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| 型号： | H51275 |
| 厂商： | Intersil Corporation |
| 英文描述： | 8.5MHz, Ultra-Low Noise Precision Operational Amplifier |
| 中文描述： | 8.5MHz，超低噪声精密运算放大器 |
| 文件页数： | 5/9页 |
| 文件大小： | 634K |
| 代理商： | H51275 |
5
FN2906.6
July 27, 2005
Application Information
FIGURE 3. SUGGESTED OFFSET VOLTAGE ADJUSTMENT
Low resistances are preferred for low noise applications as a 1k
resistor has 4nV/
√
Hz of thermal noise. Total resistances of greater than 10k
on either
input can reduce stability. In most high resistance applications, a few picofarads of capacitance across the feedback resistor will improve stability.
FIGURE 4. SUGGESTED STABILITY CIRCUITS
Typical Performance Curves
Unless Otherwise Specified: T
A
= 25
o
C, V
SUPPLY
=
±
15V
FIGURE 5. TYPICAL OFFSET VOLTAGE DRIFT vs TEMPERATURE
FIGURE 6. NOISE CHARACTERISTICS
NOTE: Tested Offset Adjustment Range is |V
OS
+ 1mV| minimum referred to output. Typical range is
±
4mV with R
T
= 10k
.
1
2
3
4
8
7
6
5
+
-
R
T
10K
V+
R
1
C
3
R
2
R
3
R
1
C
S
R
2
R
3
+
-
+
-
30
20
10
0
-10
-20
-30
-40
-50
-60
O
μ
V
-60
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (
o
C)
12
10
8
6
4
2
0
N
√
H
1
10
100
1K
10K
100K
1M
6
5
4
3
2
1
0
NOISE VOLTAGE
NOISE CURRENT
N
√
H
FREQUENCY (Hz)
HA-5127, HA-5127A
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