ICL7621DESA-T Maxim Integrated Products, ICL7621DESA-T Datasheet - Page 23

• Manufacturer Part Number: ICL7621DESA-T
• Description: Op Amps Dual CMOS Low Power
• Manufacturer: Maxim Integrated Products

Specifications of ICL7621DESA-T

• Number Of Channels: 2
• Voltage Gain Db: 104 dB
• Common Mode Rejection Ratio (min): 60 dB
• Input Offset Voltage: 15 mV
• Operating Supply Voltage: 3 V or 5 V or 9 V or 12 V or 15 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-8 Narrow
• Maximum Dual Supply Voltage: +/- 8 V
• Minimum Operating Temperature: - 40 C

Figure 3. Level Detector—By using the ICL7612 in these appli-
cations, the circuits will follow rail-to-rail inputs.
Figure 5. Precise Triangle/Square Wave Generator—The fre-
quency and duty cycle are virtually independent of power sup-
ply.
Figure 7. Burn-In and Life Test Circuit
NOTES:
1. ICL7611, 7612, 7616, 7631, 7632
2. ICL7611, 7612, 7616, 7621, 7622, 7631, 7641, 7642
V
IN
100kΩ
-
+
ICL7621
+5
1
⁄
2
______________________________________________________________________________________
10kΩ
+15V
V-
+
-
1MΩ
880kΩ
+5
10kΩ
1MΩ
DUTY CYCLE
1MΩ
-
+
+15V
V+
V-
ICL7621
V+
1
100Ω
⁄
2
I
O
NOTE 1
COMP
OUT
V
TO CMOS OR
LPTTL LOGIC
OUT
NOTE 2
Single/Dual/Triple/Quad
Figure 4. Photocurrent Integrator—Low-leakage currents allow
integration times up to several hours.
Figure 6. Averaging AC to DC Converter—Recommended for
Maxim’s ICL7106/ICL7107/ICL7109 A/D Converters.
Figure 8. Input Guard for TO-99
Operational Amplifiers
V
COMMON
IN
0.05µF
BOTTOM VIEW
10kΩ
OUTPUT
+
-
ICL7621
2.2MΩ
1
⁄
2
10µF
V+
V
5
6
+
-
ICL7611
-
1.8kΩ = 5%
1µF
ADJUST
SCALE
IH5040
+
4
7
GUARD
3
8
+
-
20kΩ
20kΩ
ICL7621
1
2
1
⁄
2
I
O
SET
1MΩ
TO
SUCCEEDING
INPUT
STAGE
V
OUT
V
V
ON
OL
23