DS26F31MMD8 [TI]
QUAD LINE DRIVER, UUC, DIE;
| 型号： | DS26F31MMD8 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | QUAD LINE DRIVER, UUC, DIE 驱动 |
| 文件： | 总7页 (文件大小：245K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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May 1999
DS26F31M
Quad High Speed Differential Line Drivers
The DS26F31M offers optimum performance when used
with the DS26F32 Quad Differential Line Receiver.
General Description
The DS26F31 is a quad differential line driver designed for
digital data transmission over balanced lines. The DS26F31
meets all the requirements of EIA Standard RS-422 and
Federal Standard 1020. It is designed to provide unipolar
differential drive to twisted-pair or parallel-wire transmission
lines.
Features
n Military temperature range
n Output skew—2.0 ns typical
n Input to output delay—10 ns
n Operation from single +5.0V supply
n 16-lead ceramic DIP Package
n Outputs won’t load line when VCC = 0V
n Output short circuit protection
n Meets the requirements of EIA standard RS-422
n High output drive capability for 100Ω terminated
transmission lines
The DS26F31 offers improved performance due to the use
of state-of-the-art L-FAST bipolar technology. The L-FAST
technology allows for higher speeds and lower currents by
utilizing extremely short gate delay times. Thus, the
DS26F31 features lower power, extended temperature
range, and improved specifications.
The circuit provides an enable and disable function common
to all four drivers. The DS26F31M features TRI-STATE®
outputs and logical OR-ed complementary enable inputs.
The inputs are all LS compatible and are all one unit load.
Connection and Logic Diagrams
16-Lead Dual-In-Line Package
00961402
FIGURE 1. Logic Symbol
20-Lead Ceramic Leadless Chip Carrier (E)
00961401
Top View
For Complete Military Product Specifications,
refer to the appropriate SMD or MDS.
Order Number DS26F31ME/883, DS26F31MJ/883, or
DS26F31MW/883
See NS Package Numbers E20A, J16A, or W16A
00961407
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 2004 National Semiconductor Corporation
DS009614
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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
Input Voltage
Output Voltage
7.0V
7.0V
5.5V
Storage Temperature Range
Operating Range
DS26F31M
Ceramic DIP
−65˚C to +175˚C
300˚C
Lead Temperature
Temperature
Supply Voltage
−55˚C to +125˚C
4.5V to 5.5V
Ceramic DIP (Soldering, 60 sec.)
Maximum Power (Note 1) Dissipation at 25˚C
Cavity Package
Note 1: Derate cavity package 10 mW/˚C above 25˚C.
1500 mW
Electrical Characteristics (Notes 3, 4)
over operating range, unless otherwise specified
Symbol
VOH
Parameter
Output Voltage HIGH
Conditions
= Min, IOH = −20 mA
= Min, IOL = 20 mA
= Min
Min
Typ
3.2
Max
Units
V
V
V
V
V
V
V
V
2.5
CC
CC
CC
CC
CC
CC
CC
VOL
VIH
VIL
IIL
Output Voltage LOW
Input Voltage HIGH
Input Voltage LOW
Input Current LOW
Input Current HIGH
Input Reverse Current
Off State (High Impedance)
Output Current
0.32
0.5
V
2.0
V
= Max
0.8
−0.20
20
V
= Max, VI = 0.4V
= Max, VI = 2.7V
= Max, VI = 7.0V
−0.10
0.5
mA
µA
mA
µA
IIH
IIR
0.001
0.5
0.1
IOZ
VCC = Max
VO = 2.5V
VO = 0.5V
20
0.5
−20
−1.5
−150
50
VIC
Input Clamp Voltage
Output Short Circuit
Supply Current
V
V
V
V
V
= Min, II = −18 mA
−0.8
−60
V
CC
CC
CC
CC
CC
IOS
= Max (Note 5)
−30
mA
mA
mA
ns
ICCX
ICC
= Max, All Outputs Disabled
= Max, All Outputs Enabled
= 5.0V, TA = 25˚C,
40
tPLH
Input to Output
Input to Output
Output to Output
Enable to Output
Enable to Output
Enable to Output
Enable to Output
10
10
2.0
23
15
20
23
15
Load = (Notes 6, 7)
= 5.0V, TA = 25˚C,
tPHL
SKEW
tLZ
V
15
4.5
32
25
30
32
ns
ns
ns
ns
ns
ns
CC
Load = (Note 6)
= 5.0V, TA = 25˚C,
V
CC
Load = (Notes 6, 7)
V
C
V
C
V
= 5.0V, TA = 25˚C,
CC
= 10 pF
L
tHZ
= 5.0V, TA = 25˚C,
CC
= 10 pF
L
tZL
= 5.0V, TA = 25˚C,
CC
Load = (Note 6)
V = 5.0V, TA = 25˚C,
CC
tZH
Load = (Note 6)
Note 2: “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 3: Unless otherwise specified min/max limits apply across the −55˚C to +125˚C temperature range for the DS26F31M and across the O˚C to +70˚C range
for the DS26F31C. All typicals are given for V
= 5V and T = 25˚C.
CC
A
Note 4: All currents into the device pins are positive; all currents out of the device pins are negative. All voltages are referenced to ground unless otherwise
specified.
Note 5: Only one output at a time should be shorted.
Note 6: C = 30 pF, V = 1.3V to V = 1.3V, V = 0V to +3V (See AC Load Test Circuit for TRI-STATE Outputs).
PULSE
L
I
O
Note 7: Skew is defined as the difference in propagation delays between complementary outputs at the 50% point.
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2
Test Circuit and Timing Waveforms
00961403
FIGURE 2. AC Load Test Circuit for TRI-STATE Outputs
00961404
FIGURE 3. Propagation Delay (Notes 2, 4)
00961405
FIGURE 4. Enable and Disable Times (Notes 3, 4)
Note 8: Diagram shown for Enable Low. Switches S1 and S2 open.
Note 9: S1 and S2 of Load Circuit are closed except where shown.
Note 10: Pulse Generator for all Pulses: Rate ≤ 1.0 MHz, Z = 50Ω, t ≤ 6.0 ns, t ≤ 6.0 ns.
O
r
f
Note 11: C includes probe and jig capacitance.
L
3
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Typical Application
00961406
FIGURE 5. Typical Application
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4
Physical Dimensions inches (millimeters)
unless otherwise noted
20-Lead Ceramic Leadless Chip Carrier (E)
DS26F31ME/883
NS Package Number E20A
16-Lead Ceramic Dual-In-Line Package (J)
DS26F31MJ/883
NS Package Number J16A
5
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Ceramic Flatpak (W)
DS26F31MW/883
NS Package Number W16A
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