DS90LV027AH
DS90LV027AH High Temperature LVDS Dual Differential Driver
Literature Number: SNLS206
DS90LV027AH
High Temperature LVDS Dual Differential Driver
General Description
The DS90LV027AH is a dual LVDS driver device optimized
for high data rate and low power applications. The device is
designed to support data rates in excess of 600Mbps
(300MHz) utilizing Low Voltage Differential Signaling (LVDS)
technology. The DS90LV027AH is a current mode driver
allowing power dissipation to remain low even at high fre-
quency. In addition, the short circuit fault current is also
minimized.
The device is in a 8-lead small outline package. The
DS90LV027AH has a flow-through design for easy PCB
layout. The differential driver outputs provides low EMI with
its typical low output swing of 360 mV. It is perfect for high
speed transfer of clock and data. The DS90LV027AH can be
paired with its companion dual line receiver, the
DS90LV028AH, or with any of National’s LVDS receivers, to
provide a high-speed point-to-point LVDS interface.
Features
n−40˚C to +125˚C operating temperature range
n>600 Mbps (300MHz) switching rates
n0.3 ns typical differential skew
n0.7 ns maximum differential skew
n3.3V power supply design
nLow power dissipation (46 mW @3.3V static)
nFlow-through design simplifies PCB layout
nPower Off Protection (outputs in high impedance)
nConforms to TIA/EIA-644 Standard
n8-Lead SOIC package saves space
Connection Diagram
Dual-In-Line
20165101
Order Number DS90LV027AHM
See NS Package Number M08A
Functional Diagram
20165102
20165103
September 2005
DS90LV027AH High Temperature LVDS Dual Differential Driver
© 2005 National Semiconductor Corporation DS201651 www.national.com
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (V
CC
) −0.3V to +4V
Input Voltage (DI) −0.3V to +3.6V
Output Voltage (DO±) −0.3V to +3.9V
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
Lead Temperature Range Soldering
(4 sec.) +260˚C
ESD Ratings
(HBM 1.5 kΩ, 100 pF) ≥8kV
(EIAJ 0 Ω, 200 pF) ≥1000V
(CDM) ≥1000V
(IEC direct 330 Ω, 150 pF) ≥4kV
Recommended Operating
Conditions
Min Typ Max Units
Supply Voltage (V
CC
) 3.0 3.3 3.6 V
Temperature (T
A
) −40 25 +125 ˚C
Electrical Characteristics
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified. (Notes 2, 3, 7)
Symbol Parameter Conditions Pin Min Typ Max Units
DIFFERENTIAL DRIVER CHARACTERISTICS
V
OD
Output Differential Voltage R
L
= 100Ω
(Figure 1)
DO+,
DO−
250 360 450 mV
∆V
OD
V
OD
Magnitude Change 135mV
V
OH
Output High Voltage 1.4 1.6 V
V
OL
Output Low Voltage 0.9 1.1 V
V
OS
Offset Voltage 1.125 1.2 1.375 V
∆V
OS
Offset Magnitude Change 0 3 25 mV
I
OXD
Power-off Leakage V
OUT
=V
CC
or GND, V
CC
=0V ±1±10 µA
I
OSD
Output Short Circuit Current −5.7 −8 mA
V
IH
Input High Voltage DI 2.0 V
CC
V
V
IL
Input Low Voltage GND 0.8 V
I
IH
Input High Current V
IN
= 3.3V or 2.4V ±2±10 µA
I
IL
Input Low Current V
IN
= GND or 0.5V ±1±10 µA
V
CL
Input Clamp Voltage I
CL
= −18 mA −1.5 −0.6 V
I
CC
Power Supply Current No Load V
IN
=V
CC
or GND V
CC
814mA
R
L
= 100Ω14 20 mA
Switching Characteristics
Over Supply Voltage and Operating Temperature Ranges, unless otherwise specified. (Notes 3, 4, 5, 6)
Symbol Parameter Conditions Min Typ Max Units
DIFFERENTIAL DRIVER CHARACTERISTICS
t
PHLD
Differential Propagation Delay High to Low R
L
= 100Ω,C
L
= 15 pF 0.3 0.8 2.0 ns
t
PLHD
Differential Propagation Delay Low to High (Figure 2 and Figure 3) 0.3 1.1 2.0 ns
t
SKD1
Differential Pulse Skew |t
PHLD
−t
PLHD
| (Note 8) 0 0.3 0.7 ns
t
SKD2
Channel to Channel Skew (Note 9) 0 0.4 0.8 ns
t
SKD3
Differential Part to Part Skew (Note 10) 0 1.0 ns
t
SKD4
Differential Part to Part Skew (Note 11) 0 1.2 ns
t
TLH
Transition Low to High Time 0.2 0.5 1.0 ns
t
THL
Transition High to Low Time 0.2 0.5 1.0 ns
f
MAX
Maximum Operating Frequency (Note 12) 350 MHz
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 table of “Electrical Characteristics” specifies conditions of device operation.
Note 2: 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 3: All typicals are given for: VCC = +3.3V and TA= +25˚C.
Note 4: These parameters are guaranteed by design. The limits are based on statistical analysis of the device over PVT (process, voltage, temperature) ranges.
Note 5: CLincludes probe and fixture capacitance.
DS90LV027AH
www.national.com 2
Switching Characteristics (Continued)
Note 6: Generator waveform for all tests unless otherwise specified:f=1MHz, ZO=50Ω,t
r≤1 ns, tf≤1 ns (10%-90%).
Note 7: The DS90LV027AH is a current mode device and only function with datasheet specification when a resistive load is applied to the drivers outputs.
