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LOG112 数据表(PDF) 5 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) 5 Page - Texas Instruments

  LOG112 Datasheet HTML 1Page - Texas Instruments LOG112 Datasheet HTML 2Page - Texas Instruments LOG112 Datasheet HTML 3Page - Texas Instruments LOG112 Datasheet HTML 4Page - Texas Instruments LOG112 Datasheet HTML 5Page - Texas Instruments LOG112 Datasheet HTML 6Page - Texas Instruments LOG112 Datasheet HTML 7Page - Texas Instruments LOG112 Datasheet HTML 8Page - Texas Instruments LOG112 Datasheet HTML 9Page - Texas Instruments Next Button
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LOG112, 2112
5
SBOS246C
www.ti.com
TYPICAL CHARACTERISTICS
At TA = +25°C, VS = ±5V, and RL = 10kΩ, unless otherwise noted.
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
NORMALIZED TRANSFER FUNCTION
0.0001 0.001
0.01
0.1
1
10
100
1k
10k
Current Ratio, I
1/I2
V
LOGOUT = (0.5V)LOG (I1/I2)
ONE CYCLE OF NORMALIZED TRANSFER FUNCTION
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
110
Current Ratio, I
1/I2
8
7
6
5
4
3
2
1
0
–1
–2
1nA
10nA 100nA 1
µA10µA 100µA 1mA 10mA
100pA
GAIN ERROR (I
2 = 1µA)
Input Current (I
1 or I2)
–40
°C
+75
°C
–5
°C +25°C
+85
°C
–20
–15
–10
–5
0
5
10
15
20
–20
–15
–10
–5
0
5
10
15
20
I
1
I
2
TOTAL ERROR (–5
°C)
10 to 15
5 to 10
0 to 5
–5 to 0
–20
–15
–10
–5
0
5
10
15
20
–20
–15
–10
–5
0
5
10
15
20
I
1
I
2
5 to 10
0 to 5
–5 to 0
TOTAL ERROR (25
°C)
–20
20
0
40
60
80
100
–20
0
20
40
60
80
100
I
1
I
2
20 to 40
0 to 20
40 to 60
60 to 80
80 to 100
–20 to 0
TOTAL ERROR (70
°C)



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