TSH10 Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
TSH10 Datasheet PDF : 5 Pages
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TSH10
EVALUATION CIRCUIT
+5V
10m F
50W
Input
1kW
10nF
50W
Output
10nF
t(s) 10mF
c -5V 1kW
te Produ t(s) CF
le uc PRINTED CIRCUIT LAYOUT
so rod As for any high frequency device, a few rules must
be observed when designing the PCB to get the
b P best performances from this high speed op amp.
- O te From the most to the least important points :
) le u Each power supply lead has to be by-
t(s o passed to ground with a 10nF ceramic ca-
s pacitor very close to the device and a 10µF
c b tantalum capacitor.
u O u To provide low inductance and low resist-
d - ance common return, use a ground plane
ro ) or common point return for power and sig-
P t(s nal.
te c u All leads must be wide and as short as pos-
u sible especially for op amp inputs. This is in
le d order to decrease parasitic capacitance
OObbssoolete Pro and inductance.
u Use small resistor values to decrease time
constant with parasitic capacitance. Be
aware on TSH10 device of the Iio error and
input noise currents with high feedback re-
sistor values.
u Choose component sizes as small as pos-
sible (SMD).
u 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.
u One can add in parallel with feedback re-
sistor a few pF ceramic capacitor CF adjust-
ed to optimize the settling time.
4/5
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