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LOG112 数据表(PDF) 6 Page - Texas Instruments

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部件名 LOG112
功能描述  LOGARITHMIC AND LOG RATIO AMPLIFIERS
PDF  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LOG112 数据表(HTML) 6 Page - Texas Instruments

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LOG112, 2112
6
SBOS246C
www.ti.com
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = ±5V, and RL = 10kΩ, unless otherwise noted.
MINIMUM VALUE OF COMPENSATION CAPACITOR
100M
10M
1M
100k
10k
1k
100
10
1
100pA
1nA
10nA 100nA
1
µA10µA 100µA 1mA 10mA
I
2
I
1 = 100pA
I
1 = 1nA
I
1 = 10nA
I
1 = 100nA
1
µA
I
1 = 10µA
100
µA
1mA
Select C
C for I1 min.
and I
2 max. Values
below 2pF may be ignored.
3dB FREQUENCY RESPONSE
0.1
1M
100k
10k
1k
100
10
1
100
µA
100
µA
1mA
I
1 = 1mA
1
µA
1mA
to 10
µA
100nA
10nA
I
1 = 1nA
10nA
C C
= 1000pF
C C
= 1
µF
10µ
A to
1µ
A
C C
= 10pF
1nA
100
µA
100pA
1nA
10nA
100nA
1
µA10µA 100µA
1mA
I
2
1
µA
10
µA
100
µA
I
1 = 1nA
10nA
17
15
13
11
9
7
5
3
1
–1
Input Current (I
1 or I2)
LOG CONFORMITY vs INPUT CURRENT
+85
°C
+75
°C
–40
°C to +25°C
100pA
1nA
10nA
100nA
1
µA10µA 100µA1mA
LOG CONFORMITY vs TEMPERATURE
700
600
500
400
300
200
100
0
–40
–20
0
20
40
60
80
Temperature (
°C)
7.5 Decade
7 Decade
6 Decade 5 Decade



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