ADM202E/ADM1181A
Typical Performance Curves
10
8
6
T
OUT
VOLTAGE – V
15
V
CC
= +5V
T
A
= 25 C
10
V
CC
= +5V
T
A
= 25 C
4
T
OUT
– V
5
2
0
–2
–4
0
–5
–10
–6
–8
–15
0
1
2
3
4
5
6
I
LOAD
– mA
7
8
9
10
0
500
1000
1500
C
L
– pF
2000
2500
Figure 6. Transmitter Output Voltage High/Low vs.
Load Capacitance @ 230 kbps
Figure 9. Transmitter Output Voltage Low/High vs.
Load Current
12
T
A
= 25 C
10
V
CC
= +5V
T
A
= 25 C
8
T
OUT
– V+
6
4
2
0
3
3.5
4
V
CC
– V
4.5
5
5.5
Figure 7. Transmitter Output Voltage High vs. V
CC
Figure 10. 230 kbps Data Transmission
10
8
6
V
CC
= +5V
T
A
= 25 C
400
T
A
= 25 C
350
300
IMPEDANCE –
Ω
CHARGE PUMP VOLTAGE
4
2
0
–2
–4
–6
250
200
150
100
50
–8
–10
0
0
5
10
15
I
LOAD
– mA
20
25
3
3.5
4
V
CC
– V
4.5
5
5.5
Figure 8. Charge Pump V+, V– vs. Current
Figure 11. Charge Pump Impedance vs. V
CC
–6–
REV. 0