3-1
EVM Applications
EVM Applications
Example applications are presented in this chapter. These applications are
meant to demonstrate the most popular circuits to the user, but many other
circuits can be constructed. The user is encouraged to experiment with
different circuits, exploring new and creative design techniques. That is the
function of an evaluation board.
3.1
Noninverting Gain Stages
Figure 3-1. Default Configuration—DC-Coupled, Dual Power Supply, Noninverting Gain
Stage
R2
49.9
Ω
Z1 0
VS-
-
+
U1
THS4601
2
3
6
7
4
Z3
49.9
Ω
R3
100
Ω
J2
Vin+
TP3
Vout
R8
1 k
Ω
Z5
100
Ω
R1
0
VS+
J3
Vout
Z2
0
*Power supply decoupling is not shown
Note:
This schematic reflects the default THS4601EVM configuration.
The gain measured from J2 to J3 is 2 when measured with a high impedance
instrument at TP3 or J3, as determined by:
Vout
V
in
)
+
1
)
Z5
R3
The user might note that R3 and Z5 appear to be rather small resistances.
These values were selected to avoid creating a low pass pole with the input
capacitance of the THS4601.
Chapter 3