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Part: 5962-8752301PA
Category:
Interface and Interconnect
-> RS-422/RS-423
Description: DS9636A - RS-423 Dual Programmable Slew Rate Line Driver, Package: Cerdip, Pin Nb=8
Company: National Semiconductor Corporation
Datasheet: Download 5962-8752301PA datasheet File size : 231 kB
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Datasheet text preview:
DS9636A RS-423 Dual Programmable Slew Rate Line Driver
May 1998
DS9636A RS-423 Dual Programmable Slew Rate Line Driver
General Description
The DS9636A is a TTL/CMOS compatible, dual, single ended line driver which has been specifically designed to satisfy the requirements of EIA Standard RS-423. The DS9636A is suitable for use in digital data transmission systems where signal wave shaping is desired. The output slew rates are jointly controlled by a single external resistor connected between the wave shaping control lead (WS) and ground. This eliminates any need for external filtering of the output signals. Output voltage levels and slew rates are independent of power supply variations. Current-limiting is provided in both output states. The DS9636A is designed for nominal power supplies of ± 12V. Inputs are TTL compatible with input current loading low enough (1/10 UL) to be also compatible with CMOS logic. Clamp diodes are provided on the inputs to limit transients below ground.
Features
n n n n n Programmable slew rate limiting Meets EIA Standard RS-423 Commercial or extended temperature range Output short circuit protection TTL and CMOS compatible inputs
Connection Diagram
8-Lead DIP
DS009620-1
Top View Order Number DS9636ACN, See NS Package Number N08E For Complete Military Product Specifications, refer to the appropriate SMD or MDS. Order Number DS9636AJ/883 See NS Package Number J08A
© 1998 National Semiconductor Corporation
DS009620
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Ceramic DIP Molded DIP Lead Temperature Ceramic DIP (Soldering, 60 seconds) Molded DIP (Soldering, 10 seconds) -65°C to +175°C -65°C to +150°C 300°C 265°C
Maximum Power Dissipation* at 25°C (Note 5) Cavity Package 1560 mW Molded Package 1300 mW V+ Lead Potential to Ground Lead V- to +15V V- Lead Potential to Ground Lead +0.5V to -15V V+ Lead Potential to V- Lead 0V to +30V ± 15V Output Potential to Ground Lead Output Source Current -150 mA Output Sink Current 150 mA
Recommended Operating Conditions
Characteristics Min Positive Supply Voltage (V+) Negative Supply Voltage (V-) Operating Temperature (T A) Wave Shaping Resistance (R
WS)
DS9636AM Typ 12 -12 25 Max 13.2 -10.8 125 500 Min 10.8 -13.2 0 10 10.8 -13.2 -55 10
DS9636AC Typ 12 -12 25 Max 13.2 -10.8 70 1000
Units V V °C k
Electrical Characteristics (Notes 2, 3)
Over recommended operating temperature, supply voltage and wave shaping resistance ranges unless otherwise specified Symbol VOH1 VOH2 VOH3 VOL1 VOL2 VOL3 RO IOS+ IOS- ICEX VIH VIL VIC IIL IIH I+ I- Output Leakage Current Input Voltage HIGH Input Voltage LOW Input Clamp Diode Voltage Input Current LOW Input Current HIGH Positive Supply Current Negative Supply Current II = 15 mA VI = 0.4V VI = 2.4V VI = 5.5V VCC = ± 12V, RL = , RWS = 100 k, VI = 0V VCC = ± 12V, RL = , RWS = 100 k, VI = 0V -18 -1.5 -80 -1.1 -16 1.0 10 13 -13 10 100 18 mA mA Output Resistance Output Short Circuit Current (Note 4) Output Voltage LOW Parameter Output Voltage HIGH Conditions RL to GND (RL = ) RL to GND (RL = 3.0 k) RL to GND (RL = 450) RL to GND (RL = ) RL to GND (RL = 3.0 k) RL to GND (RL = 450) 450 RL VO = 0V, VI = 0V VO = 0V, VI = 2.0V VO = ± 6.0V, Power-Off Min 5.0 5.0 4.0 -6.0 -6.0 -6.0 -150 15 -100 2.0 0.8 Typ 5.6 5.6 5.5 -5.7 -5.6 -5.4 25 -60 60 Max 6.0 6.0 6.0 -5.0 -5.0 -4.0 50 -15 150 +100 Units V V V V V V mA mA µA V V V V µA
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 for the DS9636AM and across the 0°C to +70°C range for the DS9636AC. All typicals are given for V CC = 5V and TA = 25°C. Note 3: All currents into the device pins are positive; all currents out of the device pins are negative. All voltages are reference to ground unless otherwise specified. Note 4: Only one output at a time should be shorted. Note 5: Ratings apply to ambient temperature at 25°C. Above this temperature, derate J and N packages 10.4 mW/°C.
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Switching Characteristics
VCC = ± 12V ± 10%, TA = 25°C, see AC Test Circuit Symbol tr Parameter Rise Time Condition RWS = 10 k RWS = 100 k RWS = 500 k RWS = 1000 k RWS = 10 k RWS = 100 k RWS = 500 k RWS = 1000 k Min 0.8 8.0 40 80 0.8 8.0 40 80 Typ 1.1 11 55 110 1.1 11 55 110 Max 1.4 14 70 140 1.4 14 70 140 µs µs Units
tf
Fall Time
Typical Performance Characteristics
Input/Output Transfer Characteristic vs Temperature Input Current vs Input Voltage Output Current vs Output Voltage (Power On)
DS009620-7
DS009620-8
DS009620-9
Output Current vs Output Voltage (Power Off)
Supply Current vs Temperature
Transition Time vs RWS
DS009620-10
DS009620-11
DS009620-12
DS009620-5
DS009620-4
CL includes jig and probe capacitance
VI Amplitude: 3.0V Offset: 0V Pulse Width: 500 µs PRR: 1.0 kHz tr = tf 10 ns
FIGURE 1. AC Test Circuit and Waveforms
3
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Typical Performance Characteristics
(Continued)
DS009620-6
FIGURE 2. RS-423 System Application
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4
Physical Dimensions
inches (millimeters) unless otherwise noted
Ceramic Dual-In-Line Package (J) Order Number DS9636AJ/883 NS Package Number J08A
Molded Dual-In-Line Package (N) Order Number DS9636ACN NS Package Number N08E
5
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