QP26LS31
QP26LS32
QP26LS33
October 9, 2007
QP26LS31 – Quad High Speed Differential Line Driver
QP26LS32 – Quad Differential Line Receiver
(200mv input sensitivity over ± 7V input range)
QP26LS33 – Quad Differential Line Receiver
(500mv input sensitivity over ± 15V input range)
General Description
The QP26LSxx family of interface products were re-engineered in a modern wafer fabrication process to replace AMD
26LSxx devices. All features of the AMD devices were duplicated; the devices are “plug and play” compatible. The
circuit design and wafer fab process selected duplicates the electrical characteristics of the original devices, including
parasitic performance. “Failsafe” characteristics were duplicated for the line receivers.
The QP26LSxx family is designed to meet the requirements of RS-422, RS-423, Federal Standards 1020 and 1030 for
balanced and unbalanced digital data transmission.
The QP26LS31 is designed to provide unipolar differential drive to twisted-pair or parallel-wire transmission lines. The
device provides both enable and disable functions common to all four drivers. It features tri-state outputs and logical
OR-ed complementary enable inputs. The inputs are all LS compatible and are all one unit load.
The QP26LS32 features an input sensitivity of 200mV over the input voltage range of ±7V while the QP26LS33 features
an input sensitivity of 500mV over the input voltage range of ±15V. Both provide and enable and disable function
common to all four receivers. Both feature tri-state outputs with 8mA sink capability and incorporate a fail-safe input-
output relationship that keeps the outputs high when the inputs are open.
The family is constructed using Advanced Low-Power Schottky processing.
QP Semiconductor products are not authorized for use in any space applications. The inclusion of QP Semiconductor
products in space applications implies that the space application manufacturer assumes all risk of such use and in doing
so indemnifies QP Semiconductor against all charges.
2945 Oakmead Village Ct, Santa Clara, CA 95051
•
Phone:
(408) 737-0992
•
Fax:
(408) 736—8708
•
Internet:
www.qpsemi.com
QP26LS31, QP26LS32 & QP26LS33
Block Diagrams
QP26LS31
QP26LS32
QP26LS33
Connection Diagrams
DIP
QP26LS31
LCC
QP26LS32
QP26LS33
Absolute Maximum Ratings
Stresses above the AMR may cause permanent damage, extended operation at AMR may degrade performance and affect reliability
Condition
26LS31
Units
Notes
QP SEMI, 2945 Oakmead Village Court, Santa Clara, CA 95051
Page 2 of 6
QP26LS31, QP26LS32 & QP26LS33
Power Supply and Input Voltage
Output Voltage
Storage Temperature Range
Lead Temperature (soldering, 10 seconds)
Maximum Power Dissipation (P
D
)
Junction Temperature (T
J
)
26LS32 and 26LS33
Power Supply Voltage (V
CC
)
Common Mode Range
Differential Input Voltage
Enable Voltage
Output Sink Current
Storage Temperature Range
Power Dissipation (P
D
)
Lead Temperature (soldering, 10 seconds)
Junction Temperature (T
J
)
7.0
5.5
-65 to +150
+300
450
+150
Volts DC
Volts DC
ºC
ºC
mW
ºC
7.0
±25
±25
7.0
50
-65 to +150
500
+300
+150
Volts DC
Volts DC
Volts DC
Volts DC
mA
ºC
mW
ºC
ºC
Recommended Operating Conditions
Condition
26LS31
Supply Voltage Range (V
CC
)
Minimum High-Level Input Voltage (V
IH
)
Maximum Low-Level Input Voltage (V
IL
)
Ambient Operating Range (T
A
)
26LS32 and 26LS33
Supply Voltage Range (V
CC
)
Minimum High-Level Input Voltage (V
IH
)
Maximum Low-Level Input Voltage (V
IL
)
Ambient Operating Range (T
A
)
Input Hysteresis (V
HYST
)
Units
4.5 to 5.5
2.0
0.8
-55C to +125
Volts DC
Volts DC
Volts DC
ºC
Notes
/1
4.5 to 5.5
2.0
0.8
-55C to +125
50
Volts DC
Volts DC
Volts DC
ºC
mV Typical
/1
/1 – Maximum PD, Maximum TJ Are Not to Be Exceeded
TABLE I – ELECTRICAL PERFORMANCE CHARACTERISTICS
Test
Symbol
Conditions
-55ºC
≤TA≤+125ºC
Unless Otherwise Specified
Min
Max
Unit
26LS31
Output High Voltage
Output Low Voltage
Input High Voltage
