Datasheet

ADM8828/ADM8829
–3–REV. A
Typical Performance Characteristics–
SUPPLY VOLTAGE – V
0.8
0
1 5.51.5
SUPPLY CURRENT – mA
2 2.5 3 3.5 4 4.5 5
0.7
0.4
0.3
0.2
0.1
0.6
0.5
Figure 2. Power Supply Current vs. Voltage
SUPPLY VOLTAGE – V
35
0
1.5 5.52
OUTPUT RESISTANCE – V
2.5 3 3.5 4 4.5 5
30
20
15
10
5
25
Figure 3. Output Source Resistance vs. Supply Voltage
CAPACITANCE – mF
20
18
0
0.47 3.31
OUTPUT CURRENT – mA
2.2
8
6
4
2
12
10
16
14
OUTPUT CURRENT @ V
IN
= 4.75V
OUTPUT CURRENT @ V
IN
= 3.15V
OUTPUT CURRENT @ V
IN
= 1.9V
Figure 4. Output Current vs. Capacitance
CAPACITANCE – mF
60
50
0
0.47 3.31
OUTPUT VOLTAGE RIPPLE – mV p-p
2.2
40
30
20
10
OUTPUT VOLTAGE RIPPLE
@ V
IN
= 4.75V
OUTPUT VOLTAGE RIPPLE
@ V
IN
= 3.15V
OUTPUT VOLTAGE RIPPLE
@ V
IN
= 1.9V
I
L
= 5mA
Figure 5. Output Voltage Ripple vs. Capacitance
CAPACITANCE – mF
350
300
0
0.47 3.31
OUTPUT VOLTAGE RIPPLE – mV p-p
2.2
200
150
100
50
250
OUTPUT VOLTAGE RIPPLE
@ V
IN
= 1.9V, V
OUT
= –1.5V
OUTPUT VOLTAGE RIPPLE
@ V
IN
= 4.75V, V
OUT
= –4.0V
OUTPUT VOLTAGE RIPPLE
@ V
IN
= 3.15V, V
OUT
= –2.5V
Figure 6. Output Voltage Ripple vs. Capacitance
OUTPUT CURRENT – mA
0
–5
0
455
OUTPUT VOLTAGE – V
10 15 20 25 30 35 40
–0.5
–2.5
–3.5
–4
–4.5
–1
–1.5
–3
–2
OUTPUT VOLTAGE @ V
IN
= 2.0V
OUTPUT VOLTAGE @ V
IN
= 3.3V
OUTPUT VOLTAGE @ V
IN
= 5.0V
Figure 7. Output Voltage vs. Output Current