Linear Technology LTM2882-3 RS232 µModule Isolator Demo Board (3.3V Supply) DC1554A-A DC1554A-A Data Sheet
Product codes
DC1554A-A
LTM2882
5
2882fd
Typical perForMance characTerisTics
V
CC
Supply Current vs Load
Capacitance (Dual Transceiver)
V
CC
Supply Current vs Data Rate
(Dual Transceiver)
Driver Short-Circuit Current
vs Temperature
Receiver Input Threshold
vs Temperature
V
CC
Supply Current
vs Temperature
V
CC
Supply Current
vs Temperature
T
A
= 25°C, LTM2882-3 V
CC
= 3.3V, LTM2882-5
V
CC
= 5V, V
L
= 3.3V, and GND = GND2 = 0V, ON = V
L
unless otherwise noted.
TEMPERATURE (°C)
–50
V
CC
CURRENT (mA)
30
25
15
20
10
50
0
100
2882 G01
125
25
–25
75
NO LOAD
V
CC
= 3.3V
LTM2882-3
V
CC
= 5.0V
LTM2882-5
TEMPERATURE (°C)
–50
V
CC
CURRENT (mA)
70
60
40
35
45
55
65
50
30
50
0
100
2882 G02
125
25
–25
75
T1OUT AND T2OUT
BAUD = 100kbps
R
L
= 3k, C
L
= 2.5nF
V
CC
= 3.3V
LTM2882-3
V
CC
= 5.0V
LTM2882-5
LOAD CAPACITANCE (nF)
0
V
CC
CURRENT (mA)
100
250kbps, LTM2882-3
100kbps, LTM2882-3
19.2kbps, LTM2882-3
19.2kbps, LTM2882-5
250kbps, LTM2882-5
100kbps, LTM2882-5
80
40
50
30
70
90
60
20
1
2
2882 G03
2.5
0.5
1.5
DATA RATE (kbps)
0
V
CC
CURRENT (mA)
140
100
40
80
120
60
20
400
800
2882 G04
1000
200
600
5.0V C
L
= 1nF
5.0V C
L
= 250pF
3.3V C
L
= 1nF
3.3V C
L
= 250pF
TEMPERATURE (°C)
–50
THRESHOLD VOL
TAGE (V)
3.0
2.0
0.5
1.5
2.5
1.0
0
50
0
100
2882 G05
125
INPUT LOW
25
–25
75
INPUT HIGH
LOAD CAPACITANCE (nF)
0
SLEW RA
TE (V
/µs)
70
50
10
20
40
60
30
0
4
2
2882 G06
5
3
1
FALLING
RISING
TEMPERATURE (°C)
–50
SHOR
T-CIRCUIT CURRENT (mA)
50
40
25
20
15
35
45
30
10
0
50
75
100
2882 G07
125
–25
25
SOURCING
SINKING
Driver Slew Rate
vs Load Capacitance
Receiver Output Voltage
vs Load Current
LOAD CURRENT(mA)
0
OUTPUT VOL
TAGE (V)
6
1
2
4
5
3
0
8
4
2882 G09
10
6
2
V
L
= 5.5V
V
L
= 3.3V
V
L
= 1.62V
Driver Disabled Leakage Current
vs Temperature at ±15V
TEMPERATURE (°C)
–50
LEAKAGE CURRENT (nA)
1000
10
0.01
1
100
0.1
0.001
0
50
75
100
2882 G08
125
–25
25
V
TOUT
= ±15V