DS9622 Dual Line Receiver General Description Features The DS9622 is a dual line receiver designed to discriminate a worst case logic swing of 2V from a ± 10V common mode noise signal or ground shift. A 1.5V threshold is built into the differential amplifier to offer a TTL compatible threshold voltage and maximum noise immunity. The offset is obtained by use of current sources and matched resistors. The DS9622 allows the choice of output states with the input open, without affecting circuit performance by use of S3. A 130Ω terminating resistor is provided at the input of each line receiver. An enable is also provided for each line receiver. The output is TTL compatible. The output high level can be increased to 12V by tying it to a positive supply through a resistor. The output circuits allow wired-OR operation. n n n n n n n n TTL compatible threshold voltage Input terminating resistors Choice of output state with inputs open TTL compatible output High common mode Wired-OR capability Enable inputs Logic compatible supply voltages Connection Diagram 14–Lead DIP DS009760-2 Top View For Complete Military 883 Specifications, see RETS Datasheet. Order Number DS9622ME/883, DS9622MJ/883 or DS9622MW/883 See NS Package Number E20A, J14A or W14B © 1999 National Semiconductor Corporation DS009760 www.national.com DS9622 Dual Line Receiver October 1993 Absolute Maximum Ratings (Note 1) Voltage Applied to Outputs for Output High State V− to GND Enable to GND If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering, 60 sec.) Internal Power Dissipation (Note 5) V+ to GND Input Voltage −65˚C to +175˚C −55˚C to +125˚C −0.5V to +13.2V −0.5V to −12V −0.5V to +15V Operating Conditions 300˚C 400 mW −0.5V to +7.0V ± 15V Min Max Supply Voltage, VCC 4.5 5.5 Units V Temperature, TA −55 +125 ˚C Electrical Characteristics (Notes 2, 3) Symbol VOL VOH ICEX IOS Parameter Output Voltage LOW Output Leakage Current V+ = 4.5V, V− = −9.0V, S3 = 0V, VDIFF = 1.0V, IOH = −0.2 mA, EN = Open V+ = 4.5V, V− = −11V, Output Short Circuit S3 = 0V, VDIFF = 1.0V, VO = 12V, EN = Open V+ = 5.0V, V− = −10V, Output Voltage HIGH Current (Note 4) IR(EN) Enable Input Leakage Current IF(EN) Enable Input Forward Current IF(+IN) IF(−IN) Conditions V+ = S3 = 4.5V, V− = −11V, VDIFF = 2.0V, IOL = 12.4 mA, EN = Open +Input Forward Current −Input Forward Current Min Max Units 0.4 V 2.8 VDIFF = 1.0V, VO = S3 = 0V, EN = Open V+ = S3 = 4.5V, V− = −11V, −3.1 IN = Open, EN = 4.0V V+ = 5.5V, V− = −9.0V V 200 µA −1.4 mA 5.0 µA −1.5 mA −2.3 mA −2.6 mA VI = Open, EN = S3 = 0V V+ = 5.0V, V− = −10V, VI+ = 0V, VI− = GND, EN = S3 = Open V+ = S3 = 5.0V, V− = −10V, VI+ = GND, VI− = 0V, EN = Open VIL(EN) VTH VCM Input Voltage LOW 4.5V ≤ V+ ≤ 5.5V, +25˚C 1.0 V −11V ≤ V− ≤ −9.0V, EN = Open +125˚C 0.7 V −55˚C 1.3 V 1.0 2.0 V 25˚C −10 +10 V 25˚C 91 Differential Input 4.5V, ≤ V+ ≤ 5.5V, Threshold Voltage −11V ≤ V− ≤ −9.0V, EN = Open V+ = 5.0V, V− = −10V, Common Mode Voltage 1.0V ≤ VDIFF ≤ 2.0V RT Terminating Resistance I+ Positive Supply Current I− Negative Supply Current www.national.com V+ = S3 = VI+ = 5.5V, V− = 11V, VI− = 0V 2 25˚C −11.1 215 Ω 22.9 mA mA Electrical Characteristics (Notes 2, 3) (Continued) Symbol Parameter SWITCHING CHARACTERISTICS TA = 25˚C tPLH Propagation Delay to High Level tPHL Propagation Delay to Low Level Conditions V+ = V− = 0V ≤ CL = (See Min RL = 3.9 kΩ 5.0V, −10V, VI ≤ 3.0V, 30 pF Figure 1) Max Units 50 ns 50 ns RL = 390Ω Note 1: “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 2: Unless otherwise specified Min/Max limits apply across the −55˚C to +125˚C temperature range. All typicals are given for VCC = 5V and TA = 25˚C. Note 3: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to ground unless otherwise specified. Note 4: Only one output at a time should be shorted. Note 5: Rating applies to ambient temperatures up to +125˚C. Above 125˚C ambient, derate linearity at 120˚C/W. Switching Time Test Circuit and Waveforms DS009760-4 DS009760-5 FIGURE 1. Equivalent Circuit DS009760-6 3 www.national.com Typical Applications When S3 is connected to V−, open inputs cause output to be high. When V+ = 5V, V− = −10V and S3 is connected to ground, open inputs cause output to be low. www.national.com 4 Physical Dimensions inches (millimeters) unless otherwise noted Ceramic Leadless Chip Carrier (LCC) Order Number DS9622ME/883 NS Package Number E20A 5 www.national.com Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Ceramic Dual-In-Line Package (J) Order Number DS9622MJ/883 NS Package Number J14A Lead Cerpack (W) Order Number DS9622MW/883 NS Package Number W14B www.national.com 6 DS9622 Dual Line Receiver Notes 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. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: [email protected] www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: [email protected] 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 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 Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: [email protected] National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 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.