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參數(shù)資料
| 型號： | LOG101AIDRE4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬運算功能 |
| 英文描述： | LOG OR ANTILOG AMPLIFIER, 0.01 MHz BAND WIDTH, PDSO8 |
| 封裝： | PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 468K |
| 代理商： | LOG101AIDRE4 |
www.ti.com
LOG101
4
SBOS242B
TYPICAL CHARACTERISTICS
At TA = +25°C, VS = ±5V, and RL = 10k, unless otherwise noted.
0
ONE CYCLE OF NORMALIZED TRANSFER FUNCTION
Normalized
Output
Voltage
(V)
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
26
110
3
Current Ratio, I
1/I2
48
4.0
3.0
2.0
1.0
0.0
–1.0
–2.0
–3.0
–4.0
Normalized
Output
V
oltage
(V)
NORMALIZED TRANSFER FUNCTION
0.0001 0.001
0.01
0.1
1
10
100
1k
10k
Current Ratio, I
1/I2
V
OUT = 1V LOG (I1/I2)
3dB FREQUENCY RESPONSE
3dB
Frequency
Response
(Hz)
0.1
1M
100k
10k
1k
100
10
1
100
A
100
A
1mA
I
1 = 1mA
1
A
1mA
to 10
A
100nA
10nA
I
1 = 1nA
10nA
C C
= 1000pF
C C
= 1
F
10
A to
1
A
C C
= 1
0p
F
1nA
100
A
100pA
1nA
10nA
100nA
1
A10A 100A1mA
I
2
1
A
10
A
100
A
I
1 = 1nA
10nA
120
100
80
60
40
20
0
100pA 1nA
10nA 100nA
1
A10A 100A 1mA 10mA
TOTAL ERROR vs INPUT CURRENT
Input Current (I
1 or I2)
T
otal
Error
(mV)
+75
°C
+25
°C –5°C
5.8
4.8
3.8
2.8
1.8
0.8
–0.2
100pA 1nA
10nA 100nA 1
A10A 100A 1mA 10mA
GAIN ERROR (I
2 = 1A)
Input Current (I
1 or I2)
Gain
Error
(%)
–5
°C to –40°C
+85
°C
+75
°C
+25
°C
MINIMUM VALUE OF COMPENSATION CAPACITOR
100M
10M
1M
100k
10k
1k
100
10
1
C
(pF)
100pA
1nA
10nA 100nA
1
A10A 100A 1mA 10mA
I
2
I
1 = 100pA
I
1 = 1nA
I
1 = 10nA
I
1 = 100nA
1
A
I
1 = 10A
100
A
1mA
Select C
C for I1 min.
and I
2 max. Values
below 2pF may be ignored.
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