Datasheet

5
LTC2847
sn2847 2847fs
The denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V, V
IN
= 3.3V, unless otherwise noted (Notes 2, 3)
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the 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 V
CC
= 5V, V
IN
= 3.3V, C
VCC
= C
VIN
= 10µF,
C
VDD
= 1µF, C
VEE
= 3.3µF and T
A
= 25°C.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V.28 Receiver
V
THL
Input Low Threshold Voltage (Figure 12) 0.8 V
V
TLH
Input High Threshold Voltage (Figure 12) 2V
V
TH
Receiver Input Hysteresis (Figure 12) 0 0.05 0.3 V
R
IN
Receiver Input Impedance 15V V
A
15V 357 k
t
r
, t
f
Rise or Fall Time C
L
= 50pF (Figures 12, 16) 15 ns
t
PLH
Input to Output C
L
= 50pF (Figures 12, 16) 60 300 ns
t
PHL
Input to Output C
L
= 50pF (Figures 12, 16) 160 300 ns
TYPICAL PERFOR A CE CHARACTERISTICS
UW
V.11 Mode I
CC
vs Data Rate
DATA RATE (kBd)
10
I
CC
(mA)
120
130
140
2846 G04
110
100
90
100 1000
150
160
170
10000
T
A
= 25°C
DATA RATE (kBd)
10
120
I
CC
(mA)
125
130
135
140
150
100 1000
2846 G05
10000
145
T
A
= 25°C
DATA RATE (kBd)
10
30
I
CC
(mA)
35
40
45
50
60
20 40 60 80 100
2846 G06
55
T
A
= 25°C
V.35 Mode I
CC
vs Data Rate V.28 Mode I
CC
vs Data Rate
V.11 Mode I
CC
vs Temperature V.35 Mode I
CC
vs Temperature V.28 Mode I
CC
vs Temperature
TEMPERATURE (°C)
–40
I
CC
(mA)
100
105
110
20 60
2846 G07
95
90
–20 0
40 80 100
85
80
TEMPERATURE (°C)
–40
123.0
I
CC
(mA)
123.5
124.5
125.0
125.5
128.0
126.5
0
40
60
2846 G08
124.0
127.0
127.5
126.0
–20
20
80
100
TEMPERATURE (°C)
–40
I
CC
(mA)
37.0
20
3846 G09
35.5
34.5
–20 0 40
34.0
33.5
37.5
36.5
36.0
35.0
60 80 100