TSH93I datasheet(4/8 Pages) STMICROELECTRONICS

4 / 8 page

TSH93

4/8

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 :

u Each power supply lead has to be bypassed to ground with a 10nF ceramic capacitor very close

to the device and a 10

µF capacitor.

u To provide low inductance and low resistance common return, use a ground plane or common point

return for power and signal.

u All leads must be wide and as short as possible especially for op amp inputs. This is in order to

decrease parasitic capacitance and inductance.

u Use small resistor values to decrease time constant with parasitic capacitance.

u Choose component sizes as small as possible (SMD).

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.

INPUT OFFSET VOLTAGE DRIFT VERSUS

TEMPERATURE

LARGE SIGNAL FOLLOWER RESPONSE

STATIC OPEN LOOP VOLTAGE GAIN

SMALL SIGNAL FOLLOWER RESPONSE

TSH93I 데이터시트(PDF) 4 Page - STMicroelectronics