NSC DS26LV32AT

DS26LV32AT
3V Enhanced CMOS Quad Differential Line Receiver
General Description
Features
The DS26LV32A is a high speed quad differential CMOS receiver that meets the requirements of both TIA/EIA-422-B
and ITU-T V.11. The CMOS DS26LV32AT features typical
low static ICC of 9 mA which makes it ideal for battery powered and power conscious applications. The TRI-STATE ®
enables, EN and EN*, allow the device to be active High or
active Low. The enables are common to all four receivers.
n
n
n
n
The receiver output (RO) is guaranteed to be High when the
inputs are left open. The receiver can detect signals as low
as ± 200 mV over the common mode range of ± 10V. The receiver outputs (RO) are compatible with TTL and LVCMOS
levels.
n
n
n
n
n
n
n
n
n
n
Connection Diagram
Low Power CMOS design (30 mW typical)
Interoperable with existing 5V RS-422 networks
Industrial and Military Temperature Range
Conforms to TIA/EIA-422-B (RS-422) and ITU-T V.11
Recommendation
3.3V Operation
± 7V Common Mode Range @ VID = 3V
± 10V Common Mode Range @ VID = 0.2V
Receiver OPEN input failsafe feature
Guaranteed AC Parameter:
Maximum Receiver Skew: 4 ns
Maximum Transition Time: 10 ns
Pin compatible with DS26C32AT
32 MHz Toggle Frequency
> 6.5k ESD Tolerance (HBM)
Available in SOIC and Cerpack Packaging
Standard Microcircuit Drawing (SMD) 5962-98585
Truth Table
Inputs
Output
EN
Enables
EN*
RI+–RI−
RO
L
H
X
Z
All Other
VID ≥ +0.2V
H
Combinations of
VID ≤ −0.2V
L
Enable Inputs
Open†
H
Dual-In-Line Package
† Open, not terminated
L = Logic Low
H = Logic High
X = Irrelevant
Z = TRI-STATE
DS012908-1
Top View
Order Number DS26LV32ATM or DS26LV32AW
See NS Package Number M16A or W16A
TRI-STATE ® is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation
DS012908
www.national.com
DS26LV32AT 3V Enhanced CMOS Quad Differential Line Receiver
April 1999
Absolute Maximum Ratings (Note 1)
Storage Temperature Range
Lead Temperature Range Soldering
(4 Sec.)
ESD Ratings (HBM, 1.5 kΩ, 100 pF)
Receiver Inputs and Enables
Other Pins
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (VCC)
−0.5V to +7V
Enable Input Voltage (EN, EN*)
−0.5V to VCC +0.5V
± 14V
Receiver Input Voltage (VID: RI+, RI−)
Receiver Input Voltage
± 14V
(VCM: RI+, RI−)
Receiver Output Voltage (RO)
−0.5V to VCC +0.5V
± 25 mA Maximum
Receiver Output Current (RO)
Maximum Package Power Dissipation @ +25˚C
M Package
1190 mW
W Package
1087 mW
Derate M Package 9.8 mW/˚C above +25˚C
Derate W Package 7.3 mW/˚C above +25˚C
−65˚C to +150˚C
+260˚C
≥ 6.5 kV
≥ 2 kV
Recommended Operating
Conditions
Supply Voltage (VCC)
Min
Typ
Max
Units
3.0
3.3
3.6
V
Operating Free Air Temperature Range (TA)
DS26LV32AT
−40
+25
+85
˚C
DS26LV32AW
−55
+25
+125
˚C
Electrical Characteristics (Notes 2, 3)
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified.
