ISL28006_10 Datasheet, PDF (17/25 Pages) Intersil Corporation – Micropower, Rail to Rail Input Current Sense Amplifier with Voltage Output

ISL28006
Typical Performance Curves V_cc = 12V, R_L = 1M, unless otherwise specified. (Continued)
2
0
-2
+100°C +25°C _-40°C
-4
-6
-8
+125°C
-10
-12
-14
-16
GAIN 101 ADJ
-18
R_f = 100k, R_g = 1k
V_SENSE = 2mV, 20mV
-20 _{2 4 6 8 10 12 14 16 18 20 22 24 26 28}
V_CC (V)
FIGURE 55. GAIN ACCURACY vs V_CC, V_RS+ = 0.1V
0.2
0.0
-0.2
-0.4
-0.6 ^{GAIN 101 ADJ}
-0.8
R_f = 100k
R_g = 1k
-1.0
0.2
0.0
-0.2
-0.4
-0.6 GAIN 21 ADJ
-0.8 ^{Rf = 100k}
-1.0 ^{Rg = 5k}
1µ
10µ
-40°C
+100°C
+125°C
-40°C
+100°C
+125°C
100µ
1m
I_OUT(A)
+25°C
+25°C
10m
FIGURE 56. NORMALIZED V_OA vs I_OUT
45
40
V_RS+ = 0.1V GAIN = 101
35
30 ^VRS+ ^{= 12V GAIN = 51}
V_RS+ = 12V GAIN = 101
25
V_RS+ = 0.1V GAIN = 21
20
V_CC = 12V
V_RS+ = 12V GAIN = 21
15 _{VSENSE = 100mV}
10 ^{GAIN = 21, 51, 101}
R_f = 100k
5 R_g = 1k, 2k, 5k
0 ^{RL = 1M}
V_RS+ = 12V GAIN = 51
100
1k
10k
100k
1M
FREQUENCY (Hz)
FIGURE 57. GAIN vs FREQUENCY V_RS+ = 100mV/12V,
V_SENSE = 100mV, V_OUT = 50mV_P-P
200
150
100
50
0
-50
-100
-150
-200
-250
-300
-350
-50
GAIN = 21
GAIN = 101
V_SENSE = 20mV, 100mV
V_RS+ = 12V
GAIN = 21, 101
R_f = 100k
R_g = 1k, 5k
R_L = 1M
-25
0
25
50
75 100 125
TEMPERATURE (°C)
FIGURE 58. V_OS (µV) vs TEMPERATURE
0.40
0.35
GAIN = 101
0.30
0.25
0.20
0.15
V_SENSE = 20mV, 100mV
V_RS+ = 12V
0.10 ^{GAIN = 21, 101}
R_f = 100k
0.05 R_g = 1k, 5k
R_L = 1M
0
-50 -25
0
25
GAIN = 21
50
75 100 125
TEMPERATURE (°C)
FIGURE 59. GAIN ACCURACY (%) vs TEMPERATURE
0.6
0.5
0.4
GAIN = 101
0.3
0.2
0.1 ^{VSENSE = 20mV, 100mV}
V_RS+ = 12V
0 GAIN = 21, 101
R_f = 100k
-0.1 R_g = 1k, 5k
R_L = 1M
-0.2
-50 -25
0
25
GAIN = 21
50
75
TEMPERATURE (°C)
100 125
FIGURE 60. V_OUT ERROR (%) vs TEMPERATURE
17
FN6548.4
September 16, 2010