TI AM26C31IN Quadruple differential line driver Datasheet

AM26C31C, AM26C31I, AM26C31M
QUADRUPLE DIFFERENTIAL LINE DRIVERS
SLLS103G – DECEMBER 1990 – REVISED SEPTEMBER 1998
D
D
D
D
D
D
D
AM26C31C, AM26C31I . . . D, DB†, OR N PACKAGE
AM26C31M . . . J OR W PACKAGE
(TOP VIEW)
Meet or Exceed the Requirements of
TIA/EIA-422-B and ITU Recommendation
V.11
Low Power, ICC = 100 µA Typ
Operate From a Single 5-V Supply
High Speed, tPLH = tPHL = 7 ns Typ
Low Pulse Distortion, tsk(p) = 0.5 ns Typ
High Output Impedance in Power-Off
Conditions
Improved Replacement for AM26LS31
1A
1Y
1Z
G
2Z
2Y
2A
GND
description
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
VCC
4A
4Y
4Z
G
3Z
3Y
3A
† The DB package is only available left-ended taped
(order AM26C31IDBLE or AM26C31CDBLE).
The AM26C31C, AM26C31I, and AM26C31M are
four complementary-output line drivers designed
to meet the requirements of TIA/EIA -422-B and
ITU (formerly CCITT). The 3-state outputs have
high-current capability for driving balanced lines,
such as twisted-pair or parallel-wire transmission
lines, and they provide the high-impedance state
in the power-off condition. The enable function is
common to all four drivers and offers the choice of
an active-high or active-low enable input.
BiCMOS circuitry reduces power consumption
without sacrificing speed.
1Y
1A
NC
VCC
4A
AM26C31M . . . FK PACKAGE
(TOP VIEW)
1Z
G
NC
2Z
2Y
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
4Y
4Z
NC
G
3Z
2A
GND
NC
3A
3Y
The AM26C31C is characterized for operation
from 0°C to 70°C, the AM26C31I is characterized
for operation from – 40°C to 85°C, and the
AM26C31M is characterized for operation from
– 55°C to 125°C.
4
NC – No internal connection
FUNCTION TABLE
(each driver)
ENABLES
OUTPUTS
G
G
Y
H
H
X
H
L
L
H
X
L
H
H
X
L
H
L
L
X
L
L
H
X
L
H
Z
Z
INPUT
A
Z
H = high level, L = low level, X = irrelevant,
Z = high impedance (off)
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright  1998, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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AM26C31C, AM26C31I, AM26C31M
QUADRUPLE DIFFERENTIAL LINE DRIVERS
SLLS103G – DECEMBER 1990 – REVISED SEPTEMBER 1998
logic symbol†
G
G
1A
2A
3A
4A
4
logic diagram (positive logic)
≥1
G
EN
12
G
1A
2
1
3
6
7
5
10
9
11
14
15
13
1Y
2A
1Z
2Y
3A
2Z
4
12
2
1
3
6
7
5
10
9
11
3Y
3Z
4A
14
15
13
4Y
4Z
† This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
The terminal numbers shown are for the D, DB, J, N, and W packages.
schematics of inputs and outputs
EQUIVALENT OF EACH INPUT
TYPICAL OF ALL OUTPUTS
VCC
VCC
2
Input
Output
GND
GND
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1Y
1Z
2Y
2Z
3Y
3Z
4Y
4Z
AM26C31C, AM26C31I, AM26C31M
QUADRUPLE DIFFERENTIAL LINE DRIVERS
SLLS103G – DECEMBER 1990 – REVISED SEPTEMBER 1998
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
Input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V
Differential input voltage range, VID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –14 V to 14 V
Output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
Input or output clamp current, IIK or IOK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±150 mA
VCC current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mA
GND current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –200 mA
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values, except differential output voltage (VOD), are with respect to the network ground terminal.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
TA = 125°C
POWER RATING
D
DB
N
FK
J
W
950 mW
781 mW
1150 mW
1375 mW
1375 mW
1000 mW
7.6 mW/°C
6.2 mW/°C
9.2 mW/°C
11 mW/°C
11 mW/°C
8.0 mW/°C
608 mW
502 mW
736 mW
—
—
—
494 mW
409 mW
598 mW
—
—
