参数资料
型号: LOG112AIDRE4
厂商: TEXAS INSTRUMENTS INC
元件分类: 模拟运算功能
英文描述: LOG OR ANTILOG AMPLIFIER, 1.4 MHz BAND WIDTH, PDSO14
封装: GREEN, PLASTIC, MS-012AB, SOIC-14
文件页数: 17/20页
文件大小: 621K
代理商: LOG112AIDRE4
LOG112, 2112
6
SBOS246D
www.ti.com
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = ±5V, and RL = 10k, unless otherwise noted.
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.
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
= 10pF
1nA
100
A
100pA
1nA
10nA
100nA
1
A10A 100A
1mA
I
2
1
A
10
A
100
A
I
1 = 1nA
10nA
17
15
13
11
9
7
5
3
1
–1
Input Current (I
1 or I2)
Log
Conformity
(mV)
LOG CONFORMITY vs INPUT CURRENT
+85
°C
+75
°C
–40
°C to +25°C
100pA
1nA
10nA
100nA
1
A10A 100A1mA
LOG CONFORMITY vs TEMPERATURE
Log
Conformity
(m%)
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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