Symbol
VTH
Parameter
Differential Input Threshold
Conditions
VOUT = VOH or
VOL
VCM = −0.5V to
+5.5V, TA =
-55˚C to +125˚C
(Note 9)
VHY
Hysteresis
VIH
Minimum High Level
RI+,
RI−
Min
Typ
Max
Units
−200
± 17.5
+200
mV
+200
mV
-200
VCM = 1.5V
35
mV
2.0
Input Voltage
VIL
Pin
VCM = −7V to
+7V, TA =
-40˚C to +85˚C
V
EN,
EN*
Maximum Low Level
0.8
V
Input Voltage
RIN
IIN
Input Resistance
VIN = −7V, +7V, TA = -40˚C to
+85˚C (Other Input = GND)
5.0
VIN = −0.5V, +5.5V, TA = -55˚C to
+125˚C (Other Input = GND) (Note
9)
5.0
Input Current
VIN = +10V
(Other Input = 0V,
VIN = +3V
Power On, or
VIN = 0.5V
VCC = 0V)
RI+,
RI−
0
1.1
0
0.27
mA
−0.02
mA
VIN = −3V
0
−0.43
0
−1.26
VIN = 5.5V
TA = -55˚C to
+125˚C (Note
9)
2
kΩ
kΩ
VIN = −10V
VIN = −0.5V
www.national.com
TA = -40˚C to
+85˚C
8.5
1.8
mA
mA
−2.2
mA
0
-1.8
mA
0
1.8
mA
Electrical Characteristics (Notes 2, 3)
(Continued)
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified.
Symbol
Parameter
IEN
Input Current
VOH
High Level Output Voltage
Conditions
VIN = 0V to VCC
Pin
Min
Typ
EN,
EN*
IOH = −6 mA, VID = +1V
2.4
Max
Units
±1
µA
3
V
VCC −0.1
V
IOH = −6 mA, VID = OPEN
VOH
High Level Output Voltage
IOH = −100 µA, VID = +1V
IOH = − 100 µA, VID = OPEN
VOL
Low Level Output Voltage
IOL = +6 mA, VID = −1V
IOZ
Output TRI-STATE Leakage
VOUT = VCC or GND
Current
EN = VIL, EN* = VIH
ISC
Output Short Circuit Current
VO = 0V, VID ≥ |200 mV| (Note 4)
ICC
Power Supply Current
No Load, All
RI+, R1− =
OPEN, EN,
EN* = VCC or
GND
TA = -40˚C to
+85˚C
RO
0.13
−10
VCC
0.5
V
± 50
µA
−35
−70
mA
9
15
mA
20
mA
TA = -55˚C to
+125˚C
Switching Characteristics - Industrial (Notes 3, 7, 10, 11)
Over Supply Voltage and -40˚C to +85˚C Operating Temperature range, unless otherwise specified.
Symbol
tPHL
Parameter
Propagation Delay
High to Low
tPLH
Conditions
CL = 15 pF, VCM = 1.5V
(Figures 1, 2 )
Propagation Delay
Min
Typ
Max
Units
6
17.5
35
ns
6
17.8
35
ns
Low to High
tr
Rise Time (20% to 80%)
4.1
10
ns
tf
Fall Time (80% to 20%)
3.3
10
ns
tPHZ
Disable Time
40
ns
tPLZ
Disable Time
40
ns
tPZH
Enable Time
40
ns
tPZL
Enable Time
40
ns
tSK1
Skew, |tPHL − tPLH| (Note 5)
4
ns
tSK2
Skew, Pin to Pin (Note 6)
0.6
4
ns
tSK3
Skew, Part to Part (Note 7)
7
17
fMAX
Maximum Operating
Frequency (Note 8)
CL = 50 pF, VCM = 1.5V
(Figures 3, 4 )
CL = 15 pF, VCM = 1.5V
CL = 15 pF, VCM = 1.5V
3
0.3
32
ns
MHz
www.national.com
Switching Characteristics - Military (Notes 10, 11)
Over Supply Voltage and -55˚C to +125˚C Operating Temperature range, unless otherwise specified.
Symbol
tPHL
Parameter
Propagation Delay
High to Low
tPLH
Conditions
CL = 50 pF, VCM = 1.5V
(Figures 1, 2 )
Propagation Delay
Min
Max
Units
6
45
ns
6
45
ns
50
ns
Low to High
tPHZ
Disable Time
tPLZ
Disable Time
50
ns
tPZH
Enable Time
50
ns
tPZL
Enable Time
50
ns
tSK1
Skew, |tPHL − tPLH| (Note 5)
6
ns
tSK2
Skew, Pin to Pin (Note 6)
6
ns
CL = 50 pF, VCM = 1.5V
(Figures 3, 4 )
CL = 50 pF, VCM = 1.5V
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 VID.
