ICL7611_07 Datasheet, PDF (8/13 Pages) Intersil Corporation – 1.4MHz, Low Power CMOS Operational Amplifiers

ICL7611, ICL7612
0.2μF
0.2μF
0.2μF
30k
160k
INPUT
0.1μF
+
ICL7611
-
360k
680k
100k
0.2μF
51k
0.1μF
+
ICL7611
-
1M
OUTPUT
360k _{(NOTE 5)}
1M
(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_C = 10Hz, A_VCL = 4,
Passband ripple = 0.1dB.
FIGURE 8. FIFTH ORDER CHEBYCHEV MULTIPLE FEEDBACK LOW PASS FILTER
Typical Performance Curves
10k
T_A = +25°C
NO LOAD
NO SIGNAL
1k
I_Q = 1mA
I_Q = 100μA
100
II_QQ==110mμA
10
10⁴
V+ - V- = 10V
NO LOAD
NO SIGNAL
10³
10²
10
I_Q = 1mA
I_Q = 100μA
I_Q = 10μA
1
0
2
4
6
8
10 12
14
16
SUPPLY VOLTAGE (V)
FIGURE 9. SUPPLY CURRENT PER AMPLIFIER vs SUPPLY
VOLTAGE
1000
V_S = ±5V
100
10
1.0
0.1
-50 -25
0
25
50
75
100 125
FREE-AIR TEMPERATURE (°C)
FIGURE 11. INPUT BIAS CURRENT vs TEMPERATURE
8
1
-50 -25
0
25
50
75
100 125
FREE-AIR TEMPERATURE (°C)
FIGURE 10. SUPPLY CURRENT PER AMPLIFIER vs FREE-AIR
TEMPERATURE
1000
V_SUPP = 10V
V_OUT = 8V
100
R_L = 100kΩ
I_Q = 100μA
R_L = 10kΩ
I_Q = 1mA
10
R_L = 1MΩ
I_Q = 10μA
1
-75 -50 -25
0
25 50 75 100 125
FREE-AIR TEMPERATURE (°C)
FIGURE 12. LARGE SIGNAL DIFFERENTIAL VOLTAGE GAIN
vs FREE-AIR TEMPERATURE
FN2919.9
April 26, 2007