參數(shù)資料
型號: 5962L0620602VZA
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 運算放大器
英文描述: DUAL OP-AMP, 60 uV OFFSET-MAX, 3 MHz BAND WIDTH, CDSO10
封裝: CERAMIC, SOIC-10
文件頁數(shù): 14/14頁
文件大?。?/td> 365K
代理商: 5962L0620602VZA
20182219
FIGURE 5.
TABLE 1. Composite Amplifier Measured Performance
AV
R1
R2
C2
pF
BW
MHz
SR
(V/
μs)
en p-p
(mV
PP)
50
200
10k
8
3.3
178
37
100
10k
10
2.5
174
70
100
1k
100k
0.67
3.1
170
70
500
200
100k
1.75
1.4
96
250
1000
100
100k
2.2
0.98
64
400
In terms of the measured output peak-to-peak noise, the fol-
lowing relationship holds between output noise voltage, e
n p-
p, for different closed-loop gain, A
V, settings, where 3 dB
Bandwidth is BW:
20182220
FIGURE 6.
It should be kept in mind that in order to minimize the output
noise voltage for a given closed-loop gain setting, one could
minimize the overall bandwidth. As can be seen from Equa-
tion 1 above, the output noise has a square-root relationship
to the Bandwidth.
In the case of the inverting configuration, it is also possible to
increase the input impedance of the overall amplifier, by rais-
ing the value of R1, without having to increase the feed-back
resistor, R2, to impractical values, by utilizing a "Tee" network
as feedback. See the LMC6442 data sheet (Application Notes
section) for more details on this.
20182221
FIGURE 7.
9
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