ISL28288_11 Datasheet, PDF (6/20 Pages) Intersil Corporation – Digital DC/DC PMBus 12A Module

ISL28288, ISL28488
Typical Performance Curves V₊ = 5V, V_- = 0V, V_CM = 2.5V, R_L = Open (Continued)
70
A_CL = 1000
60
50
A_CL = 100
40
30
A_CL = 10
20
R_F = 100kΩ, R_G = 100
R_F = 100kΩ, R_G = 1k
V_S = ±2.5V
C_L = 26.9pF
R_L = 10k
V_OUT = 10mV_P-P
10 ^{RF = 100kΩ, RG = 10k}
A_CL = 1
0
R_F = 0, R_G = ∞
-1010
100
1k
10k 100k 1M 10M
FREQUENCY (Hz)
140
130
120
110
100
90
80
70
60
50
40
30
10
V_S = ±2.5V
C_L = 29.6pF
V_CM = 1V_P-P
R_L__TRANSMIT = ∞
R_L__RECEIVE = 10k
R_L__TRANSMIT = 10k
R_L__RECEIVE = 10k
100
1k
10k
100k
1M
FREQUENCY (Hz)
FIGURE 8. FREQUENCY RESPONSE vs CLOSED LOOP GAIN
FIGURE 9. CROSSTALK vs FREQUENCY
1000
V_S = ±2.5V
100
10
1
0.1
1
10
100
1k
10k 100k
FREQUENCY (Hz)
FIGURE 10. CURRENT NOISE vs FREQUENCY
5
4
V_S = ±2.5V
A_V = 10k
3
2
1
0
-1
-2
-3
-4
-5 _{0 1 2 3 4 5 6 7 8 9 10}
TIME (s)
FIGURE 12. 0.1Hz TO 10Hz INPUT VOLTAGE NOISE
10000
V_S = ±2.5V
1000
100
10
0.1
1
10
100
1k
10k 100k
FREQUENCY (Hz)
FIGURE 11. VOLTAGE NOISE vs FREQUENCY
2.56
2.54
2.52
2.50
2.48
V₊ = 5V
A_V = 1
R_L = 1kΩ
V_OUT = 0.1V_P-P
2.46
2.44 ₀
20 40 60 80 100 120 140 160 180 200
TIME (µs)
FIGURE 13. SMALL SIGNAL TRANSIENT RESPONSE
6
FN6339.4
July 26, 2011