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參數(shù)資料
| 型號(hào)： | AMP03GBC |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Precision, Unity-Gain Differential Amplifier |
| 中文描述： | INSTRUMENTATION AMPLIFIER, 1500 uV OFFSET-MAX, 3 MHz BAND WIDTH, UUC7 |
| 封裝： | 0.076 X 0.076 INCH, DIE-7 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大小： | 281K |
| 代理商： | AMP03GBC |
AMP03
–6–
REV. E
ECM
+V
0.1
m
F
0.1
m
F
–V
V
SIGNAL
GROUND REFERENCE 1
GROUND REFERENCE 2
(GROUND REFERENCE 2)
V
OUT
= –V
SIGNAL
AMP03
Figure 20. AMP03 Serves to Reject Common-Mode Volt-
ages in Instrumentation Systems. Common-Mode Volt-
ages Occur Due to Ground Current Returns. V
SIGNAL
and
E
CM
Must Be Within the Common-Mode Range of AMP03.
APPLICATIONS INFORMATION
The AMP03 represents a versatile analog building block. In
order to capitalize on fast settling time, high slew rate and high
CMR, proper decoupling and grounding techniques must be
employed. Figure 20 illustrates the use of 0.1
μ
F decoupling
capacitors and proper ground connections.
MAINTAINING COMMON-MODE REJECTION
In order to achieve the full common-mode rejection capability
of the AMP03, the source impedance must be carefully con-
trolled. Slight imbalances of the source resistance will result in a
degradation of DC CMR—even a 5
imbalance will degrade
CMR by 20 dB. Also, the matching of the reactive source im-
pedance must be matched in order to preserve the CMRR over
frequency.
APPLICATION CIRCUITS
AMP03
R
1
25k
V
R
2
25k
V
R
3
25k
V
R
4
25k
V
+IN E
2
–IN E
1
E
0
= E
2
–E
1
Figure 21. Precision Difference Amplifier. Rejects
Common-Mode Signal = (E
1
+ E
2
)/2 by 100 dB
AMP03
E
1
E
0
= –E
1
Figure 22. Precision Unity-Gain Inverting Amplifier
AMP03
+15V
–10V OUT
0.1
m
F
REF10
+10V OUT
Figure 23.
6
10 V Precision Voltage Reference
+15V
–5V OUT
0.1
m
F
REF10
+5V OUT
AMP03
Figure 24.
6
5 V Precision Voltage Reference
AMP03
E
1
E
2
E
0
= E
1
+ E
2
Figure 25. Precision Summing Amplifier
AMP03
R
2
R
1
E
1
E
2
E
0
= (R
2
/R
1
+1)E
1
= E
2
2
Figure 26. Precision Summing Amplifier with Gain
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