![](http://datasheet.mmic.net.cn/Linear-Technology/LT1796IS8-TRPBF_datasheet_97941/LT1796IS8-TRPBF_3.png)
3
LT1796
1796f
DC ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 4.75V to 5.25V, VRS = 0V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VTH
Differential Input Threshold Voltage
VRS = 0V, – 7V < VCM < 12V
q
0.5
0.9
V
for Receiver
VRS = 5V, – 7V < VCM < 12V
q
0.5
0.9
V
VTH
Receiver Input Hysteresis
– 7V < VCM < 12V
70
mV
VOH
Receiver Output High Voltage
VCC = 4.75V, IO = – 400A, VID = 500mV
q
3
3.6
V
VOL
Receiver Output Low Voltage
VCC = 4.75V, IO = 1.6mA, VID = 900mV
q
0.15
0.4
V
ISCR
Receiver Short-Circuit Current
0V < VO < VCC , VCC = 5.25V
q
720
85
mA
VREF
Reference Output Voltage
– 100
A < IREF < 100A
q
2.25
2.5
2.7
V
VREFSC
Reference Output Short-Circuit Current
0 < VREF < VCC
q
–20
20
mA
VRSSB
RS Pin Standby Threshold
VCC = 5V
q
2.5
2.8
4
V
IRS
RS Input Current
VRS = 5V, VCC = 5V
q
0.1
10
A
VRS = 0V, VCC = 5V
q
– 270
– 200
– 140
A
RS = 47k, VCC = 5V
q
–90
– 60
–40
A
ICC
Supply Current
Dominant
No Load, VRS = 0V, VTXD = 0V, VCC = 5.25V
q
4.3
7
mA
Recessive
RL = 60, VRS = 0V, VTXD = 5V, VCC = 5.25V
q
3.8
7
mA
Standby
RL = 60, VRS = 5V, VCC = 5.25V
q
0.8
1.5
mA
SWITCHI G CHARACTERISTICS
U
The q denotes the specifications which apply over the full operating
temperature range. VRS = 0V unless otherwise noted. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tBIT
Minimum Bit Time
(Note 3)
q
8
s
FMAX
Maximum Data Rate
(Note 3)
q
125
kbps
tTXDON
Driver Input to Bus Active
Figures 1, 2
RS = 0k
q
300
500
ns
RS = 47k
q
350
1000
ns
tTXDOFF
Driver Input to Bus Inactive
Figures 1, 2
RS = 0k
q
500
1000
ns
RS = 47k
q
600
1500
ns
tLBON
Loopback Delay Active
Figures 1, 3
q
0.6
1.5
s
tLBOFF
Loopback Delay Inactive
Figures 1, 3
q
1.5
3
s
tRXDOFF
Receiver Delay Off
Figures 1, 4
q
400
600
ns
tRXDON
Receiver Delay On
Figures 1, 4
q
300
600
ns
tRXDOFFSB
Receiver Delay Off, Standby
VRS = 4V, Figures 1, 4
q
1.5
4
s
tRXDONSB
Receiver Delay On, Standby
VRS = 4V, Figures 1, 4
q
14
s
tWAKE
Wake-Up Delay from Standby
Figures 1, 5
q
115
s
SR+
Positive Slew Rate
RS = 0k
q
512
65
V/
s
RS = 47k
q
27
30
V/
s
SR–
Negative Slew Rate
RS = 0k
q
536
65
V/
s
RS = 47k
q
25
15
V/
s
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Unless otherwise specified, testing done at VCC = 5V, TA = 25°C.
Note 3: Bit time and data rate specifications are guaranteed by driver and
receiver delay time measurements.