AM26LV31D [TI]
LOW-VOLTAGE HIGH-SPEED QUADRUPLE DIFFERENTIAL LINE DRIVER; 低电压高速四路差动线路驱动器
| 型号： | AM26LV31D |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | LOW-VOLTAGE HIGH-SPEED QUADRUPLE DIFFERENTIAL LINE DRIVER |
| 文件： | 总8页 (文件大小：116K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AM26LV31
LOW-VOLTAGE HIGH-SPEED
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS201E – MAY 1995 – REVISED DECEMBER 1999
D OR NS PACKAGE
(TOP VIEW)
Switching Rates up to 32 MHz
Operates From a Single 3.3-V Supply
Propagation Delay Time . . . 8 ns Typ
Pulse Skew Time . . . 500 ps Typ
1A
1Y
V
CC
1
2
3
4
5
6
7
8
16
15 4A
14 4Y
13 4Z
1Z
High Output-Drive Current . . . ±30 mA
Controlled Rise and Fall Times . . . 3 ns Typ
G
12
11
10
9
2Z
G
Differential Output Voltage With
100-Ω Load . . . 1.5 V Typ
2Y
3Z
3Y
3A
2A
Ultra-Low Power Dissipation
– dc, 0.3 mW Max
GND
– 32 MHz All Channels (No Load),
385 mW Typ
The D package is available taped
and reeled. The NS package is only
available taped and reeled. Add the
Accepts 5-V Logic Inputs With a 3.3-V
Supply
suffix
R to device type (e.g.,
AM26LV31CDR).
Low-Voltage Pin-to-Pin Compatible
Replacement for AM26C31, AM26LS31,
MB571
High Output Impedance in Power-Off
Condition
Driver Output Short-Protection Circuit
Package Options Include Plastic
Small-Outline (D, NS) Packages
description
The AM26LV31 is a BiCMOS quadruple differential line driver with 3-state outputs. It is designed to be similar
to TIA/EIA-422-B and ITU Recommendation V.11 drivers with reduced supply-voltage range.
The device is optimized for balanced-bus transmission at switching rates up to 32 MHz. The outputs have very
high current capability for driving balanced lines such as twisted-pair transmission lines and provide a high
impedance in the power-off condition. The enable function is common to all four drivers and offers the choice
of active-high or active-low enable inputs. The AM26LV31 is designed using Texas Instruments (TI )
proprietary LinIMPACT-C60 technology, facilitating ultra-low power consumption without sacrificing speed.
This device offers optimum performance when used with the AM26LV32 quadruple line receivers.
The AM26LV31C is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
ENABLES
OUTPUTS
INPUT
A
G
H
H
X
X
L
G
X
X
L
Y
H
L
Z
L
H
L
H
L
H
L
H
L
L
H
Z
X
H
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.
LinIMPACT-C60 and TI are trademarks of Texas Instruments Incorporated.
Copyright 1999, 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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
AM26LV31
LOW-VOLTAGE HIGH-SPEED
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS201E – MAY 1995 – REVISED DECEMBER 1999
†
logic diagram (positive logic)
logic symbol
4
4
≥1
G
12
G
G
G
G
12
EN
2
3
1
1Y
1Z
1A
6
5
2
3
7
2Y
2Z
1
1Y
1Z
2A
1A
6
5
10
11
2Y
2Z
3Y
3Z
4Y
4Z
7
9
3Y
3Z
2A
3A
4A
3A
10
11
14
13
9
14
13
15
4Y
4Z
4A
15
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
schematic (each driver)
EQUIVALENT OF EACH INPUT (A, G, OR G)
TYPICAL OF ALL OUTPUTS (Y AND Z)
V
CC
V
CC
100 Ω
6 Ω
40 kΩ
Input
GND
Output
GND
All resistor values are nominal.
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
AM26LV31
LOW-VOLTAGE HIGH-SPEED
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS201E – MAY 1995 – REVISED DECEMBER 1999
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6 V
CC
Input voltage range, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6 V
I
Output voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6 V
O
Package thermal impedance, θ (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W
JA
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W
Storage temperature range, T
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
†
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.
NOTES: 1. All voltage values are with respect to GND.
2. The package thermal impedance is calculated in accordance with JESD 51.
recommended operating conditions
MIN NOM
MAX
UNIT
V
Supply voltage, V
CC
3
2
3.3
3.6
High-level input voltage, V
IH
V
Low-level input voltage, V
0.8
–30
30
V
IL
High-level output current, I
mA
mA
°C
OH
Low-level output current, I
OL
Operating free-air temperature, T
0
70
A
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
AM26LV31
LOW-VOLTAGE HIGH-SPEED
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS201E – MAY 1995 – REVISED DECEMBER 1999
electrical characteristics over recommended operating supply-voltage and free-air temperature
ranges (unless otherwise noted)
†
PARAMETER
Input clamp voltage
TEST CONDITIONS
MIN TYP
MAX
UNIT
V
V
V
I = –18 mA
–1.5
V
V
V
V
V
IK
I
High-level output voltage
Low-level output voltage
Differential output voltage
V
= 2 V,
I
I
= –12 mA
= 12 mA
1.85
2.3
0.8
OH
OL
IH
IL
OH
V
= 0.8 V,
1.05
OH
‡
|V
|
0.95
1.3
1.5
OD
OC
V
Common-mode output voltage
1.55
1.8
±0.2
R
= 100 Ω
L
Change in magnitude of
common-mode output voltage
∆|V
|
V
OC
‡
I
Output current with power off
V
V
= –0.25 V or 6 V,
V = 0
CC
±100
±100
µA
µA
O
O
Off-state (high-impedance state)
output current
I
= –0.25 V or 6 V, G = 0.8 V or G = 2 V
OZ
O
I
I
I
I
High-level input current
V
V
V
= 0 or 3 V,
= 3.6 V,
V = 5.5 V
10
–10
µA
µA
mA
µA
pF
IH
CC
CC
CC
I
Low-level input current
V = 0
I
IL
= 3.6 V,
V
O
= 0
–200
100
Short-circuit output current
Supply current (all drivers)
Power dissipation capacitance (all drivers)
OS
CC
V = V
I
or GND,
No load
CC
§
C
No load
160
pd
†
‡
All typical values are at V
= 3.3 V and T = 25°C.
