Datasheet

DocID7502 Rev 4 25/36
TSH7x Testing conditions
36
A feedback capacitance, C
f
, should be added for better stability. Table 11 summarizes the
impact of the capacitance C
f
on the phase margin of the circuit.
Table 11. Impact capacitance C
f
Parameter C
f
(pF) V
CC
= ±1.5 V V
CC
= ±2.5 V V
CC
= ±5 V Unit
Phase margin
0
28 43 56 deg
f-3 dB 40 39.3 38.3 MHz
Phase margin
5.6
30 43 56 deg
f-3 dB 40 39.3 38.3 MHz
Phase margin
22
37 52 67 deg
f-3 dB 37 34 32 MHz
Phase margin
33
48 65 78 deg
f-3 dB 33.7 30.7 27.6 MHz