TL441CN Datasheet, PDF (10/20 Pages) Texas Instruments – LOGARITHMIC AMPLIFIER

TL441
LOGARITHMIC AMPLIFIER
SLVS328 – OCTOBER 2000
APPLICATION INFORMATION
TRANSFER CHARACTERISTICS
OF TWO TYPICAL INPUT STAGES
0.4
0.3
0.2
0.1
Input
0
0.001
0.01
0.1
1
10
Input Voltage – V
2 kΩ, 1%
B1
Z
2 kΩ, 1%
1/2
TL441
B2 _GND Z
20 kΩ
2 kΩ, 1%
+
–
2 kΩ, 1%
Output
Figure 13. Utilization of Separate Stages
10
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