DS34LV87T NSC | Alldatasheet

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n Meets TIA/EIA-422-B (RS-422) and ITU-T V.11 recommendation n Interoperable with existing 5V RS-422 networks n Guaranteed VOD of 2V min over operating conditions n Balanced output crossover for low EMI (typical within 40 mV of 50% voltage level) n Low power design (330 µW @ 3.3V static) n ESD ≥ 7 kV on cable I/O pins (HBM) n Industrial temperature range n Guaranteed AC parameter: — Maximum driver skew: 2 ns — Maximum transition time: 10 ns n Pin compatible with DS26C31 n Available in SOIC packaging Connection Diagram Dual-In-Line Package 01264501 Top View Order Number DS34LV87TM See NS Package Number M16A Truth Table Enables Input Outputs EN DI DO+ DO− LX Z Z HH H L HL L H L = Low logic state X = Irrelevant H = High logic state Z = TRI-STATE TRI-STATE® is a registered trademark of National Semiconductor Corporation. November 2000 DS34LV87T Enhanced CMOS Quad Differential Line Driver © 2004 National Semiconductor Corporation DS012645 www.national.com

Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (V CC) −0.5V to +7V Enable Input Voltage (EN) −0.5V to V CC + 0.5V Driver Input Voltage (DI) −0.5V to V CC + 0.5V Clamp Diode Current ±20 mA DC Output Current, per pin ±150 mA Driver Output Voltage (Power Off: DO+, DO−) −0.5V to +7V Maximum Package Power Dissipation @+25˚C M Package 1226 mW Derate M Package 9.8 mW/˚C above +25˚C Storage Temperature Range −65˚C to +150˚C Lead Temperature Range (Soldering, 4 sec.) +260˚C ESD Ratings (HBM, 1.5k, 100 pF) Driver Outputs ≥ 7k V Other Pins ≥ 2.5 kV Recommended Operating Conditions Min Typ Max Units Supply Voltage (VCC) 3.0 3.3 3.6 V Operating Free Air Temperature Range (TA) DS34LV87T −40 25 +85 ˚C Input Rise and Fall Time 500 ns Electrical Characteristics (Notes 2, 3) Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol Parameter Conditions Pin Min Typ Max Units VOD1 Output Differential Voltage R L= ∞, (No Load) DO+, 3.3 4.0 V VOD2 Output Differential Voltage R L = 100Ω Figure 1 DO− 2 2.6 V ∆VOD2 Change in Magnitude of −400 7 400 mV Output Differential Voltage VOD3 Output Differential Voltage R L = 3900Ω (V.11), Figure 1(Note 7) 3.2 3.5 V VOC Common Mode Voltage R L = 100Ω Figure 1 1.5 2 V ∆VOC Change in Magnitude of −400 6 400 mV Common Mode Voltage IOZ TRI-STATE Leakage V OUT =V CC or GND ±0.5 ±20 µA Current Drivers Disabled ISC Output Short Circuit Current V OUT =0 V VIN =V CC or GND (Note 4) −40 −70 −150 mA IOFF Output Leakage Current V CC= 0V, VOUT = 3V 0.03 100 µA VCC = 0V, VOUT = −0.25V −0.08 −100 µA VIH High Level Input Voltage DI, 2.0 V CC V VIL Low Level Input Voltage EN GND 0.8 V IIH High Level Input Current V IN=V CC 10 µA IIL Low Level Input Current V IN = GND −10 µA VCL Input Clamp Voltage I IN = −18 mA −1.5 V ICC Power Supply Current No Load, V IN (all) = VCC or GND V CC 100 µA DS34LV87T www.national.com 2

should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation. Note 3: All typical values are given for V CC= 3.3V and T A = +25˚C. Note 4: Only one output shorted at a time. The output (true or complement) is configured High. Note 6: See TIA/EIA-422-B specifications for exact test conditions. Note 7: This specification limit is for compliance with TIA/EIA-422-B and ITU-T V.11. Note 8: Devices are at the same V CC and within 5˚C within the operating temperature range. Note 9: All channels switching, output duty cycle criteria is 40%/60% measured at 50%. This parameter is guaranteed by design and characterization. FIGURE 1. Differential Driver DC Test Circuit

FIGURE 7. Typical Driver Output Waveforms

Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Molded Small Outline Package (M) Order Number DS34LV87TM LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. National Semiconductor Americas Customer Support Center Email: new.feedback@nsc.com Tel: 1-800-272-9959 National Semiconductor Europe Customer Support Center Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 National Semiconductor Asia Pacific Customer Support Center Email: ap.support@nsc.com National Semiconductor Japan Customer Support Center Fax: 81-3-5639-7507 Email: jpn.feedback@nsc.com Tel: 81-3-5639-7560 www.national.com DS34LV87T Enhanced CMOS Quad Differential Line Driver National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the righ t at any time without notice to change said circuitry and specifications.