ltc2845 Linear Technology Corporation, ltc2845 Datasheet - Page 3

• Manufacturer Part Number: ltc2845
• Description: 3.3v Software-selectable Mutiprotocol Transceiver
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
ture range, otherwise specifications are at T
(Notes 2, 3)
SYMBOL
I
I
I
P
Logic Inputs and Outputs
V
V
I
V
V
I
I
V.11 Driver
V
V
V
I
I
t
t
t
t
EE
DD
VIN
IN
OSR
OZR
SS
OZ
r
PLH
PHL
SKEW
D
IH
IL
OH
OL
ODO
ODL
OC
, t
V
V
t
OD
OC
f
PARAMETER
V
All Digital Pins = GND or V
V
All Digital Pins = GND or V
V
All Digital Pins = GND or V
Internal Power Dissipation (DCE Mode,
All Digital Pins = GND or V
Logic Input High Voltage
Logic Input Low Voltage
Logic Input Current
Output High Voltage
Output Low Voltage
Output Short-Circuit Current
Three-State Output Current
Open Circuit Differential Output Voltage
Loaded Differential Output Voltage
Change in Magnitude of Differential
Output Voltage
Common Mode Output Voltage
Change in Magnitude of Common Mode
Output Voltage
Short-Circuit Current
Output Leakage Current
Rise or Fall Time
Input to Output
Input to Output
Input to Output Difference, t
Output to Output Skew
EE
DD
IN
Supply Current (DCE Mode,
Supply Current (DCE Mode,
Supply Current (DCE Mode,
IN
IN
IN
IN
)
)
)
)
PLH
– t
PHL
A
= 25 C. V
CC
CONDITIONS
RS530, RS530-A, X.21 Modes, No Load
RS530, X.21 Modes, Full Load
RS530-A, Full Load
V.28 Mode, No Load
V.28 Mode, Full Load
No-Cable Mode
RS530, RS530-A, X.21 Modes, No Load
RS530, RS530-A, X.21 Modes, Full Load
V.28 Mode, No Load
V.28 Mode, Full Load
No-Cable Mode
All Modes Except No-Cable Mode
RS530, RS530-A, X.21 Modes, Full Load
V.28 Mode, Full Load
V
R4EN when V
D1, D2, D3, D4, D5
M0, M1, M2, DCE, D4ENB, R4EN = GND
M0, M1, M2, DCE, D4ENB, R4EN = V
I
I
0V V
M0 = M1 = M2 = V
M0 = M1 = M2 = V
R
R
R
R
R
V
–0.25V V
No-Cable Mode or Driver Disabled
LTC2845C (Figures 2, 5)
LTC2845I (Figures 2, 5)
LTC2845C (Figures 2, 5)
LTC28451 (Figures 2, 5)
LTC2845C (Figures 2, 5)
LTC2845I (Figures 2, 5)
LTC2845C (Figures 2, 5)
LTC2845I (Figures 2, 5)
(Figures 2, 5)
O
O
CC
OUT
L
L
L
L
L
= –3mA
= 1.6mA
= 5V, V
= 1.95k (Figure 1)
= 50 (Figure 1)
= 50 (Figure 1)
= 50 (Figure 1)
= 50 (Figure 1)
The
= 5V
= GND
O
V
denotes specifications which apply over the full operating tempera-
IN
O
IN
CC
= 3.3V, V
0.25V, Power Off or
= 3.3V
IN
IN
, V
, V
O
O
DD
= GND
= V
= 8V, V
IN
EE
IN
= – 7V for V.28, – 5.5V for V.10, V.11
0.5V
–30
–30
2.7
20
20
20
20
2
2
2
0
0
MIN
2
ODO
13.5
TYP
650
240
–75
–85
0.3
0.3
0.2
23
34
12
64
40
40
40
40
10
10
15
15
2
1
1
3
3
3
3
1
LTC2845
0.67V
–120
–160
MAX
0.8
0.5
0.4
0.2
0.2
150
100
25
35
65
75
65
75
12
17
10
10
50
10
3
5
ODO
sn2845 2845fs
UNITS
3
mW
mW
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
ns
ns
ns
ns
ns
ns
ns
ns
ns
A
A
A
V
V
V
A
A
A
V
V
A
A
V
V
V
V
V
V
A