LTC2803 LINER [Linear Technology], LTC2803 Datasheet - Page 3

• Manufacturer Part Number: LTC2803
• Description: Multiprotocol Transceiver
• Manufacturer: LINER [Linear Technology]

elecTrical characTerisTics
temperature range, otherwise specifications are at T
SYMBOL
Power Supply
V
V
RS485 Drivers
|V
∆|V
V
∆|V
I
I
RS485 Receiver
I
R
V
V
R
OZD485
OSD485
IN485
CC
L
OC
OL
OH
IN485
TERM
OD
OD
OC
|
|
|
PARAMETER
Supply Voltage Operating Range
Logic Supply Voltage Operating Range
V
V
(Outputs Unloaded) (Note 3)
V
(Outputs Unloaded) (Note 3)
V
Mode (Outputs Unloaded)
Differential Output Voltage
Difference in Magnitude of Differential Output
Voltage for Complementary Output States
Common Mode Output Voltage
Difference in Magnitude of Common Mode
Output Voltage for Complementary Output States
Three-State (High Impedance) Output Current
Maximum Short-Circuit Current
Input Current
Input Resistance
Differential Input Signal Threshold Voltage (A–B) –7V ≤ (A or B) ≤ 12 (Note 5)
Differential Input Signal Hysteresis
Differential Input DC Failsafe Threshold Voltage
(A–B)
Differential Input DC Failsafe Hysteresis
Output Low Voltage
Output High Voltage
Three-State (High Impedance) Output Current
Short-Circuit Output Current
Terminating Resistor
CC
CC
CC
L
Supply Current in RS485 or RS232 Transceive
Supply Current in Shutdown Mode
Supply Current in RS485 Transceiver Mode
Supply Current in RS232 Transceiver Mode
A
= 25°C. V
CONDITIONS
V
RXEN1 = RXEN2 = V
DXEN1 = DXEN2 = FEN = H/F = 0V
485/232_1 = 485/232_2 = DXEN1 =
DXEN2 = V
DXEN1 = DXEN2 = V
485/232_2 = RXEN1 = RXEN2 = 0V
DXEN1 = DXEN2 = V
R
R
R
R
R
R
R
R
V
V
–7V ≤ V
V
(Figure 3) (Note 5)
V
(Figure 3) (Note 5)
B = 0V (Notes 3, 5)
–7V ≤ (A or B) ≤ 12 (Note 5)
B = 0V (Note 5)
Output Low, I(RA) = 3mA (Sinking),
3V ≤ V
Output Low, I(RA) = 1mA (Sinking),
1.7V ≤ V
Output High, I(RA) = –3mA (Sourcing),
3V ≤ V
Output High, I(RA) = –1mA (Sourcing),
1.7V ≤ V
0V ≤ RA ≤ V
0V ≤ RA ≤ V
TE485 = V
(Figure 8) (Note 5)
L
OUT
CC
IN
IN
L
L
L
L
L
L
L
L
≤ V
= ∞, V
= 27Ω, V
= 27Ω, V
= 50Ω, V
= 27Ω, V
= 50Ω, V
= 27Ω or 50Ω (Figure 1)
= 27Ω or 50Ω (Figure 1)
The
= 12V or –7V, V
= 12V or –7V, V
= 0V or 3.3V (Figure 2)
= 12V or –7V,
CC
L
L
OUT
≤ 5.5V
≤ 5.5V
CC
L
L
l
< 3V
< 3V
CC
L
L
denotes the specifications which apply over the full operating
, A–B = 2V, B = –7V, 0V, 10V
= V
, RXEN1 = RXEN2 = 0V
≤ 12V (Figure 2)
CC
CC
CC
CC
CC
L
L
= 3V (Figure 1)
, V
, V
= 4.5V (Figure 1)
= 3V (Figure 1)
= 3.13V (Figure 1)
= 3V (Figure 1)
= 3.13V (Figure 1)
L
L
L
= 3.3V, TE485_1 = TE485_2 = 0V, LB = 0V unless otherwise noted.
= 5.5V
= 5.5V
CC
CC
L
L
L
,
; 485/232_1 =
, RXEN1 = RXEN2 = 0V
= 0V or 3.3V
= 0V or 3.3V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
V
V
L
L
–100
–250
–100
–200
MIN
108
1.7
2.1
1.5
– 0.4
– 0.4
3
2
TYP
125
190
–65
120
4.5
5.5
30
8
0
0
LTC2872
±200
±135
MAX
V
V
V
V
125
250
125
156
5.5
0.2
0.2
0.2
0.4
0.4
60
±5
7
8
5
6
3
0
CC
CC
CC
CC
UNITS
3
2872f
mA
mA
mA
mV
mV
mV
mV
mA
kΩ
µA
µA
µA
µA
μA
Ω
V
V
V
V
V
V
V
V
V
V
V
V
V
V