UA9638CDG4

uA9638C DUAL HIGH-SPEED DIFFERENTIAL LINE DRIVER SLLS112C − OCTOBER 1980 − REVISED APRIL 1994 D Meets or Exceeds ANSI Standard D D D D D D OR P PACKAGE (TOP VIEW) EIA/ TIA-422-B Operates From a Single 5-V Power Supply Drives Loads as Low as 50 Ω up to 15 Mbps TTL- and CMOS-Input Compatibility Output Short-Circuit Protection Interchangeable With National Semiconductor™ DS9638 VCC 1A 2A GND 1 8 2 7 3 6 4 5 1Y 1Z 2Y 2Z description The uA9638C is a dual high-speed differential line driver designed to meet ANSI Standard EIA/ TIA-422-B. The inputs are TTL and CMOS compatible and have input clamp diodes. Schottky-diode-clamped transistors are used to minimize propagation delay time. This device operates from a single 5-V power supply and is supplied in an 8-pin package. The uA9638 provides the current needed to drive low-impedance loads at high speeds. Typically used with twisted-pair cabling and differential receiver(s), base-band data transmission can be accomplished up to and exceeding 15 Mbps in properly designed systems. The uA9637A dual line receiver is commonly used as the receiver. For even faster switching speeds in the same pin configuration, see the SN75ALS191. The uA9638C is characterized for operation from 0°C to 70°C. logic symbol† 1A 2A 2 3 logic diagram 8 7 6 5 1A 1Y 1Z 2A 2Y 2 3 8 7 6 5 1Y 1Z 2Y 2Z 2Z † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. National Semiconductor is a trademark of National Semiconductor Corporation. Copyright © 1994, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 uA9638C DUAL HIGH-SPEED DIFFERENTIAL LINE DRIVER SLLS112C − OCTOBER 1980 − REVISED APRIL 1994 schematics of inputs and outputs EQUIVALENT OF EACH INPUT TYPICAL OF ALL OUTPUTS VCC VCC 4 kΩ NOM Input 9.6 Ω NOM Output GND absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: Voltage values except differential output voltages are with respect to network GND. DISSIPATION RATING TABLE 25°C TA = 25 C POWER RATING DERATING FACTOR ABOVE TA = 25°C 70°C TA = 70 C POWER RATING D 725 mW 5.8 mW/°C 464 mW P 1000 mW 8.0 mW/°C 640 mW PACKAGE recommended operating conditions Supply voltage, VCC High-level input voltage, VIH MIN NOM MAX UNIT 4.75 5 5.25 V 2 V Low-level input voltage, VIL 0.8 V High-level output current, IOH −50 mA Low-level output current, IOL 50 mA 70 °C Operating free-air temperature, TA 2 0 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 uA9638C DUAL HIGH-SPEED DIFFERENTIAL LINE DRIVER SLLS112C − OCTOBER 1980 − REVISED APRIL 1994 electrical characteristics over operating free-air temperature range (unless otherwise noted) PARAMETER VIK MIN TYP† MAX UNIT −1 −1.2 V IOH = − 10 mA 2.5 3.5 IOH = − 40 mA 2 TEST CONDITIONS Input clamp voltage VCC = 4.75 V, II = − 18 mA VOH High level output voltage High-level VCC = 4.75 V, VIL = 0.8 V VIH = 2 V, VOL Low level output voltage Low-level VCC = 4.75 V, IOL = 40 mA VIH = 2 V, |VOD1| Magnitude of differential output voltage VCC = 5.25 V, IO = 0 |VOD2| Magnitude of differential output voltage Δ|VOD| Change in magnitude of differential output voltage‡ VOC Common-mode output voltage§ Δ|VOC| Change in magnitude of common-mode output voltage‡ VIL = 0.8 V, Output current with power off 05 0.5 V 2VOD2 V 2 VCC = 4.75 V to 5.25 V, See Figure 1 VO = − 0.25 V VCC = 0 V RL = 100 Ω, VO = 6 V IO V ± 0.4 04 V 3 V 04 ± 0.4 V 0.1 100 −0.1 −100 μA ± 100 VO = − 0.25 V to 6 V II Input current VCC = 5.25 V, VI = 5.5 V 50 μA IIH High-level input current VCC = 5.25 V, VI = 2.7 V 25 μA IIL Low-level input current VCC = 5.25 V, VI = 0.5 V −200 μA VCC = 5.25 V, VO = 0 −150 mA VCC = 5.25 V, No load, 65 mA current¶ IOS Short-circuit output ICC Supply current (both drivers) −50 All inputs at 0 V 45 † All typical values are at VCC = 5 V and TA = 25°C. Δ | VOD | and Δ | VOC | are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low level or vice versa. § In Standard EIA-422-A, V , which is the average of the two output voltages with respect to ground, is called output offset voltage, V . OC OS ¶ Only one output at a time should be shorted, and duration of the short circuit should not exceed one second. ‡ switching characteristics, VCC = 5 V, TA = 25°C PARAMETER td(OD) Differential output delay time tt(OD) Differential output transition time tsk(o) Output skew TEST CONDITIONS CL = 15 pF, pF RL = 100 Ω, Ω See Figure 2 See Figure 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MIN TYP MAX 10 20 ns 10 20 ns 1 UNIT ns 3 uA9638C DUAL HIGH-SPEED DIFFERENTIAL LINE DRIVER SLLS112C − OCTOBER 1980 − REVISED APRIL 1994 PARAMETER MEASUREMENT INFORMATION 50 Ω VOD2 Input VOC 50 Ω Figure 1. Differential and Common-Mode Output Voltages 3V Input 1.5 V 1.5 V 0V Y Output Differential Output CL Generator (see Note A) td(OD) RL = 100 Ω 50 Ω td(OD) 90% 90% 10% 10% tt(OD) tt(OD) Z Output CL = 15 pF (see Note B) VOH Y Output 50% 50% tsk(o) tsk(o) VOL VOH 50% Z Output 50% VOL TEST CIRCUIT VOLTAGE WAVEFORMS NOTES: A. The input pulse generator has the following characteristics: ZO = 50 Ω, PRR ≤ 500 kHz, tw = 100 ns, tr = ≤ 5 ns. B. CL includes probe and jig capacitance. Figure 2. Test Circuit and Voltage Waveforms 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PACKAGE OPTION ADDENDUM www.ti.com 14-Aug-2021 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) UA9638CD ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-2-260C-1 YEAR 0 to 70 9638C UA9638CDE4 ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-2-260C-1 YEAR 0 to 70 9638C UA9638CDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR 0 to 70 9638C UA9638CDRG4 ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR 0 to 70 9638C UA9638CP ACTIVE PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 UA9638CP UA9638CPE4 ACTIVE PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 UA9638CP (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of