參數(shù)資料
型號(hào): AMP03FJ
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: OP-AMP, 1000 uV OFFSET-MAX, 3 MHz BAND WIDTH, MBCY8
封裝: METAL CAN-8
文件頁數(shù): 7/8頁
文件大小: 281K
代理商: AMP03FJ
AMP03
–7–
REV. E
System Design
Requirement
Suggested Op Amp
For A1 and A2
Source Impedance Low, Need Low
Voltage Noise Performance
OP27, OP37
OP227 (Dual Matched)
OP270 (Dual)
OP271
OP470
OP471
Source Impedance High
(R
S
15 k
). Need Low Current
Noise
OP80
OP41
OP43
OP249
OP97
Require Ultrahigh Input Impedance
OP80
OP97
OP41
OP43
Need Wider Bandwidth and High
Speed
OP42
OP43
OP249
AMP03
OP80EJ
LOAD
I
0
I
0
= (E
1
– E
2
)/R
E
1
E
2
R
Figure 27. Differential Input Voltage-to-Current Converter
for Low I
OUT
. OP80EJ Maintains 250 fA Max Input Current,
Allowing I
O
to Be Less Than 1 pA
AMP03
R
2
R
2
R
1
–IN E
1
+IN E
2
A
1
A
2
E
0
OUTPUT
E
0
= (1 + 2R
2
/R
1
) (E
2
– E
1
)
Figure 28. Suitable Instrumentation Amplifier Requirements
Can Be Addressed by Using an Input Stage Consisting of A
1
,
A
2
, R
1
and R
2
. The Following Matrix Suggests a Suitable
Amplifier.
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