參數(shù)資料
型號: LOG114AIRGVT
元件分類: 對數(shù)放大器
英文描述: Single-Supply, High-Speed, Precision LOGARITHMIC AMPLIFIER
中文描述: 單電源,高速,精密對數(shù)放大器
文件頁數(shù): 9/30頁
文件大?。?/td> 616K
代理商: LOG114AIRGVT
"#$$%
SBOS301A MAY 2004 REVISED MARCH 2007
www.ti.com
9
TYPICAL CHARACTERISTICS: V
S
= 5V (continued)
All specifications at T
A
= +25
°
C, R
VLOGOUT
= 10k
, V
CM
= GND, unless otherwise noted. For ac measurements, small signal means up to approximately 10% of dc
level.
0.45
0.40
0.35
0.30
0.25
0.20
1nA
10nA 100nA
1
μ
A
10
μ
A 100
μ
A 1mA
10mA
100pA
6 DECADE LOG CONFORMITY vs I
REF
I
REF
(I
1
)
L
10 C, 0 C, +25 C
+70 C
+80 C
+90 C
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
1nA
10nA 100nA
1
μ
A
10
μ
A 100
μ
A 1mA
10mA
100pA
8 DECADE LOG CONFORMITY (100pA to 3.5mA)
Input Current (I
1
or I
2
)
L
0 C
+70 C
+80 C
+25 C
10 C
+90 C
20
10
0
10
20
30
40
100
1k
10k
100k
1M
10M
100M
10
SMALLSIGNAL V
LOGOUT
Frequency (Hz)
N
L
(
10mA
1
μ
A
10nA
100nA
10
μ
A
100
μ
A
1mA
0
5
10
15
20
25
30
35
40
45
50
1k
10k
100k
1M
10M
100M
100
SMALLSIGNALAC RESPONSE I
1
(10% sine modulation)
Frequency (Hz)
N
1
μ
A
10nA
100nA
1nA
1mA
100
μ
A
10
μ
A
0
5
10
15
20
25
30
35
40
45
50
1k
10k
100k
1M
10M
100M
100
SMALLSIGNALAC RESPONSE I
2
(10% sine modulation)
Frequency (Hz)
N
1
μ
A
10nA
100nA
1nA
1mA
100
μ
A
10
μ
A
160
140
120
100
80
60
40
20
0
20
40
40M
100
1k
10k
100k
A
3
GAIN AND PHASE vs FREQUENCY
Frequency (Hz)
G
225
180
135
90
45
0
P
1M
10M
Gain
Phase
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