參數(shù)資料
型號(hào): OPA2228UA2K5
廠商: Texas Instruments, Inc.
英文描述: High Precision, Low Noise OPERATIONAL AMPLIFIERS
中文描述: 高精度,低噪聲運(yùn)算放大器
文件頁(yè)數(shù): 13/27頁(yè)
文件大小: 847K
代理商: OPA2228UA2K5
OPA227, 2227, 4227
OPA228, 2228, 4228
SBOS110A
13
www.ti.com
FIGURE 5. Noise Calculation in Gain Configurations.
Where e
S
=
4kTR
S
= thermal noise of R
S
e
1
=
4kTR
1
= thermal noise of R
1
R
1
e
2
=
4kTR
2
= thermal noise of R
2
2
1
R
Noise at the output:
2
E
R
R
e
e
e
i R
e
i R
R
R
O
n
S
S
2
2
1
2
2
1
2
2
2
2
2
2
2
2
1
2
1
1
=
+
+
+
+
(
)
+
+
(
)
+
Where e
S
=
4kTR
S
= thermal noise of R
S
e
1
=
4kTR
1
= thermal noise of R
1
e
2
=
4kTR
2
= thermal noise of R
2
Noise at the output:
R
R
R
S
2
1
+
R
R
R
S
2
1
+
E
R
+
R
R
e
e
e
i R
e
O
S
n
S
2
2
1
2
2
1
2
2
2
2
2
2
1
=
+
+
+
+
(
)
+
R
1
R
2
E
O
R
1
R
2
E
O
R
S
V
S
R
S
V
S
Noise in Noninverting Gain Configuration
Noise in Inverting Gain Configuration
For the OPA227 and OPA228 series op amps at 1kHz, e
n
= 3nV/
Hz and i
n
= 0.4pA/
Hz.
相關(guān)PDF資料
PDF描述
OPA227U2K5 High Precision, Low Noise OPERATIONAL AMPLIFIERS
OPA227UA2K5 High Precision, Low Noise OPERATIONAL AMPLIFIERS
OPA228UA2K5 High Precision, Low Noise OPERATIONAL AMPLIFIERS
OPA4227UA2K5 High Precision, Low Noise OPERATIONAL AMPLIFIERS
OPA4227UA2K5G4 High Precision, Low Noise OPERATIONAL AMPLIFIERS
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