DS90LV027
LVDS Dual High Speed Differential Driver
General Description
Features
The DS90LV027 is a dual LVDS driver device optimized for
high data rate and low power applications. The DS90LV027
is a current mode driver allowing power dissipation to remain
low even at high frequency. In addition, the short circuit fault
current is also minimized. The device is in a 8-lead small
Outline Package. The DS90LV027 has a flow-through design for easy PCB layout. The differential driver outputs provides low EMI with its low output swings typically 340 mV.
Perfect for high speed transfer of clock and data. Pair with
any of National’s LVDS receivers.
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Ultra Low Power Dissipation
Operating Range above 155 Mbps†
Conforms to TIA/EIA-644 Standard
8-Lead SOIC Package Saves Space
VCM ± 1V center around 1.2V
Low Differential Output Swing Typical 340 mV
Power Off Protection (outputs in high impedance)
Note 1: †Maximum data rate may vary from application to application.
Connection Diagram
Dual-In-Line
DS100029-1
Order Number DS90LV027M
See NS Package Number M08A
DS90LV027 LVDS Dual High Speed Differential Driver
March 1997
Functional Diagram
DS100029-2
DS100029-3
© 1997 National Semiconductor Corporation
www.national.com
DS100029
PrintDate=1997/04/25 PrintTime=09:42:58 7995 ds100029 Rev. No. 2
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Absolute Maximum Ratings
(Note 2)
Lead Temperature Range
Soldering (4 Sec.)
ESD Rating
(HBM 1.5 kΩ, 100 pF) (Note 5)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (VCC)
−0.3V to +6V
Input Voltage (DI)
−0.3V to V
−0.3V to (VCC + 0.3V)
Voltage (DO ± )
Maximum Package Power Dissipation @ +25˚C
M Package
1190 mW
Derate M Package
9.5 mW/˚C above +25˚C
Storage Temperature Range
−65˚C to +150˚C
Electrical Characteristics
+260˚C
≥ 4.5 kV
Recommended Operating
Conditions
Min
3.0
0
Supply Voltage (VCC)
Temperature (TA)
Typ
3.3
25
Max
3.6
70
Units
V
˚C
(Note 3) (Note 4) (Note 8)
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified
Symbol
Parameter
Conditions
Pin
Min
Typ
Max
Units
DO+,
DO−
250
340
450
mV
0
10
35
mV
1.43
1.6
V
1.6
V
DIFFERENTIAL DRIVER CHARACTERISTICS
RL = 100Ω
(Figure 1)
VOD
Output Differential Voltage
∆VOD
VOD Magnitude Change
VOH
Output High Voltage
VOL
Output Low Voltage
0.9
1.09
VOS
Offset Voltage
0.9
1.25
∆VOS
Offset Magnitude Change
IOZD
TRI-STATE ® Leakage
IOXD
Power-off Leakage
IOSD
Output Short Circuit Current
VIH
Input High Voltage
VIL
Input Low Voltage
IIH
Input High Current
IIL
Input Low Current
VCL
Input Clamp Voltage
ICC
Power Supply Current
Switching Characteristics
0
5
25
mV
0
±1
±1
± 10
± 10
µA
−4
−6
mA
2.0
VCC
V
GND
0.8
V
± 10
± 10
µA
1
4
mA
1
7
mA
VO = VCC or GND
VO = VCC or GND
0
DI
±1
±1
VIN = 5.5V, 3.3V, or 2.4V
VIN = GND or 0.5V
ICL = −18 mA
VIN = VCC or
GND
No Load
RL = 100Ω
V
−1.5
µA
µA
−0.8
VCC
V
(Note 6)
Over Supply Voltage and Operating Temperature Ranges, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
RL = 100Ω, CL = 5 pF
(Figures 2, 3)
1.5
3.4
6
ns
1.5
3.5
6
ns
DIFFERENTIAL DRIVER CHARACTERISTICS
tPHLD
Differential Propagation Delay High to Low
tPLHD
Differential Propagation Delay Low to High
tSKD
Differential Skew, |tPHLD − tPLHD|
0
0.1
1.9
ns
tTLH
Transition Low to High Time
0
1
3
ns
tTHL
Transition High to Low Time
0
1
3
ns
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 table of “Electrical Characteristics” specifies conditions of device operation.
Note 3: Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground except VOD.
Note 4: All typicals are given for: VCC = +3.3V and TA = +25˚C.
Note 5: ESD Rating: HBM (1.5 kΩ, 100 pF) ≥ 4.5 kV
Note 6: CL includes probe and fixture capacitance.
Note 7: Generator waveform for all tests unless otherwise specified: f = 1 MHz, Zo = 50Ω, tr ≤ 6 ns, tf ≤ 6 ns (10%-90%).
Note 8: The DS90LV027 is a current mode device and only function with datasheet specification when a resistive load is applied to the drivers outputs.
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PrintDate=1997/04/25 PrintTime=09:43:01 7995 ds100029 Rev. No. 2
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Parameter Measurement Information
DS100029-4
FIGURE 1. Differential Driver DC Test Circuit
DS100029-5
FIGURE 2. Differential Driver Propagation Delay and Transition Time Test Circuit
DS100029-6
FIGURE 3. Differential Driver Propagation Delay and Transition Time Waveforms
Application Information
Truth Table
TABLE 1. Device Pin Descriptions
Pin #
Input/Output
DI
DO+
DO−
L
L
H
H
2 > DI > 0.8
H
X
L
X
H = Logic high level
L = Logic low level
X = indeterminant
Name
Description
2, 3
DI
TTL/CMOS driver input pins
6, 7
DO+
Noninverting driver output pin
5, 8
DO−
Inverting driver output pin
4
GND
Ground pin
1
VCC
Positive power supply pin, +3.3V
± 0.3V
3
PrintDate=1997/04/25 PrintTime=09:43:03 7995 ds100029 Rev. No. 2
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DS90LV027 LVDS Dual High Speed Differential Driver
Physical Dimensions
inches (millimeters)
Order Number DS90LV027M
NS Package Number M08A
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 OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
2. A critical component in any component of a life support
1. Life support devices or systems are devices or sysdevice or system whose failure to perform can be reatems which, (a) are intended for surgical implant into
sonably expected to cause the failure of the life support
the body, or (b) support or sustain life, and whose faildevice or system, or to affect its safety or effectiveness.
ure 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.
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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.
PrintDate=1997/04/25 PrintTime=09:43:04 7995 ds100029 Rev. No. 2
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