DS7820A NSC | Alldatasheet

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n Operation from a single +5V logic supply n Input voltage range of±15V n Strobe low forces output to “1” state n High input resistance n Fanout of ten with TTL integrated circuits n Outputs can be wire OR’ed n Series 54/74 compatible Connection Diagram Dual-in-Line Package DS005797-2 Note 1:Pin 7 connected to bottom of cavity package. Top View Order Number DS7820AJ or DS8820AN See NS Package Number J14A or N14A For Complete Military 883 Specificatons, See RETS Data Sheet. Order Number DS7820AJ/883 See NS Package Number J14A or W14B May 1999 DS7820A/DS8820A Dual Line Receiver © 1999 National Semiconductor Corporation DS005797 www.national.com

Absolute Maximum Ratings(Note 3) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage 8.0V Common-Mode Voltage ±20V Differential Input Voltage ±20V Strobe Voltage 8.0V Output Sink Current 50 mA Storage Temperature Range −65˚C to 150˚C Maximum Power Dissipation (Note 2) at 25˚C Cavity Package Molded Package 1308 mW 1207 mW Lead Temperature (Soldering, 4 sec.) 260˚C Operating Conditions Min Max Units Supply Voltage (VCC ) DS7820A 4.5 5.5 V DS8820A 4.75 5.25 V Temperature (T DS7820A −55 +125 ˚C DS8820A 0 +70 ˚C Note 2:Derate cavity package 8.7 mW/˚C above 25˚C; derate molded pack- age 9.7 mW/˚C above 25˚C. Electrical Characteristics(Notes 4, 5, 6) Symbol Parameter Conditions Min Typ Max Units VTH Differential Threshold Voltage IOUT = −400 µA, −3V ≤ VCM ≤ +3V 0.06 0.5 V VOUT ≥ 2.5V −15V ≤ VCM ≤ +15V 0.06 1.0 V IOUT = +16 mA, −3V ≤ VCM ≤ +3V −0.08 −0.5 V VOUT ≤ 0.4V −15V ≤ VCM ≤ +15V −0.08 −1.0 V R I− Inverting Input Resistance −15V ≤ VCM ≤ +15V 3.6 5 k Ω R I+ Non-Inverting Input Resistance −15V≤ VCM ≤ +15V 1.8 2.5 k Ω R T Line Termination Resistance T A = 25˚C 120 170 250 Ω II− Inverting Input Current V CM = 15V 3.0 4.2 mA VCM = 0V 0 −0.5 mA VCM = −15V −3.0 −4.2 mA II+ Non-Inverting Input Current V CM = 15V 5.0 7.0 mA VCM = 0V −1.0 −1.6 mA VCM = −15V −7.0 −9.8 mA ICC Power Supply Current One Side Only IOUT = Logical “0” V DIFF = −1V V CM = 15V 3.9 6.0 mA VCM = −15V 9.2 14.0 mA VDIFF = −0.5V, VCM = 0V 6.5 10.2 mA VOH Logical “1” Output Voltage I OUT = −400 µA, VDIFF = 1V 2.5 4.0 5.5 V VOL Logical “0” Output Voltage I OUT = +16 mA, VDIFF = −1V 0 0.22 0.4 V VSH Logical “1” Strobe Input Voltage IOUT = +16 mA, VOUT ≤ 0.4V, VDIFF = −3V 2.1 V VSL Logical “0” Strobe Input Voltage IOUT = −400 µA, VOUT ≥ 2.5V, VDIFF = −3V 0.9 V ISH Logical “1” Strobe Input Current VSTROBE = 5.5V, VDIFF = 3V 0.01 5.0 µA ISL Logical “0” Strobe Input Current VSTROBE = 0.4V, VDIFF = −3V −1.0 −1.4 mA ISC Output Short Circuit Current VO = 0V, VCC = 5.5V, VSTROBE = 0V −2.8 −4.5 −6.7 mA Note 3:“Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. Except for “Operating Temperature Range” they are not meant to imply that the devices should be operated at these limits. The table of “Electrical Characteristics” provides conditions for actual device operation. Note 4:These specifications apply for 4.5V≤ VCC ≤ 5.5V, −15V≤ VCM ≤ 15V and −55˚C≤ TA ≤ +125˚C for the DS7820A or 4.75V≤ VCC ≤ 5.25V, 0˚C≤ TA ≤ +70˚C for the DS8820A unless otherwise specified. Typical values given are for VCC = 5.0V, TA = 25˚C and VCM = 0V unless stated differently. Note 5:All currents into device pins shown as positive, out of device pins as negative, all voltages referenced to ground unless otherwise noted. All values shown as max or min on absolute value basis. Note 6:Only one output at a time should be shorted. www.national.com 2

TA = 25˚C, VCC = 5V, unless otherwise noted Symbol Parameter Conditions Min Typ Max Units tpd0 Propagation Delay, Differential Input to “0” Output R L = 400 Ω ,C L = 15 pF, seeFigure 1 30 45 ns tpd1 Propagation Delay, Differential Input to “1” Output 27 40 ns tpd0 Propagation Delay, Strobe Input to “0” Output 16 25 ns tpd1 Propagation Delay, Strobe Input to “1” Output 18 30 ns AC Test Circuit and Waveforms DS005797-7 Note 7:*Includes Jig and Probe Capacitance DS005797-8 A = Differential Input to “0” Output B = Differential Input to “1” Output C = Strobe Input to “0” Output D = Strobe Input to “1” Output FIGURE 1. www.national.com3

Typical Performance Characteristics Supply Voltage Sensitivity DS005797-6 Common-Mode Voltage Sensitivity DS005797-9 Temperature Sensitivity DS005797-10 Transfer Function DS005797-11 Termination Resistance DS005797-12 Input Characteristics DS005797-13 Power Supply Current DS005797-14 Internal Power Dissipation DS005797-15 Output Voltage Levels DS005797-16 Differential Input Delays DS005797-17 Strobe Delays DS005797-18 Noise Rejection DS005797-19 www.national.com 4

Note 8:Schematic shows one-half of unit. Differential Line Driver and Receiver DS005797-3 Note 9:Optional to control response time. Single Ended (EIA-RS232C) Receiver with Hysteresis www.national.com5

Typical Applications(Continued) DS005797-4 DS005797-5 (Output= “1” for Open Input) www.national.com 6

Physical Dimensionsinches (millimeters) unless otherwise noted Ceramic Dual-In-Line Package (J) Order Number DS7820AJ or DS7820AJ/883 www.national.com7

Physical Dimensionsinches (millimeters) unless otherwise noted (Continued) 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. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.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: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com Molded Dual-In-Line Package (N) Order Number DS8820AN DS7820A/DS8820A Dual Line Receiver 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.