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參數(shù)資料
| 型號(hào)： | INA103 |
| 元件分類(lèi)： | 測(cè)量放大器 |
| 英文描述： | Single Supply, Rail-to-Rail, Low Cost Instrumentation Amplifier |
| 中文描述： | 單電源，軌至軌，低成本儀表放大器 |
| 文件頁(yè)數(shù)： | 11/12頁(yè) |
| 文件大?。?/td> | 297K |
| 代理商： | INA103 |
INA103
11
12
7
5
R
G
16
15
13
14
6
2
1
INA103
V
OUT
R
F
11
10
R
F
G = 1+
2R
R
G
F
NOTE: AD625 equivalent pinout.
V
IN
R
F
> 10k
can increase noise and reduce bandwidth—see text.
FIGURE 7. Gain Adjustment of Output Stage.
FIGURE 8. Use of External Resistors for Gain Set.
OUTPUT STAGE
GAIN
R
1
and R
3
(k
)
1k
1.2k
1.2k
R
2
(
)
2.4k
632
273
2
5
10
(R
2
|| 12k) + R
1
+ R
3
(R
2
|| 12k)
Output Stage Gain =
1110
7
16
15
13
14
6
2
1
INA103
V
OUT
R
3
R
2
R
1
V
IN
A common problem with many IC op amps and instrumentation amplifiers is shown in (a). Here, the amplifier’s input is driven beyond its linear common-mode
range, forcing the output of the amplifier into the supply rails. The output then “folds back”, i.e., a more positive input voltage now causes the output of the amplifier
to go negative. The INA103 has protection circuitry to prevent fold-back, and as shown in (b), limits cleanly.
(a) AD625 G = 1, V
IN
=
±
15V, R
L
= 600
(b) INA103 G = 1, V
IN
=
±
15V, R
L
= 600
FIGURE 9. INA103 Overload Condition Performance.
11
10
7
V
IN
16
15
13
14
6
2
1
INA103
V
OUT
R
G
V+
V–
MJ15012
100
MJ15011
(To headphone
or speaker)
Buffer inside feedback loop
1110
7
16
15
13
14
6
2
1
INA103
20
CMR
Trim
10
V
IN
Gain = 1V/V
(0dB)
Introduces
approximately
+0.2% Gain Error.
FIGURE 11. Increasing Output Circuit Drive.
FIGURE 10. Optional Circuit for Externally Trimming CMR.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| INA103_07 | 制造商:BB 制造商全稱(chēng):BB 功能描述:Low Noise, Low Distortion INSTRUMENTATION AMPLIFIER |
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| INA-10386 | 制造商:AGILENT 功能描述:_ |
| INA-10386-BLK | 制造商:AGILENT 制造商全稱(chēng):AGILENT 功能描述:Low Noise, Cascadable Silicon Bipolar MMIC Amplifier |
| INA-10386-TR1 | 制造商:AGILENT 制造商全稱(chēng):AGILENT 功能描述:Low Noise, Cascadable Silicon Bipolar MMIC Amplifier |
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