Possible configurations

AN2995

6/13

Doc ID 15840 Rev 1

Figure 6.

Compensation: in-loop configuration

3.5

A simple compensation method, using only one extra component, consists in adding a

resistor (Z13) in series between the output of the amplifier and its load. It is often referred to

as the out-of-loop compensation method because the additional component is added

outside of the feedback loop.

Z3, Z5, Z6, Z8, Z9 and Z14 must be "not connected". Z1, Z2 and Z4 must be shorted.

Figure 7.

Compensation: out-of-loop configuration

3.6

AC-coupled circuit configuration

This typical configuration allows you to amplify the AC part only of the input signal. Z2, Z6,

Z7, Z9, Z12 and Z14 must be "not connected". No component is shorted.

Vout

Vin1

Z13

Z12

Z7

Z4

Z9

Z14

AM04505

b.

More information on compensation methods can be found in application note AN2653: Operational amplifier stability

compensation methods for capacitive loading applied to TS507 (see Table 2: Document references).

Vout

Vin1

Z13

Z12

Z7

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