Input Low Voltage
Input Low Current
V
OH
V
OL
V
IH
V
IL
I
IL
V
CC
= 4.5V, I
OH
= -20mA
V
CC
= 4.5V, I
OH
= 20mA
V
CC
= 4.5V
V
CC
= 5.5V
V
CC
= 5.5V, V
IN
= 0.4V
2.5
0.5
2.0
0.8
0.10
-0.36
V
V
V
V
mA
QP SEMI, 2945 Oakmead Village Court, Santa Clara, CA 95051
Page 3 of 6
QP26LS31, QP26LS32 & QP26LS33
TABLE I – ELECTRICAL PERFORMANCE CHARACTERISTICS
Test
Symbol
Conditions
-55ºC
≤TA≤+125ºC
Unless Otherwise Specified
Min
Max
Unit
Input High Current
Input Reverse Current
Off-State (high impedance)
Output Current
Input Clamp Voltage
Output Short Circuit Current
Power Supply Current
Propagation Delay,
Output to Output
Propagation Delay,
Input to Output
Output Disable Time,
ENABLE to OUTPUT
Output Enable Time,
ENABLE to OUTPUT
I
IH
I
I
I
O
V
I
I
OS
I
CC
t
SKEW
t
PLH
t
PHL
t
PLZ
t
PHL
t
PZL
t
PZH
V
CC
= 5.5V,V
IN
= 2.7V
V
CC
= 5.5V,V
IN
= 7.0V
V
CC
= 5.5V,V
O
= 2.5V
V
CC
= 5.5V, V
O
= 0.5V
V
CC
= 4.5V,I
IN
= -18mA
V
CC
= 5.5V
V
CC
= 5.5V
All outputs disabled
V
CC
= 5.0V 25ºC
C
L
= 30pf -55 & 125ºC
V
CC
= 5.0V 25ºC
C
L
= 30pf -55 & 125ºC
V
CC
= 5.0V 25ºC
C
L
= 30pf -55 & 125ºC
V
CC
= 5.0V 25ºC
C
L
= 30pf -55 & 125ºC
V
CC
= 5.0V 25ºC
C
L
= 30pf -55 & 125ºC
V
CC
= 5.0V 25ºC
C
L
= 30pf -55 & 125ºC
V
CC
= 5.0V 25ºC
C
L
= 30pf -55 & 125ºC
V
OUT
= V
OL
or V
OH
26LS32
-7V≤V
CM
≤+7V
26LS33
–15V≤V
CM
≤+15V
–15V≤V
CM
≤+15V
(one input ac ground)
(other input –15V≤V
IN
≤+15V)
-2.0
-0.01
20
0.1
20
-20
-1.5
μA
mA
μA
μA
V
mA
mA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
-30
-150
80
6.0
9.0
20
30
20
30
35
53
30
45
45
68
40
60
26LS32 and 26LS33
Differential Input Voltage
Sensitivity
Input Resistance
Input Current (under test)
Output High Voltage
Output Low Voltage
V
TH
R
IN
I
IN
V
OH
V
OL
-0.2
-0.5
6.0
+0.2
+0.5
2.3
V
V
kΩ
mA
V
V
IN
= +15V
Enable Low Voltage
Enable High Voltage
Enable Clamp Voltage
V
IL
V
IH
V
IC
V
CC
= 4.5V,∆V
IN
=1.0V,
V
ENABLEBAR
=0.8V,
I
OH
= -440μA
V
CC
= 4.5V,∆V
IN
=-1.0V,
V
ENABLEBAR
=0.8V,
I
OL
= 4mA
V
CC
= 4.5V,∆V
IN
=-1.0V,
V
ENABLEBAR
= 0.8V,
I
OL
= 8mA
V
CC
= 5.5V
V
CC
= 4.5V
V
CC
= 4.5V,I
IN
= -18mA
V
CC
= 5.5V
2.5
0.4
0.45
0.8
2.0
-1.5V
V
V
V
V
V
QP SEMI, 2945 Oakmead Village Court, Santa Clara, CA 95051
Page 4 of 6
QP26LS31, QP26LS32 & QP26LS33
TABLE I – ELECTRICAL PERFORMANCE CHARACTERISTICS
Test
Symbol
Conditions
-55ºC
≤TA≤+125ºC
Unless Otherwise Specified
Min
Max
Unit
Off-State (high impedance)
Output Current
Enable Low Current
Enable High Current
Sensitivity
Output Short Circuit Current
Supply Current
Enable Input High Current
Propagation Delay
Input to Output
I
O
I
IL
I
IH
I
OS
I
CC
I
I
T
PLH
T
PHL
V
CC
= 5.5V,V
O
= 2.4V
V
CC
= 5.5V,V
O
= 0.4V
V
IN
= 0.4V, V
CC
= 5.5V
V
IN
= 2.7V, V
CC
= 5.5V
V
O
= 0V,V
CC
= 5.5V,
,∆V
IN
= 1.0V
V
CC
= 5.5V,
Data Inputs = GND,
Outputs Disabled
V
IN
= 5.5, V
CC
= 5.5V
V
CC
= 5.0V, C
L
= 15pF
25ºC
-55ºC and 125ºC
25ºC
-55ºC and 125ºC
V
CC
= 5.0V, C
L
= 15pF
25ºC
-55ºC and 125ºC
25ºC
-55ºC and 125ºC
V
CC
= 5.0V, C
L
= 15pF
25ºC
-55ºC and 125ºC
25ºC
-55ºC and 125ºC
-15
20
-20
-0.36
20
-85
70
100
25
38
25
38
30
45
22
33
22
33
22
33
μA
μA
mA
μA
mA
mA
μA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Output Disable Time,
ENABLE to Output
T
PLZ
T
PHZ
Output Enable Time,
Enable to Output
T
PZL
T
PZH
Ordering Information
Military Part Number
5962-7802301M2A
5962-7802301MEA
5962-7802301MFA
5962-7802301Q2A
5962-7802001M2A
5962-7802001MEA
5962-7802001MFA
5962-7802002M2A
5962-7802002MEA
5962-7802002MFA
Package (Mil-Std-1835)
CQCC1-N20
GDIP1-T16 CDIP2-T16
GDIP2-F16 CDFP3-F16
CQCC1-N20
CQCC1-N20
GDIP1-T16 CDIP2-T16
GDIP2-F16 CDFP3-F16
CQCC1-N20
GDIP1-T16 CDIP2-T16
GDIP2-F16 CDFP3-F16
Generic
26LS31
26LS31
26LS31
26LS31
26LS32
26LS32
26LS32
26LS33
26LS33
26LS33
QP Semiconductor supports Source Control Drawing (SCD), die sales and custom package development for this product family.
Notes:
QP SEMI, 2945 Oakmead Village Court, Santa Clara, CA 95051
Page 5 of 6
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