DS9638 NSC | Alldatasheet
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Technical content
Features
n TTL and CMOS compatible inputs n Output short circuit protection n Input clamp diodes n Complementary outputs n Minimum output skew (<1.0 ns typical) n 50 mA output drive capability for 50Ω transmission lines n Meets EIA RS-422 specifications n Propagation delay of less than 10 ns n “Glitchless” differential output n Delay time stable with VCC and temperature variations (<2.0 ns typical) (Figure 3) n Extended temperature range Connection Diagram 8-Lead DIP DS009622-1 Top View Order Number DS9638CM or DS9638CN See NS Package Number M08A or N08E For Complete Military Product Specifications, refer to the appropriate SMD or MDS. Order Number DS9638MJ/883 See NS Package Number J08A May 1998 DS9638 RS-422 Dual High Speed Differential Line Driver © 1998 National Semiconductor Corporation DS009622 www.national.com
Absolute Maximum Ratings(Note 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Ceramic DIP −65˚C to +175˚C Molded DIP and SO-8 −65˚C to +150˚C Lead Temperature Ceramic DIP (Soldering, 60 sec.) 300˚C Molded DIP (Soldering, 10 sec.) 265˚C Maximum Power Dissipation (Note 1) at 25˚C Cavity Package 1300 mW Molded Package 930 mW V CC Lead Potential to Ground −5V to 7V Input Voltage −0.5V to +7V Recommended Operating Conditions DS9638M DS9638C Min Typ Max Min Typ Max Units Output Current HIGH (IOH ) −50 −50 mA Output Current LOW (IOL )5 0 4 0 5 0 m A Operating Temperature (TA) −55 25 125 0 25 70 ˚C Note 1:Derate cavity package 8.7 mW/˚C above 25˚C; derate molded DIP package 7.5 mW/˚C above 25˚C; derate SO package 6.5 mW˚C above 25˚C. Electrical Characteristics(Notes 3, 4) Over recommended operating temperature and supply voltage ranges, unless otherwise specified Symbol Parameter Conditions Min Typ Max Units VIH Input Voltage HIGH 2.0 V VIL Input Voltage LOW 0˚C to +70˚C 0.8 V VIC Input Clamp Voltage V CC = Min, II = −18 mA −1.0 −1.2 V VOH Output Voltage HIGH V CC = Min, VIH = VIH Min, VIL = VIL Max IOH = −10 mA 2.5 3.5 VIOH = −40 mA 2.0 VOL Output Voltage LOW V CC = Min, VIH = VIH Min, 0.5 V V IL = VIL Max,IOL = 40 mA II Input Current at Maximum V CC = Max, VI Max = 5.5V 50 µA Input Voltage IIH Input Current HIGH V CC = Max, VIH = 2.7V 25 µA IIL Input Current LOW V CC = Max, VIL = 0.5V −200 µA IOS Output Short Circuit Current V CC = Max, VO = 0V (Note 4) −50 −150 mA VT,V T Terminated Output Voltage See Figure 1 2.0 V VT–V T Output Balance 0.4 V VOS ,V OS Output Offset Voltage 3.0 V VOS –V OS Output Offset Balance 0.4 V IX Output Leakage Current T A = 25˚C 100 µA −0.25V < VX < 5.5V ICC Supply Current V CC = 5.5V, (Both Drivers) All input at 0V, 45 65 mA No Load Note 2:“Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The tables of “Electrical Characteristics provide conditions for actual device operation. Note 3:Unless otherwise specified min/max limits apply across the −55˚C to +125˚C temperature range for the DS9638M and across the 0˚C to +70˚C range for the DS9638C. All typicals are given for VCC = 5V and TA = 25˚C. Note 4:All currents into the device pins are positive; all currents out of the device pins are negative. All voltages are referenced to ground unless otherwise specified. Note 5:Only one output at a time should be shorted. www.national.com 2
Physical Dimensionsinches (millimeters) unless otherwise noted Ceramic Dual-In-Line Package (J) Order Number DS9638MJ/883 Ceramic Dual-In-Line Package (M) Order Number DS9638CM www.national.com5
Physical Dimensionsinches (millimeters) unless otherwise noted (Continued) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE- VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI- CONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or sys- tems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose fail- ure 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 in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 Molded Dual-In-Line Package (N) Order Number DS9638CN DS9638 RS-422 Dual High Speed 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 right at any time without notice to change said circuitry and specifications.