DS7831_11 TI1 | Alldatasheet
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DS7831,DS8832 DS7831/DS8832 Dual TRI-STATE Line Driver Literature Number: SNLS361A
Dual TRI-STATE® Line Driver General Description Through simple logic control, the DS7831/DS8832 can be used as either a quad single-ended line driver or a dual differential line driver. They are specifically designed for party line (bus-organized) systems. The DS8832 does not have the V CC clamp diodes found on the DS7831. The DS7831 is specified for operation over the −55˚C to +125˚C military temperature range. The DS8832 is specified for operation over the 0˚C to +70˚C temperature range.
Features
n Very low output impedance — high drive capability n 40 mA sink and source currents n Gating control to allow either single-ended or differential operation n High impedance output state which allows many outputs to be connected to a common bus line Connection and Logic Diagram TRI-STATE® is a registered trademark of National Semiconductor Corp. Dual-In-Line Package DS005800-1 Top View Order Number DS8832J or DS8832N See NS Package Number J16A or N16A For Complete Military 883 Specificatons, See RETS Data Sheet. Order Number DS7831J/883, DS7831W/883, See NS Package Number J16A or W16A May 1999 DS7831DS8832 Dual TRI-STATE Line Driver © 2001 National Semiconductor Corporation DS005800 www.national.com
(Shown for A Channels Only) Differential/ “A” Output Disable Single-Ended Input A1 Output A1 Input A2 Output A2 Mode Control 0 0 0 0 Logical “1” or Same as Logical “1” or Same as Logical “0” Input A1 Logical “0” Input A2 0 0 X 1 Logical “1” or Opposite of Logical “1” or Same as
1 X Logical “0” Input A1 Logical “0” Input A2
1 X High High
X 1 X X X Impedance X Impedance State State X = Don’t Care DS7831/DS8832 www.national.com 2
Absolute Maximum Ratings(Note 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage 7V Input Voltage 5.5V Output Voltage 5.5V Storage Temperature Range −65˚C to +150˚C Lead Temperature (Soldering, 4 sec.) 260˚C Maximum Power Dissipation (Note 1) at 25˚C Cavity Package 1433 mW Molded Package 1362 mW Operating Conditions Min Max Units Supply Voltage (VCC ) DS7831 4.5 5.5 V DS8831/DS8832 4.75 5.25 V Temperature (T DS7831 −55 +125 ˚C DS8832 0 +70 ˚C Note 1:Derate cavity package 9.6 mW/˚C above 25˚C; derate molded pack- age 10.9 mW/˚C above 25˚C. Electrical Characteristics(Notes 3, 4) Symbol Parameter Conditions Min Typ Max Units VIH Logical “1” Input Voltage VCC = Min 2.0 V VIL Logical “0” Input Voltage VCC = Min 0.8 V VOH Logical “1” Output Voltage DS7831 I O = −40 mA 1.8 2.3 V VCC = Min I O = −2 mA 2.4 2.7 V DS8832 I O = −40 mA 1.8 2.5 V IO = −5.2 mA 2.4 2.9 V VOL Logical “0” Output Voltage DS7831 I O = 40 mA 0.29 0.50 V VCC = Min I O = 32 mA 0.40 V DS8832 I O = 40 mA 0.29 0.50 V IO = 32 mA 0.40 V IIH Logical “1” Input Current VCC = Max DS7831, V IN = 5.5V 1 mA DS8832, VIN = 2.4V 40 µA IIL Logical “0” Input Current VCC = Max, VIN = 0.4V −1.0 −1.6 mA IOD Output Disable Current V CC = Max, VO = 2.4V or 0.4V −40 40 µA ISC Output Short Circuit Current VCC = Max, (Note 5) −40 −100 −120 mA ICC Supply Current V CC = Max in TRI-STATE 65 90 mA VCLI Input Diode Clamp Voltage VCC = 5.0V, TA = 25˚C, IIN = −12 mA −1.5 V VCLO Output Diode Clamp Voltage VCC = 5.0V, I OUT = −12 mA DS7831 −1.5 V TA = 25˚C DS8832 IOUT = 12 mA DS7831 V CC + 1.5 V Switching Characteristics TA = 25˚C, VCC = 5V, unless otherwise noted Symbol Parameter Conditions Min Typ Max Units tpd0 Propagation Delay to a Logical “0” from Inputs A1, A2, B1, B2 13 25 ns Differential Single-ended Mode Control to Outputs t pd1 Propagation Delay to a Logical “1” from Inputs A1, A2, B1, B2 13 25 ns Differential Single-ended Mode Control to Outputs t 1H Delay from Disable Inputs to High Impedance State (from Logical “1” (See Figure 4and Figure 5) 6 12 ns Level) t0H Delay from Disable Inputs to High Impedance State (from Logical “0” Level) 14 22 ns DS7831/DS8832 www.national.com3
Typical Performance Characteristics Propagation Delay from Input to Output (Channel 1) DS005800-5 Propagation Delay from Input to Output (Channel 1) DS005800-10 Propagation Delay from Input to Output (Channel 2) DS005800-11 Delay from Disable to High Impedance State DS005800-12 Delay from Disable to Low Impedance State DS005800-13 Propagation Delay vs Load Capacitance DS005800-14 Total Supply Current vs Frequency DS005800-15 Logical “1” Output Voltage vs Source Current DS005800-16 Logical “0” Output Voltage vs Sink Current DS005800-17 IOUT vs VOUT High Impedance Output State DS005800-18 Propagation Delay in Differential Mode DS005800-19 DS7831/DS8832 www.national.com 6
Typical Performance Characteristics(Continued) Switching Time Waveforms DS005800-6 DS005800-7 Input characteristic: Amplitude = 3.0V Frequency = 1.0 MHz, 50% duty cycle t r =tf≤ ns (10% to 90%) DS7831/DS8832 www.national.com7
Switching Time Waveforms(Continued) DS005800-8 FIGURE 4. DS7831/DS8832 www.national.com 8
Symbol Switch S1 Switch S2 C L tpd1 closed closed 50 pF tpd0 closed closed 50 pF t0H closed closed *5p F t1H closed closed *5p F tH0 closed open 50 pF tH1 open closed 50 pF *Jig capacitance FIGURE 5. DS7831/DS8832 www.national.com9
Physical Dimensionsinches (millimeters) unless otherwise noted Ceramic Dual-In-Line Package (J) Order Number DS7831J or DS8832J DS7831/DS8832 www.national.com 10
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 Email: support@nsc.com National Semiconductor Europe 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 Response Group Tel: 65-2544466 Fax: 65-2504466 Email: ap.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 DS8832N DS7831DS8832 Dual TRI-STATE 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.
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