A
CC
| are the changes in magnitude of V
∆|V
OD
level.
| and ∆|V
and V
, respectively, that occur when the input is changed from a high level to a low
OC
OC
OD
§
C
determines the no-load dynamic current consumption. I = C × V
pd
× f + I
CC CC
pd
S
switching characteristics, V
= 3.3 V, T = 25°C
A
CC
PARAMETER
TEST CONDITIONS
MIN
4
TYP
8
MAX
12
UNIT
ns
t
t
t
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
PLH
PHL
t
See Figure 2
4
8
12
ns
Transition time (t or t )
3
ns
r
f
SR
Slew rate, single-ended output voltage
Output-enable time to high level
Output-enable time to low level
Output-disable time from high level
Output-disable time from low level
Pulse skew
See Note 3 and Figure 2
See Figure 3
0.3
10
10
10
1
20
20
20
20
1.5
1.5
3
V/ns
ns
t
t
t
t
t
t
t
PZH
See Figure 4
ns
PZL
See Figure 3
ns
PHZ
PLZ
See Figure 4
10
ns
ns
ns
ns
f = 32 MHz,
f = 32 MHz,
f = 32 MHz,
See Note 4
0.5
sk(p)
sk(o)
sk(lim)
Skew limit
See Note 5
See Note 6
Skew limit (device to device)
NOTES: 3. Slew rate is defined by:
90% VOH VOL
SR
10% VOH VOL
, the differential slew rate of VOD is 2 SR.
tr
4. Pulse skew is defined as the |t
5. Skew limit is the difference between any two outputs of the same device switching in the same direction.
– t
PLH PHL
| of each channel of the same device.
6. Skew limit (device to device) is the maximum difference in propagation delay times between any two channels of any two devices.
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
AM26LV31
LOW-VOLTAGE HIGH-SPEED
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS201E – MAY 1995 – REVISED DECEMBER 1999
PARAMETER MEASUREMENT INFORMATION
R /2
L
Y
Z
A
V
OD2
G
G
V
OC
R /2
L
Figure 1. Differential and Common-Mode Output Voltages
Y
C
= 15 pF
L
V
V
A
R
= 100 Ω
O
L
V
OD
Z
(see Note A)
Generator
(see Note B)
50 Ω
O
G
V
CC
G
TEST CIRCUIT
50%
V
CC
Input
50%
A
0 V
t
t
PHL
PLH
Z
Y
Output, V
O
PROPAGATION DELAY TIMES
V
V
OH
90%
90%
10%
10%
Y
Z
OL
t
t
r
f
Output, V
O
t
t
f
r
V
V
OH
90%
90%
10%
10%
OL
RISE AND FALL TIMES
NOTES: A.
C includes probe and jig capacitance.
L
B. The input pulse is supplied by a generator having the following characteristics: PRR = 32 MHz, Z ≈ 50 Ω, 50% duty cycle,
O
t and t ≤ 2 ns.
r
f
Figure 2. Test Circuit and Voltage Waveforms, t
and t
PLH
PHL
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
AM26LV31
LOW-VOLTAGE HIGH-SPEED
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS201E – MAY 1995 – REVISED DECEMBER 1999
PARAMETER MEASUREMENT INFORMATION
S1
Y
A
V
CC
Z
Output
R
= 110 Ω
C
= 15 pF
L
L
(see Note A)
G
G
Generator
(see Note B)
50 Ω
V
CC
(see Note C)
TEST CIRCUIT
V
CC
50%
50%
Input
0 V
t
PHZ
t
PZH
0.3 V
V
OH
Output
50%
VOLTAGE WAVEFORMS
V
off
≈ 0
NOTES: A.
C includes probe and jig capacitance.
L
B. The input pulse is supplied by a generator having the following characteristics: PRR = 1 MHz, Z = 50 Ω, 50% duty cycle,
O
t and t (10% to 90%) ≤ 2 ns.
C. To test the active-low enable G, ground G and apply an inverted waveform to G.
r
f
Figure 3. Test Circuit and Voltage Waveforms, t
and t
PHZ
PZH
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
AM26LV31
LOW-VOLTAGE HIGH-SPEED
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS201E – MAY 1995 – REVISED DECEMBER 1999
PARAMETER MEASUREMENT INFORMATION
V
CC
R
= 110 Ω
L
S1
Y
Z
A
V
CC
Output
C
= 15 pF
L
(see Note A)
G
G
Generator
(see Note B)
50 Ω
V
CC
(see Note C)
TEST CIRCUIT
50%
V
CC
Input
50%
0 V
t
PLZ
t
PZL
V
off
≈ V
CC
50%
Output
V
OL
0.3 V
VOLTAGE WAVEFORMS
NOTES: A.
C includes probe and jig capacitance.
L
B. The input pulse is supplied by a generator having the following characteristics: PRR = 1 MHz, Z = 50 Ω, 50% duty cycle,
O
t and t (10% to 90%) ≤ 2 ns.
C. To test the active-low enable G, ground G and apply an inverted waveform to G.
r
f
Figure 4. Test Circuit and Voltage Waveforms, t
and t
PLZ
PZL
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
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Copyright 1999, Texas Instruments Incorporated
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