Note 3: All typicals are given for: VCC = +3.3V, TA = +25˚C.
Note 4: Short one output at a time to ground. Do not exceed package.
Note 5: tSK1 is the |tPHL – tPLH| of a channel.
Note 6: tSK2 is the maximum skew between any two channels within a device, either edge.
Note 7: tSK3 is the difference in propagation delay times between any channels of any devices. This specification (maximum limit) applies to devices within VCC
± 0.1V of one another,and a Delta TA = ± 5˚C (between devices) within the operating temperature range. This parameter is guaranteed by design and characterization.
Note 8: All channels switching, Output Duty Cycle criteria is 40%/60% measured at 50%. Input = 1V to 2V, 50% Duty Cycle, tr/tf ≤ 5 ns. This parameter is guaranteed
by design and characterization.
Note 9: This parameter does not meet the TIA/EIA-422-B specification.
Parameter Measurement Information
DS012908-2
FIGURE 1. Receiver Propagation Delay and Transition Time Test Circuit (Notes 10, 11)
www.national.com
4
Parameter Measurement Information
(Continued)
DS012908-3
Note 10: Generator waveform for all tests unless otherwise specified: f = 1 MHz, Duty Cycle = 50%, ZO = 50Ω, tr ≤ 10 ns, tf ≤ 10 ns.
Note 11: CL includes probe and jig capacitance.
Note 12: For military grade product, tr ≤ 6ns and tf ≤ 6ns.
Note 13: For military grade product the measure point is 1/2 VCC for tPLH, tPHL, tPZL, and tPZH
FIGURE 2. Receiver Propagation Delay and Transition Time Waveform (Notes 10, 11, 12, 13)
DS012908-4
FIGURE 3. Receiver TRI-STATE Test Circuit
DS012908-5
FIGURE 4. Receiver TRI-STATE Output Enable and Disable Waveforms (Notes 10, 11, 12, 13)
5
www.national.com
Power Decoupling Recommendations:
Typical Application Information
Bypass caps must be used on power pins. High frequency
ceramic (surface mount is recommended) 0.1 µF in parallel
with 0.01 µF at the power supply pin. A 10 µF or greater solid
tantalum or electrolytic should be connected at the power
entry point on the printed circuit board.
General application guidelines and hints for differential drivers and receivers may be found in the following application
notes:
AN-214, AN-457, AN-805, AN-847, AN-903, AN-912, AN-916
DS012908-6
RT is optional although highly recommended to reduce reflection
DS012908-7
FIGURE 5. Typical Receiver Connections
DS012908-8
FIGURE 6. Typical Receiver Output Waveforms
DS012908-9
FIGURE 7. Typical Receiver Input Circuit
www.national.com
6
Typical Application Information
(Continued)
DS012908-10
FIGURE 8. Typical ICC vs Frequency
DS012908-11
FIGURE 9. Receiver IIN vs VIN (Power On or Power Off)
DS012908-12
FIGURE 10. IOL vs VOL
7
www.national.com
Typical Application Information
(Continued)
DS012908-13
FIGURE 11. IOH vs VOH
www.national.com
8
Physical Dimensions
inches (millimeters) unless otherwise noted
Order Number DS26LV32ATM
NS Package Number M16A
9
www.national.com
DS26LV32AT 3V Enhanced CMOS Quad Differential Line Receiver
Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
Order Number DS26LV32AW
NS Package Number W16A
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:
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.
National Semiconductor
Corporation
Americas
Tel: 1-800-272-9959
Fax: 1-800-737-7018
Email: [email protected]
www.national.com
National Semiconductor
Europe
Fax: +49 (0) 1 80-530 85 86
Email: [email protected]
Deutsch Tel: +49 (0) 1 80-530 85 85
English Tel: +49 (0) 1 80-532 78 32
Français Tel: +49 (0) 1 80-532 93 58
Italiano Tel: +49 (0) 1 80-534 16 80
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.
National Semiconductor
Asia Pacific Customer
Response Group
Tel: 65-2544466
Fax: 65-2504466
Email: [email protected]
National Semiconductor
Japan Ltd.
Tel: 81-3-5639-7560
Fax: 81-3-5639-7507
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.