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AM26C31 Datasheet(PDF) 5 Page - Texas Instruments

Part No. AM26C31
Description  QUADRUPLE DIFFERENTIAL LINE DRIVERS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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AM26C31C, AM26C31I, AM26C31M
QUADRUPLE DIFFERENTIAL LINE DRIVERS
SLLS103G – DECEMBER 1990 – REVISED SEPTEMBER 1998
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
AM26C31M
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
VOH
High-level output voltage
IO = – 20 mA
2.2
3.4
V
VOL
Low-level output voltage
IO = 20 mA
0.2
0.4
V
|VOD|
Differential output voltage magnitude
2
3.1
V
∆|VOD|
Change in magnitude of differential
output voltage‡
RL = 100 Ω
See Figure 1
±0.4
V
VOC
Common-mode output voltage
RL = 100 Ω,
See Figure 1
3
V
∆|VOC|
Change in magnitude of common-mode
output voltage‡
±0.4
V
II
Input current
VI = VCC or GND
±1
µA
IO( ff)
Driver output current with power off
VCC = 0,
VO = 6 V
100
µA
IO(off)
Driver output current with power off
VCC = 0,
VO = – 0.25 V
–100
µA
IOS
Driver output short-circuit current
VO = 0
–170
mA
IOZ
High impedance off state output current
VO = 2.5 V
20
µA
IOZ
High-impedance off-state output current
VO = 0.5 V
–20
µA
ICC
Quiescent supply current
IO = 0,
VI = 0 V or 5 V
100
µA
ICC
Quiescent supply current
IO = 0,
VI = 2.4 V or 0.5 V,
See Note 2
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
AM26C31M
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
tPLH
Propagation delay time, low- to high-level output
7
12
ns
tPHL
Propagation delay time, high- to low-level output
S1 is open,
See Figure 2
6.5
12
ns
tsk(p)
Pulse skew time (| tPLH – tPHL|)
0.5
4
ns
tr(OD), tf(OD)
Differential output rise and fall times
S1 is open,
See Figure 3
5
12
ns
tPZH
Output enable time to high level
10
19
ns
tPZL
Output enable time to low level
S1 is closed
See Figure 4
10
19
ns
tPHZ
Output disable time from high level
S1 is closed,
See Figure 4
7
16
ns
tPLZ
Output disable time from low level
7
16
ns
Cpd
Power dissipation capacitance (each driver) (see
Note 3)
S1 is open,
See Figure 2
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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