—
—
—
—
275 mW
275 mW
200 mW
recommended operating conditions
MIN
Supply voltage, VCC
4.5
NOM
MAX
5
5.5
±7
Differential input voltage, VID
High-level input voltage, VIH
UNIT
V
V
2
V
Low-level input voltage, VIL
0.8
V
High-level output current, IOH
–20
mA
20
mA
Low-level output current, IOL
AM26C31C
Operating free-air temperature, TA
0
70
AM26C31I
–40
85
AM26C31M
–55
125
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°C
3
AM26C31C, AM26C31I, AM26C31M
QUADRUPLE DIFFERENTIAL LINE DRIVERS
SLLS103G – DECEMBER 1990 – REVISED SEPTEMBER 1998
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VOH
VOL
High-level output voltage
IO = – 20 mA
IO = 20 mA
|VOD|
Differential output voltage magnitude
∆|VOD|
Change in magnitude of differential output voltage‡
VOC
∆|VOC|
Common-mode output voltage
II
Input current
IO(
O(off)
ff)
Driver output current with power off
IOS
Driver output short-circuit current
Low-level output voltage
AM26C31C
AM26C31I
MIN
TYP†
2.4
3.4
V
0.2
2
RL = 100 Ω
Ω,
UNIT
MAX
0.4
3.1
V
See Figure 1
Change in magnitude of common-mode output voltage‡
VI = VCC or GND
VCC = 0,
VO = 6 V
VCC = 0,
VO = 0
IOZ
High impedance off
High-impedance
off-state
state output current
ICC
Quiescent supply current
–30
VI = 0 V or 5 V
IO = 0,,
See Note 2
VI = 2.4 V or 0.5 V,,
V
3
V
±0.4
V
±1
µA
–100
µA
–150
mA
20
µA
–20
µA
100
µA
3
mA
VO = 2.5 V
VO = 0.5 V
IO = 0,
±0.4
100
VO = – 0.25 V
V
15
1.5
Ci
Input capacitance
6
pF
† All typical values are at VCC = 5 V and TA = 25°C.
‡ ∆|VOD| and ∆|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low
level.
NOTE 2: This parameter is measured per input. All other inputs are at 0 or 5 V.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
tPLH
tPHL
Propagation delay time, low- to high-level output
tsk(p)
Pulse skew time (| tPLH – tPHL|)
tr(OD), tf(OD)
tPZH
Differential output rise and fall times
tPZL
tPHZ
Output enable time to low level
tPLZ
Output disable time from low level
Cpd
Power dissipation capacitance (each driver) (see
Note 3)
Propagation delay time, high- to low-level output
S1 is open,
S1 is open,
See Figure 2
See Figure 3
Output enable time to high level
Output disable time from high level
S1 is closed
closed,
S1 is open,
See Figure 4
See Figure 2
AM26C31C
AM26C31I
TYP†
MAX
3
7
12
ns
3
7
12
ns
0.5
4
ns
5
10
ns
10
19
ns
10
19
ns
7
16
ns
7
16
ns
170
† All typical values are at VCC = 5 V and TA = 25°C.
NOTE 3: Cpd is used to estimate the switching losses according to PD = Cpd × VCC2 × f, where f is the switching frequency.
4
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UNIT
MIN
pF
AM26C31C, AM26C31I, AM26C31M
QUADRUPLE DIFFERENTIAL LINE DRIVERS
SLLS103G – DECEMBER 1990 – REVISED SEPTEMBER 1998
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
VOH
VOL
High-level output voltage
|VOD|
Differential output voltage magnitude
∆|VOD|
Change in magnitude of differential
output voltage‡
MIN
IO = – 20 mA
IO = 20 mA
Low-level output voltage
2.2
RL = 100 Ω
Ω,
Common-mode output voltage
∆|VOC|
Change in magnitude of common-mode
output voltage‡
II
Input current
3.4
0.4
3.1
Driver output current with power off
IOS
Driver output short-circuit current
IOZ
High impedance off
High-impedance
off-state
state output current
VO = 2.5 V
VO = 0.5 V
Quiescent supply current
IO = 0,
IO = 0,
VCC = 0,
VO = 0
See Figure 1
±0.4
V
3
V
±0.4
V
±1
µA
100
VO = – 0.25 V
–100
VI = 0 V or 5 V
VI = 2.4 V or 0.5 V,
V
V
VI = VCC or GND
VCC = 0,
VO = 6 V
IO(
ff)
O(off)
UNIT
V
0.2
2
VOC
ICC
AM26C31M
TYP†
MAX
TEST CONDITIONS
µA
–170
mA
See Note 2
20
µA
–20
µA
100
µA
3.2
mA
Ci
Input capacitance
6
pF
† All typical values are at VCC = 5 V and TA = 25°C.
‡ ∆|VOD| and ∆|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low
level.
