Δ|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. 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 MIN TYP (1) MAX UNIT tPLH Propagation delay time, low- to high-level output S1 is open, See Figure 2 7 12 ns tPHL 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) Differential output rise and fall times S1 is open, See Figure 3 5 12 ns tPZH Output enable time to high level S1 is closed, See Figure 4 10 19 ns tPZL Output enable time to low level S1 is closed, See Figure 4 10 19 ns tPHZ 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 S1 is open, See Figure 2 100 Cpd (1) (2) 4 Power dissipation capacitance (each driver) (2) pF All typical values are at VCC = 5 V, TA = 25°C. Cpd is used to estimate the switching losses according to PD = Cpd × VCC2 × f, where f is the switching frequency. Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated AM26C31-EP QUADRUPLE DIFFERENTIAL LINE DRIVER www.ti.com SLLS871 – NOVEMBER 2007 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 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 Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 5 AM26C31-EP QUADRUPLE DIFFERENTIAL LINE DRIVER www.ti.com SLLS871 – NOVEMBER 2007 PARAMETER MEASUREMENT INFORMATION (continued) 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 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 6 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated AM26C31-EP QUADRUPLE DIFFERENTIAL LINE DRIVER www.ti.com SLLS871 – NOVEMBER 2007 PARAMETER MEASUREMENT INFORMATION (continued) Output C2 = 40 pF 0V 3V Enable Inputs (see Note B) C1 = 40 pF Input A C3 = 40 pF G 50 Ω 500 Ω 1.5 V S1 50 Ω Output G 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 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%, tr < 6 ns, and tf < 6 ns. C. Each enable is tested separately. Figure 4. Output Enable and Disable Time Waveforms and Test Circuit Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 7 AM26C31-EP QUADRUPLE DIFFERENTIAL LINE DRIVER www.ti.com SLLS871 – NOVEMBER 2007 TYPICAL CHARACTERISTICS SUPPLY CURRENT vs SWITCHING FREQUENCY 300 IIDD CC − Supply Current − mA 250 ÁÁ ÁÁ ÁÁ ÁÁ 200 150 100 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. 8 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated PACKAGE OPTION ADDENDUM www.ti.com 18-Sep-2008 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty AM26C31MDREP ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM V62/07647-01XE ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. 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