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參數(shù)資料
| 型號： | TL441N |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 運動控制電子 |
| 英文描述： | LOGARITHMIC AMPLIFIER |
| 中文描述： | 對數(shù)放大器 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 233K |
| 代理商： | TL441N |
TL441AM
LOGARITHMIC AMPLIFIER
SLFS038 – JUNE 1976 – REVISED FEBRUARY 1989
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics, V
CC
±
=
±
6 V, T
A
= 25
°
C
PARAMETER
TEST
FIGURE
MIN
TYP
MAX
UNIT
Differential output offset voltage
1
±
25
5.6
±
70
5.85
mV
Quiescent output voltage
2
5.45
V
DC scale factor (differential output), each 3-dB stage, – 35 dBV to – 5 dBV
3
7
8
11
mV/dB
AC scale factor (differential output)
8
mV/dB
DC error at – 20 dBV (midpoint of – 35 dBV to – 5 dBV range)
3
1
2.6
dB
ns
Input impedance
500
Output impedance
200
Rise time, 10% to 90% points, CL = 24 pF
Supply current from VCC+
Supply current from VCC –
Power dissipation
4
20
35
2
14.5
18.5
23
mA
2
– 6
– 8.5
– 10.5
mA
2
123
162
201
mW
electrical characteristics over operating free-air temperature range, V
CC
±
=
±
6 V (unless otherwise
noted)
PARAMETER
TEST
FIGURE
MIN
MAX
UNIT
Differential output offset voltage
1
±
100
5.85
mV
Quiescent output voltage
2
5.3
V
DC scale factor (differential output) each 30-dB stage, – 35 dBV to – 5 dBV
3
7
11
mV/dB
DC error at – 20 dBV (midpoint of – 35 dBV to – 5 dBV range)
TA = – 55
°
C
TA = 125
°
C
3
4
dB
3
Supply current from VCC+
Supply current from VCC –
Power dissipation
2
10
31
mA
2
– 4.5
– 15
mA
2
87
276
mW
PARAMETER MEASUREMENT INFORMATION
Figure 1
VCC+
VCC–
CA2CA2
′
VCC +VCC –
A1
A2
B1
Y
Y
Z
Z
DVM
CB2
CB2
′
GND
B2
Figure 2
CA2 CA2
′
A1
A2
B1
VCC+ VCC–
Y
Y
Z
Z
CB2CB2
′
GND
B2
VCC+
VCC–
ICC +
ICC –
VO
PD = VCC+
ICC+ + VCC–
ICC–
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