參數(shù)資料
型號(hào): TSH321ID
廠商: 意法半導(dǎo)體
英文描述: WIDE BANDWIDTH AND MOS INPUTS SINGLE OPERATIONAL AMPLIFIER
中文描述: 寬帶和MOS輸入端單運(yùn)算放大器
文件頁數(shù): 4/6頁
文件大小: 46K
代理商: TSH321ID
V
in
50%
t
d
t
r
90%
t
s
0.1% of edge amplitude
10%
3
TEST WAVEFORM
Input
50
1k
1k
10nF
10
μ
F
C
F
-5V
+5V
10nF
10
μ
F
50
Output
3
EVALUATION CIRCUIT
As for any high frequencydevice, a few rules must
be observedwhendesigningthe PCBto getthe best
performancesfrom this high speedop amp.
From the most to the least important points :
Each power supply lead has to be bypassed
to ground witha 10nF ceramic capacitor very
close to the device and a 10
μ
F tantalum ca-
pacitor.
To providelow inductanceand lowresistance
common return, use a ground plane or com-
mon point return for power and signal.
All leads must be wideand as short as possi-
ble especially for op amp inputs. This is in
order to decrease parasitic capacitance and
inductance.
Use small resistor values to decrease time
constantwith parasiticcapacitance.
Choosecomponentsizesassmall aspossible
(SMD).
On output, decrease capacitor load so as to
avoid circuit stability being degraded which
may cause oscillation. One can also add a
serial resistor in order to minimise its influ-
ence.
One can add in parallelwith feedbackresistor
a few pF ceramic capacitor C
F
adjusted to
optimize the settlingtime.
PRINTED CIRCUIT LAYOUT
TSH321
4/6
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