5
LTC2845
sn2845 2845fs
ELECTRICAL CHARACTERISTICS
TYPICAL PERFOR A CE CHARACTERISTICS
UW
DATA RATE (kBd)
I CC
(mA)
140
135
130
125
120
115
110
105
2845 G01
10
100
1000
10000
DATA RATE (kBd)
10
I EE
(mA)
34
30
28
26
24
22
20
18
30
100
2845 G02
20
40 50 60 70 80
10
30
100
20
40 50 60 70 80
DATA RATE (kBd)
I DD
(mA)
16
15
14
13
12
11
10
9
8
7
2845 G03
TEMPERATURE (
°C)
–40
I CC
(mA)
125
120
115
110
105
100
95
20
60
2845 G04
–20
0
40
80
100
–40
20
60
–20
0
40
80
100
–40
20
60
–20
0
40
80
100
TEMPERATURE (
°C)
I EE
(mA)
2845 G05
34.6
34.4
34.2
34.0
33.8
33.6
33.4
33.2
33.0
TEMPERATURE (
°C)
I DD
(mA)
2845 G06
13.9
13.8
13.7
13.6
13.5
13.4
13.3
13.2
13.1
TA = 25°C
RS530, X.21 in DCE Mode
(Three V.11, Two V.10 Drivers
with Full Load) ICC vs Data Rate
V.28 in DCE Mode
(Five V.28 Drivers with Full Load)
IDD vs Data Rate
RS530-A in DCE Mode
(Three V.10 Drivers with Full
Load) IEE vs Data Rate
RS530, X.21 in DCE Mode
(Three V.11, Two V.10 Drivers with
Full Load) ICC vs Temperature
V.28 in DCE Mode
(Five V.28 Drivers with Full Load)
IDD vs Temperature
RS530-A in DCE Mode
(Three V.10 Drivers with Full
Load) IEE vs Temperature
The q denotes specifications which apply over the full operating tempera-
ture range, otherwise specifications are at TA = 25°C. VCC = 5V, VIN = 3.3V, VDD = 8V, VEE = – 7V for V.28, – 5.5V for V.10, V.11
(Notes 2, 3)
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All currents into device pins are positive; all currents out of device
are negative. All voltages are referenced to device ground unless otherwise
specified.
Note 3: All typicals are given for VCC = 5V, VIN = 3.3V, VDD = 8V, VEE = – 7V
for V.28, – 5.5V for V.10, V.11 and TA = 25°C.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V.28 Receiver
VTHL
Input Low Threshold Voltage
q
0.8
V
VTLH
Input High Threshold Voltage
q
2V
VTH
Receiver Input Hysterisis
q
0.1
0.3
V
RIN
Receiver Input Impedance
–15V
≤ VA ≤ 15V
q
357
k
tr, tf
Rise or Fall Time
CL = 50pF (Figures 4, 8)
15
ns
tPLH
Input to Output
CL = 50pF (Figures 4, 8)
q
60
100
ns
tPHL
Input to Output
CL = 50pF (Figures 4, 8)
q
150
500
ns