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參數(shù)資料
| 型號： | OP97 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low-Power, High-Precision Operational Amplifier |
| 中文描述： | 低功耗，高精度運算放大器 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 363K |
| 代理商： | OP97 |
OP97
–9–
The digitally programmable gain amplifier shown in Figure 10
has 12-bit gain resolution with 10-bit gain linearity over the
range of –1 to –1024. The low bias current of the OP97 main-
tains this linearity, while C1 limits the noise voltage bandwidth
allowing accurate measurement down to microvolt levels.
DIGITAL IN
GAIN (Av)
4095
2048
1024
512
256
128
64
32
16
8
4
2
1
0
–1.00024
–2
–4
–8
–16
–32
–64
–128
–256
–512
–1024
–2048
–4096
OPEN LOOP
Many high-speed amplifiers suffer from less-than-perfect low-
frequency performance. A combination amplifier consisting of a
high precision, slow device like the OP97 and a faster device
such as the OP44 results in uniformly accurate performance
from dc to the high frequency limit of the OP44, which has a
gain-bandwidth product of 23 MHz. The circuit shown in Figure 11
accomplishes this, with the OP44 providing high frequency
amplification and the OP97 operating on low frequency signals
and providing offset correction. Offset voltage and drift of the
circuit are controlled by the OP97.
V
OUT
OP97
2
3
6
0.1 F
+15V
C1
220pF
17
16
PM7541
V
REF
R
FB
1
2
3
18
2.5mV TO 10V
RANGE DEPENDING
ON GAIN SETTING
V
IN
–
15V
0.1 F
+15V
I
OUT 1
I
OUT 2
0.1 F
Figure 10. Precision Programmable Gain Amplifier
OP44
V
OUT
2
3
6
OP97
2
3
6
R2
20k
5
10k
1 F
R1
2k
V
IN
0.1 F
10k
5pF
R2
R1
A
V
=
Figure 11. Combination High-Speed, Precision Amplifier
Figure 12. Combination Amplifier Transient Response
.
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|---|---|
| OP97FP | Low-Power, High-Precision Operational Amplifier |
| OP97FS-REEL | Low-Power, High-Precision Operational Amplifier |
| OP97FS-REEL7 | Low-Power, High-Precision Operational Amplifier |
| OP97FZ | LOW POWER, HIGH PRECISION OPERATIONAL AMPLIFIER |
| OP97AJ | LOW POWER, HIGH PRECISION OPERATIONAL AMPLIFIER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OP-97 | 制造商:AD 制造商全稱:Analog Devices 功能描述:LOW POWER, HIGH PRECISION OPERATIONAL AMPLIFIER |
| OP97_07 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power, High Precision Operational Amplifier |
| OP97AJ | 制造商:AD 制造商全稱:Analog Devices 功能描述:LOW POWER, HIGH PRECISION OPERATIONAL AMPLIFIER |
| OP97AJ/883 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| OP97ARC/883 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low-Power, High-Precision Operational Amplifier |
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