Note 8: tSKD1,|t
PHLD −t
PLHD|, is the magnitude difference in differential propagation delay time between the positive going edge and the negative going edge of
the same channel.
Note 9: tSKD2 is the Differential Channel to Channel Skew of any event on the same device.
Note 10: tSKD3, Differential Part to Part Skew, is defined as the difference between the minimum and maximum specified differential propagation delays. This
specification applies to devices at the same VCC and within 5˚C of each other within the operating temperature range.
Note 11: tSKD4, part to part skew, is the differential channel to channel skew of any event between devices. This specification applies to devices over recommended
operating temperature and voltage ranges, and across process distribution. tSKD4 is defined as |Max − Min| differential propagation delay.
Note 12: fMAX generator input conditions: tr=t
f<1 ns (0% to 100%), 50% duty cycle, 0V to 3V. Output criteria: duty cycle = 45%/55%, VOD >250mV, all channels
switching.
Parameter Measurement Information
20165104
FIGURE 1. Differential Driver DC Test Circuit
20165105
FIGURE 2. Differential Driver Propagation Delay and Transition Time Test Circuit
20165106
FIGURE 3. Differential Driver Propagation Delay and Transition Time Waveforms
DS90LV027AH
www.national.com3
Application Information
TABLE 1. Device Pin Descriptions
Pin # Name Description
2, 3 DI TTL/CMOS driver input pins
6, 7 DO+ Non-inverting driver output pin
5, 8 DO− Inverting driver output pin
4 GND Ground pin
1V
CC
Positive power supply pin, +3.3V ±0.3V
Typical Performance Curves
Output High Voltage vs
Power Supply Voltage
Output Low Voltage vs
Power Supply Voltage
20165107 20165108
Output Short Circuit Current vs
Power Supply Voltage
Differential Output Voltage
vs Power Supply Voltage
20165109 20165110
DS90LV027AH
www.national.com 4
Typical Performance Curves (Continued)
Differential Output Voltage
vs Load Resistor
Offset Voltage vs
Power Supply Voltage
20165111 20165112
Power Supply Current
vs Frequency
Power Supply Current vs
Power Supply Voltage
20165113 20165114
DS90LV027AH
www.national.com5
Typical Performance Curves (Continued)
Power Supply Current vs
Ambient Temperature
Differential Propagation Delay vs
Power Supply Voltage
20165115
20165116
Differential Propagation Delay vs
Ambient Temperature
Differential Skew vs
Power Supply Voltage
20165117
20165118
DS90LV027AH
www.national.com 6
Typical Performance Curves (Continued)
Differential Skew vs
Ambient Temperature
Transition Time vs
Power Supply Voltage
20165119 20165120
Transition Time vs
Ambient Temperature
20165121
DS90LV027AH
www.national.com7
Physical Dimensions inches (millimeters) unless otherwise noted
Order Number DS90LV027AHM
NS Package Number M08A
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.
For the most current product information visit us at www.national.com.
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 AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, and whose failure 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.
2. A critical component is any component of a life support
device or system whose failure to perform can be reasonably
expected to cause the failure of the life support device or
system, or to affect its safety or effectiveness.
BANNED SUBSTANCE COMPLIANCE
National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products
Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain
no ‘‘Banned Substances’’ as defined in CSP-9-111S2.
Leadfree products are RoHS compliant.
National Semiconductor
Americas Customer
Support Center
Email: new.feedback@nsc.com
Tel: 1-800-272-9959
National Semiconductor
Europe Customer Support Center
Fax: +49 (0) 180-530 85 86
Email: europe.support@nsc.com
Deutsch Tel: +49 (0) 69 9508 6208
English Tel: +44 (0) 870 24 0 2171
Français Tel: +33 (0) 1 41 91 8790
National Semiconductor
Asia Pacific Customer
Support Center
Email: ap.support@nsc.com
National Semiconductor
Japan Customer Support Center
Fax: 81-3-5639-7507
Email: jpn.feedback@nsc.com
Tel: 81-3-5639-7560
www.national.com
DS90LV027AH High Temperature LVDS Dual Differential Driver
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,
and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should
obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are
sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard
warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where
mandated by government requirements, testing of all parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and
applications using TI components. To minimize the risks associated with customer products and applications, customers should provide
adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,
or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information
published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a
warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual
property of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied
by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive
business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional
restrictions.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all
express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not
responsible or liable for any such statements.
TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably
be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing
such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products
and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be
provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in
such safety-critical applications.
TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are
specifically designated by TI as military-grade or "enhanced plastic."Only products designated by TI as military-grade meet military
specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at
the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.
TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are
designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated
products in automotive applications, TI will not be responsible for any failure to meet such requirements.
Following are URLs where you can obtain information on other Texas Instruments products and application solutions:
Products Applications
Audio www.ti.com/audio Communications and Telecom www.ti.com/communications
Amplifiers amplifier.ti.com Computers and Peripherals www.ti.com/computers
Data Converters dataconverter.ti.com Consumer Electronics www.ti.com/consumer-apps
DLP®Products www.dlp.com Energy and Lighting www.ti.com/energy
DSP dsp.ti.com Industrial www.ti.com/industrial
Clocks and Timers www.ti.com/clocks Medical www.ti.com/medical
Interface interface.ti.com Security www.ti.com/security
Logic logic.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defense
Power Mgmt power.ti.com Transportation and Automotive www.ti.com/automotive
Microcontrollers microcontroller.ti.com Video and Imaging www.ti.com/video
RFID www.ti-rfid.com
OMAP Mobile Processors www.ti.com/omap
Wireless Connectivity www.ti.com/wirelessconnectivity
TI E2E Community Home Page e2e.ti.com
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright ©2011, Texas Instruments Incorporated
