参数资料
型号: TSH11IN
英文描述: Voltage-Feedback Operational Amplifier
中文描述: 电压反馈运算放大器
文件页数: 4/5页
文件大小: 34K
代理商: TSH11IN
TSH11
4/5
EVALUATION CIRCUIT
PRINTED CIRCUIT LAYOUT
As for any high frequency device, a few rules must
be observed when designing the PCB to get the
best performances from this high speed op amp.
From the most to the least important points :
K
Each power supply lead has to be by-
passed to ground with a 10nF ceramic ca-
pacitor very close to the device and a 10
μ
F
tantalum capacitor.
K
To provide low inductance and low resist-
ance common return, use a ground plane
or common point return for power and sig-
nal.
K
All leadsmust be wide and as short as pos-
sible especiallyfor op amp inputs. Thisis in
order to decrease parasitic capacitance
and inductance.
K
Use small resistor values to decrease time
constant with parasitic capacitance.
K
Choose component sizes as small as pos-
sible (SMD).
K
On output, decrease capacitor load so as
to avoid circuit stability being degraded
which may cause oscillation. You can also
add a serial resistor in order to minimise its
influence.
K
One can add in parallel with feedback re-
sistor afew pF ceramic capacitor C
F
adjust-
ed to optimize the settling time.
Input
50
1k
10nF
10
μ
F
CF
-5V
+5V
10nF
Output
50
10
μ
F
1k
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