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參數(shù)資料
| 型號： | OPA637SM |
| 英文描述： | ECONOLINE: RB & RA - Dual Output from a Single Input Rail- Power Sharing on Output- Industry Standard Pinout- 1kVDC & 2kVDC Isolation- Custom Solutions Available- UL94V-0 Package Material- Efficiency to 85% |
| 中文描述： | 精密高速Difet運算放大器 |
| 文件頁數(shù)： | 13/13頁 |
| 文件大?。?/td> | 256K |
| 代理商： | OPA637SM |
13
OPA627, 637
OPA627
OPA637
R
I
, R
1
C
Error Band
(0.01%)
2k
6pF
±
0.5mV
500
4pF
±
0.2mV
NOTE: C
is selected for best settling time performance
depending on test fixture layout. Once optimum value is
determined, a fixed capacitor may be used.
FIGURE 12. High Speed Instrumentation Amplifier, Gain = 100.
–In
+In
+
–
OPA637
Differential Voltage Gain = 1 + 2R
F
/R
G
2
3
–
+
–
+
INA105
Differential
Amplifier
1
6
5
Output
Gain = 100
CMRR 116dB
Bandwidth 1MHz
OPA637
25k
25k
25k
25k
Input Common-Mode
Range = ±5V
3pF
R
F
5k
R
F
5k
R
G
101
–
+
±5V
Out
+15V
2k
C
F
2k
Error Out
R
I
R
I
51
–15V
HP-
5082-
2835
High Quality
Pulse Generator
/
FIGURE 11. Settling Time and Slew Rate Test Circuit.
FIGURE 14. Composite Amplifier for Wide Bandwidth.
This composite amplifier uses the OPA603 current-feedback op amp to
provide extended bandwidth and slew rate at high closed-loop gain. The
feedback loop is closed around the composite amp, preserving the
precision input characteristics of the OPA627/637. Use separate power
supply bypass capacitors for each op amp.
GAIN
(V/V)
A
R
1
(
)
R
2
(k
)
R
3
(
)
R
4
(k
)
–3dB
(MHz)
SLEW RATE
(V/
μ
s)
700
500
OP AMP
100
1000
OPA627
OPA637
50.5
(1)
49.9
4.99
4.99
20
12
1
1
15
11
NOTE: (1) Closest 1/2% value.
*Minimize capacitance at this node.
FIGURE 13. High Speed Instrumentation Amplifier, Gain = 1000.
+
–
OPA603
–
+
A
1
R
3
R
1
R
4
R
2
V
I
V
O
*
R
≥
150
for ±10V Out
–In
+In
+
–
OPA637
Differential Voltage Gain = (1 + 2R
F
/R
G
) 10
2
3
–
+
–
+
INA106
Differential
Amplifier
1
6
5
Output
Gain = 1000
CMRR 116dB
Bandwidth 400kHz
OPA637
10k
10k
100k
100k
Input Common-Mode
Range = ±10V
3pF
R
F
5k
R
F
5k
R
G
101
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