4
LTC1327
SUPPLY VOLTAGE (V)
0
14
12
10
8
6
4
2
0
30
50
1327 G06
10
20
40
60
70
SHORT-CIRCUIT
CURRENT
(mA)
ISC
–
ISC
+
DATA RATE (k BAUD)
0
SUPPLY
CURRENT
(mA)
45
40
35
30
25
20
15
10
5
0
1327 G03
40
20
60
80
120
100
140
VCC = 3.3V
RL = 3k
CL = 1000pF
3 DRIVERS ACTIVE
VCC Supply Current vs Data Rate
CC
HARA TERISTICS
UW
A
TYPICALPERFOR
CE
TEMPERATURE (°C)
0
LEAKAGE
CURRENT
(
A)
60
45
40
35
30
25
20
15
10
5
0
1327 G05
20
70
10
30
40
50
VOUT = –20V
VOUT = 20V
Driver Leakage in SHUTDOWN
vs Temperature
Driver Short-Circuit Current vs
Supply Voltage
PI FU CTIO S
U
UU
VCC: 3.3V Input Supply Pin. Supply current 0.2A in the
SHUTDOWN mode. This pin should be decoupled with a
0.1
F ceramic capacitor.
GND: Ground Pin.
ON/OFF: TTL/CMOS Compatible Shutdown Pin. A logic
low puts the device in SHUTDOWN mode which reduces
the supply current to 0.2
A and places all drivers and
receivers in high impedance state. This pin cannot float.
V +: Positive Supply Output (EIA/TIA-562 Drivers).
V+
2VCC – 1V. This pin requires an external capacitor
C = 0.1
F for charge storage. The capacitor may be tied to
ground or 3.3V. With multiple devices, the V + and V – pins
may be paralleled into common capacitors. For large
numbers of devices, increasing the size of the shared
common storage capacitors is recommended to reduce
ripple.
V –: Negative Supply Output (EIA/TIA-562 Drivers).
V –
– (2VCC – 1.3). This pin requires an external capacitor
C = 0.1
F for a charge storage.
DRIVER
OUTPUT
RL = 3k
DRIVER
OUTPUT
RL = 3k
CL = 1000pF
INPUT
1327 G08
1327 G09
Driver Output Waveform
Receiver Output Waveform
INPUT
RECEIVER
OUTPUT
CL = 50pF
Receiver Short-Circuit Current
vs Temperature
TEMPERATURE (°C)
0
SHORT-CIRCUIT
CURRENT
(mA)
60
1327 G07
20
40
35
30
25
20
15
10
5
0
10
30
50
70
ISC
+
ISC
–