ICL761X_1 Datasheet, PDF (23/26 Pages) Maxim Integrated Products – Single/Dual/Triple/Quad Operational Amplifiers

Single/Dual/Triple/Quad
Operational Amplifiers
+5
+5
V_IN
-
+
100kΩ
V_OUT
TO CMOS OR
LPTTL LOGIC
1MΩ
Figure 3. Level Detector—By using the ICL7612 in these appli-
cations, the circuits will follow rail-to-rail inputs.
-
+
1_⁄2
ICL7621
1MΩ
-
1MΩ
+
1_⁄2
ICL7621
V-
V+
DUTY CYCLE
880kΩ
Figure 5. Precise Triangle/Square Wave Generator—The fre-
quency and duty cycle are virtually independent of power sup-
ply.
IH5040
1µF
-+
-
ICL7611
V_OUT
+
Figure 4. Photocurrent Integrator—Low-leakage currents allow
integration times up to several hours.
0.05µF _10kΩ
VIN
COMMON
2.2MΩ
+
10µF
-
1_⁄2
ICL7621
1.8kΩ = 5%
SCALE
ADJUST
1MΩ
VON
20kΩ
20kΩ
-
+ _1⁄2
ICL7621
TO
SUCCEEDING
INPUT
STAGE
VOL
Figure 6. Averaging AC to DC Converter—Recommended for
Maxim’s ICL7106/ICL7107/ICL7109 A/D Converters.
+15V
10kΩ
10kΩ
NOTES:
1. ICL7611, 7612, 7616, 7631, 7632
2. ICL7611, 7612, 7616, 7621, 7622, 7631, 7641, 7642
+15V
100Ω
NOTE 1
V+
IO
COMP
OUT
V-
NOTE 2
Figure 7. Burn-In and Life Test Circuit
BOTTOM VIEW
V+
I_OSET
OUTPUT
7
6
8
1
5
2
4
3
INPUTS
V
GUARD
Figure 8. Input Guard for TO-99
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