ICL7611, ICL7612
0.2F
0.2F
0.2F
30k
160k
680k
100k
51k
+
+
ICL7611
ICL7611
-
-
360k
1M
INPUT
0.1F
0.2F
0.1F
OUTPUT
360k
1M
(NOTE 5)
(NOTE 5)
NOTES:
5. Note that small capacitors (25pF to 50pF) may be needed for stability in some cases.
6. The low bias currents permit high resistance and low capacitance values to be used to achieve low frequency cutoff. f = 10Hz, A
C
= 4,
VCL
Passband ripple = 0.1dB.
FIGURE 8. FIFTH ORDER CHEBYCHEV MULTIPLE FEEDBACK LOW PASS FILTER
Typical Performance Curves
4
3
2
10k
10
10
10
T
= +25°C
V+ - V- = 10V
NO LOAD
A
NO LOAD
NO SIGNAL
I
= 1mA
Q
NO SIGNAL
I
I
= 1mA
Q
1k
I
= 100A
Q
= 100A
= 10A
100
10
Q
II ==110mA
QQ
I
Q
10
1
1
-50
-25
0
25
50
75
100
125
0
2
4
6
8
10
12
14
16
SUPPLY VOLTAGE (V)
FREE-AIR TEMPERATURE (°C)
FIGURE 9. SUPPLY CURRENT PER AMPLIFIER vs SUPPLY
VOLTAGE
FIGURE 10. SUPPLY CURRENT PER AMPLIFIER vs FREE-AIR
TEMPERATURE
1000
1000
V
V
= 10V
= 8V
SUPP
V
= 5V
S
OUT
R
Q
= 1M
= 10A
L
100
10
I
100
10
1
R
Q
= 100k
= 100A
L
I
R
Q
= 10k
L
I
= 1mA
1.0
0.1
-50
-75
-50
-25
0
25
50
75
100
125
-25
0
25
50
75
100
125
FREE-AIR TEMPERATURE (°C)
FREE-AIR TEMPERATURE (°C)
FIGURE 12. LARGE SIGNAL DIFFERENTIAL VOLTAGE GAIN
vs FREE-AIR TEMPERATURE
FIGURE 11. INPUT BIAS CURRENT vs TEMPERATURE
FN2919 Rev 9.00
April 26, 2007
Page 8 of 13
RENESAS [ RENESAS TECHNOLOGY CORP ]
