參數(shù)資料
型號(hào): OPA336UJ
英文描述: SINGLE-SUPPLY, microPower CMOS OPERATIONAL AMPLIFIERS microAmplifier Series
中文描述: 單電源,微功耗CMOS運(yùn)算放大器microAmplifier系列
文件頁數(shù): 8/8頁
文件大?。?/td> 275K
代理商: OPA336UJ
8
OPA336, 2336, 4336
For example, with R
L
= 25k
, OPA336 series op amps
perform well with capacitive loads in excess of 1000pF
(Figure 4). Without R
S
, capacitive load drive is typically
350pF for these conditions (see Figure 5).
Alternatively, the resistor may be connected in series with
the output outside of the feedback loop. However, if there is
a resistive load parallel to the capacitive load, it and the
series resistor create a voltage divider. This introduces a DC
error at the output. However, this error may be insignificant.
For instance, with R
L
= 100k
and R
S
= 100
, there is only
about a 0.1% error at the output.
Figure 5 shows the recommended operating regions for the
OPA336. Decreasing the load resistance generally improves
capacitive load drive. Figure 5 also illustrates how stability
differs depending on where the resistive load is connected.
With G = +1 and R
L
= 10k
connected to V
S
/2, the OPA336
can typically drive 500pF. Connecting the same load to
ground improves capacitive load drive to 1000pF.
FIGURE 5. Stability—Capacitive Load vs Resistive Load.
V
S
= +5V, V
O
= V
S
/2
C
Resistive Load (k
)
10
5
100
10k
1k
100
Operation Above Selected Gain
Curve Not Recommended
G = +1
R
L
to Ground
G = +2
R
L
to Ground
G = +1
R
L
to V
S
/2
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參數(shù)描述
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