DS26LV3 National Semiconductor, DS26LV3 Datasheet

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DS26LV3

Manufacturer Part Number
DS26LV3
Description
3V Enhanced CMOS Quad Differential Line Receiver
Manufacturer
National Semiconductor
Datasheet

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© 1999 National Semiconductor Corporation
DS26LV31T
3V Enhanced CMOS Quad Differential Line Driver
General Description
The DS26LV31T is a high-speed quad differential CMOS
driver that meets the requirements of both TIA/EIA-422-B
and ITU-T V.11. The CMOS DS26LV31T features low static
I
and power conscious applications.
Differential outputs have the same V
the 5V version.
The EN and EN* inputs allow active Low or active High con-
trol of the TRI-STATE
all four drivers. Protection diodes protect all the driver inputs
against electrostatic discharge. Outputs have enhanced
ESD protection providing greater than 7 kV tolerance. The
driver and enable inputs (DI, EN, EN*) are compatible with
low voltage LVTTL and LVCMOS devices.
Connection Diagram
CC
TRI-STATE
of 100 µA MAX which makes it ideal for battery powered
Order Number DS26LV31TM or DS26LV31W
See NS Package Number M16A or W16A
®
is a registered trademark of National Semiconductor Corporation.
Dual-In-Line Package
®
outputs. The enables are common to
Top View
OD
guarantee ( 2V) as
DS012642
DS012642-1
Features
n Industrial product meets TIA/EIA-422-B (RS-422) and
n Military product conforms to TIA/EIA-422-B (RS-422)
n Interoperable with existing 5V RS-422 networks
n Industrial and Military temperature range
n Guaranteed V
n Balanced output crossover for low EMI (typical within
n Low power design (330 µW 3.3V static)
n ESD
n Guaranteed AC parameter:
n Pin compatible with DS26C31
n Available in SOIC and Cerpack packaging
n Standard Microcircuit Drawing (SMD) 5962-98584
Truth Table
L = Low logic state
X = Irrelevant
H = High logic state
Z = TRI-STATE
ITU-T V.11 recommendation
40 mV of 50% voltage level)
— Maximum driver skew: 2 ns
— Maximum transition time: 10 ns
EN
combinations of
L
enable inputs
7 kV on cable I/O pins (HBM)
Enables
All other
OD
EN*
of 2V min over operating conditions
H
Input
DI
X
H
L
DO+
Z
H
L
Outputs
www.national.com
March 1999
DO−
H
Z
L

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DS26LV3 Summary of contents

Page 1

... Enhanced CMOS Quad Differential Line Driver General Description The DS26LV31T is a high-speed quad differential CMOS driver that meets the requirements of both TIA/EIA-422-B and ITU-T V.11. The CMOS DS26LV31T features low static I of 100 µA MAX which makes it ideal for battery powered CC and power conscious applications. ...

Page 2

... V + 0.5V CC Recommended Operating ± ± 150 mA Conditions −0.5V to +7V Supply Voltage (V Operating Free Air Temperature Range (T 1226 mW DS26LV31T 1119 mW DS26LV31W Input Rise and Fall Time −65˚C to +150˚C (Note 2) (Note 3) Conditions R = (No Load) DO 100 ( Figure 1 ) DO− L ...

Page 3

Switching Characteristics - Industrial Over supply voltage and -40˚C to +85˚C operating temperature range, unless otherwise specified Sym Parameter t Differential Propagation Delay PHLD High to Low t Differential Propagation Delay PLHD Low to High t Differential Skew (same SKD ...

Page 4

Parameter Measurement Information FIGURE 2. Differential Driver Propagation Delay and Transition Time Test Circuit FIGURE 3. Differential Driver Propagation Delay and Transition Time Waveforms Note 11: Generator waveform for all tests unless otherwise specified MHz, Duty Cycle ...

Page 5

Parameter Measurement Information the input, then EN* = High If EN* is the input, then EN = Low FIGURE 4. Driver Single-Ended TRI-STATE Test Circuit FIGURE 5. Driver Single-Ended TRI-STATE Waveforms (Continued) DS012642-5 5 DS012642-6 www.national.com ...

Page 6

Typical Application Information General application guidelines and hints for differential driv- ers and receivers may be found in the following application notes: AN-214, AN-457, AN-805, AN-847, AN-903, AN-912, AN- 916 optional although highly recommended to reduce reflection. T ...

Page 7

... Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Molded Small Outline Package (M) Order Number DS26LV31TM NS Package Number M16A 7 www.national.com ...

Page 8

... 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. 16-Lead Ceramic Flatpack (W) Order Number DS26LV31W NS Package Number W16A 2. A critical component is any component of a life ...

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