NOTE 2: This parameter is measured per input. All other inputs are at 0 V or 5 V.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
tPLH
tPHL
Propagation delay time, low- to high-level output
tsk(p)
Pulse skew time (| tPLH – tPHL|)
tr(OD), tf(OD)
tPZH
Differential output rise and fall times
tPZL
tPHZ
Output enable time to low level
tPLZ
Output disable time from low level
Cpd
Power dissipation capacitance (each driver) (see
Note 3)
Propagation delay time, high- to low-level output
S1 is open,
S1 is open,
See Figure 2
See Figure 3
Output enable time to high level
Output disable time from high level
S1 is closed
closed,
S1 is open,
See Figure 4
See Figure 2
AM26C31M
TYP†
MAX
UNIT
MIN
7
12
ns
6.5
12
ns
0.5
4
ns
5
12
ns
10
19
ns
10
19
ns
7
16
ns
7
16
ns
100
pF
† All typical values are at VCC = 5 V and TA = 25°C.
NOTE 3: Cpd is used to estimate the switching losses according to PD = Cpd × VCC2 × f, where f is the switching frequency.
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AM26C31C, AM26C31I, AM26C31M
QUADRUPLE DIFFERENTIAL LINE DRIVERS
SLLS103G – DECEMBER 1990 – REVISED SEPTEMBER 1998
PARAMETER MEASUREMENT INFORMATION
RL/2
VOD2
RL/2
VOC
Figure 1. Differential and Common-Mode Output Voltages
RL/2
C2
40 pF
500 Ω
1.5 V
C1
40 pF
Input
S1
RL/2
C3
40 pF
See Note A
TEST CIRCUIT
Input A
(see Note B)
3V
1.3 V
0V
tPLH
tPHL
Output Y
50%
50%
1.3 V
tsk(p)
tsk(p)
Output Z
50%
50%
1.3 V
tPHL
tPLH
NOTES: A. C1, C2, and C3 include probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, duty cycle ≤ 50%, and tr tf ≤ 6 ns.
Figure 2. Propagation Delay Time and Skew Waveforms and Test Circuit
6
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AM26C31C, AM26C31I, AM26C31M
QUADRUPLE DIFFERENTIAL LINE DRIVERS
SLLS103G – DECEMBER 1990 – REVISED SEPTEMBER 1998
PARAMETER MEASUREMENT INFORMATION
RL/2
C2
40 pF
500 Ω
1.5 V
C1
40 pF
Input
S1
RL/2
C3
40 pF
See Note A
TEST CIRCUIT
3V
Input A
(see Note B)
Differential
Output
0V
90%
90%
10%
10%
tr(OD)
tf(OD)
VOLTAGE WAVEFORMS
NOTES: A. C1, C2, and C3 include probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, duty cycle ≤ 50%, and tr, tf ≤ 6 ns.
Figure 3. Differential Output Rise and Fall Time Waveforms and Test Circuit
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AM26C31C, AM26C31I, AM26C31M
QUADRUPLE DIFFERENTIAL LINE DRIVERS
SLLS103G – DECEMBER 1990 – REVISED SEPTEMBER 1998
PARAMETER MEASUREMENT INFORMATION
Output
C2
40 pF
0V
3V
Inputs
(see Note B)
C1
40 pF
Input A
G
50 Ω
500 Ω
1.5 V
C3
40 pF
S1
50 Ω
Output
G
See Note A
TEST CIRCUIT
Enable G Input
(see Note C)
3V
1.3 V
1.3 V
Enable G Input
0V
1.5 V
Output WIth
0 V to A Input
VOL + 0.3 V
0.8 V
VOL
tPLZ
tPZL
VOH
Output WIth
3 V to A Input
VOH – 0.3 V
2V
1.5 V
tPHZ
tPZH
VOLTAGE WAVEFORMS
NOTES: A. C1, C2, and C3 includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, duty cycle ≤ 50%, tr < 6 ns, and
tf < 6 ns.
C. Each enable is tested separately.
Figure 4. Output Enable and Disable Time Waveforms and Test Circuit
8
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AM26C31C, AM26C31I, AM26C31M
QUADRUPLE DIFFERENTIAL LINE DRIVERS
SLLS103G – DECEMBER 1990 – REVISED SEPTEMBER 1998
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
SWITCHING FREQUENCY
300
IIDD
CC – Supply Current – mA
250
ÁÁ
ÁÁ
200
150
100
VCC = 5 V
TA = 25°C
See Figure 2
S1 Open
All Four Channels Switching Simultaneously
N Package
50
0
0
5
10
15
20
25
30
35
40
f – Switching Frequency – MHz
Figure 5
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Copyright  1998, Texas Instruments Incorporated