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Details, datasheet, quote on part number:uUA9638CD
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| Part: | uUA9638CD |
| Category: | Analog & Mixed-Signal Processing => Amplifiers => Differential Amplifiers |
| Description: | Dual High-speed Differential Line Driver |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download uUA9638CD datasheet File size : 80 kB |
| Request For quote: | Find where to buy uUA9638CD
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Datasheet text preview:
uA9638C DUAL HIGH-SPEED DIFFERENTIAL LINE DRIVER
SLLS112C OCTOBER 1980 REVISED APRIL 1994
D D D D D D
Meets or Exceeds ANSI Standard EIA / TIA-422-B Operates From a Single 5-V Power Supply Drives Loads as Low as 50 up to 15 Mbps TTL- and CMOS-Input Compatibility Output Short-Circuit Protection Interchangeable With National SemiconductorTM DS9638
D OR P PACKAGE (TOP VIEW)
VC C 1A 2A GND
1 2 3 4
8 7 6 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
8 7 6 5
logic diagram
2 8 7 6 5 1Y 1Z 2Y 2Z
1A
2
1Y 1Z 2Y 2Z
1A
2A
3
2A
3
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.
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.
Copyright © 1994, Texas Instruments Incorporated
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uA9638C DUAL HIGH-SPEED DIFFERENTIAL LINE DRIVER
SLLS112C OCTOBER 1980 REVISED APRIL 1994
schematics of inputs and outputs
EQUIVALENT OF EACH INPUT VCC TYPICAL OF ALL OUTPUTS VCC
4 k NOM
Input 9.6 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 PACKAGE D P TA = 25°C POWER RATING 725 mW 1000 mW DERATING FACTOR ABOVE TA = 25°C 5.8 mW/°C 8.0 mW/°C TA = 70°C POWER RATING 464 mW 640 mW
recommended operating conditions
MIN Supply voltage, VCC High-level input voltage, VIH Low-level input voltage, VIL High-level output current, IOH Low-level output current, IOL Operating free-air temperature, TA 0 4.75 2 0.8 50 50 70 NOM 5 MAX 5.25 UNIT V V V mA mA °C
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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 VOH VOL |VOD1| |VOD2| |VOD| VOC |VOC| Input clamp voltage High-level output voltage output voltage Low-level output voltage output voltage Magnitude of differential output voltage Magnitude of differential output voltage Change in magnitude of differential output voltage Common-mode output voltage§ Change in magnitude of common-mode common mode output voltage Output current with power off Input current High-level input current Low-level input current Short-circuit output current¶ VCC = 0 VCC = 5.25 V, VCC = 5.25 V, VCC = 5.25 V, VCC = 5.25 V, VO = 6 V VO = 0.25 V VO = 0.25 V to 6 V VI = 5.5 V VI = 2.7 V VI = 0.5 V VO = 0 50 0.1 0.1 , VCC = 4.75 V to 5.25 V, See Figure 1 RL = 100 , , TEST CONDITIONS VCC = 4.75 V, VCC = 4.75 V, , VIL = 0.8 V VCC = 4.75 V, , IOL = 40 mA VCC = 5.25 V, II = 18 mA VIH = 2 V, , VIH = 2 V, , IO = 0 2 ± 0.4 3 ± 0.4 100 100 ± 100 50 25 200 150 µA µA µA mA µA IOH = 10 mA IOH = 40 mA VIL = 0.8 V, , 2.5 2 0.5 2VOD2 MIN TYP 1 3.5 MAX 1.2 UNIT V V V V V V V V
IO II IIH IIL IOS
ICC Supply current (both drivers) VCC = 5.25 V, No load, All inputs at 0 V 45 65 mA All typical values are at VCC = 5 V and TA = 25°C. | VOD | and | 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, VOC, which is the average of the two output voltages with respect to ground, is called output offset voltage, VOS. ¶ 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) tt(OD) tsk(o) Differential output delay time Differential output transition time Output skew CL = 15 pF 15 pF, TEST CONDITIONS RL = 100 100 , See Figure 2 See Figure 2 Figure MIN TYP 10 10 1 MAX 20 20 UNIT ns ns ns
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