TL054MFKB View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TL054MFKB Datasheet PDF : 67 Pages
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TL05x, TL05xA
ENHANCED-JFET LOW-OFFSET
OPERATIONAL AMPLIFIERS
SLOS178A – FEBRUARY 1997 - REVISED FEBRUARY 2003
APPLICATION INFORMATION
R2
VA
+
_U1A
R1
20 kΩ
10 kΩ
+
_U1B
D1
R3
30 kΩ
2N2484
Q1
+
U_ 1C
R5
10 kΩ
R4
10 kΩ
R6
10 kΩ
+
_U1D
R7
10 kΩ
+
R18
R20
_U3A
10 kΩ
10 kΩ
R16
+
16.3 kΩ
_U3D
VO
R9
VB
+
U_ 2A
R8
20 kΩ
10 kΩ
+
U_ 2B
D2
R10
30 kΩ
+
U_ 2C
R12
10 kΩ
R11
10 kΩ
R13
10 kΩ
2N2484
R76
+
U_ 2D
R14
10 kΩ
16.3 kΩ
+
Q2 U_ 3B
15 V
R19
10 kΩ
82 kΩ
1 kΩ
82 kΩ
+
U_3C
C1
R21
10 kΩ
–15 V
NOTE A: U1A through U3D = TL05xA, VCC± = ±15 V. D1 and D2 = 1N914.
Figure 90. Voltage Ratio-to-dB Converter
2
1
0
–1
–2
0 1 2 3 4 5 6 7 8 9 10
Ratio – VA/VB
Figure 91. Output Voltage vs the Ratio of the Input Voltages for Voltage-to-dB Converter
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