Filter
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Additional Sample Schematics
1-6
Introduction and Description
Figure 1–5. VICR Level Shifter
+
–
THS4140
–
+
V
CC
402 Ω
24.9 Ω
0 Ω
V
IN
AC
0 Ω
0 Ω
RX1
0 Ω
R1b
Rx0
374 Ω
R3b
R3a
374 Ω
R6a
C1
V
OCM
C4
C6
R4b
R4a
0 Ω
0 Ω
Rx4
Rx5
49.9 Ω
49.9 Ω
R10
Rx6
50 Ω
Source
402 Ω
R6B
RX3
49.9 Ω
V
CC
RPU1
RPU2
V
CC–
Note: Shifting the VICR within the specified range in the data sheet via RPU1 and RPU2 if the VICR is out of the specified range.
See the Application section of the data sheet for the THS4140 for more information.
Figure 1–6. Butterworth Filter With Multiple Feedback.
+
–
THS4140
–
+
V
CC
V
CC–
1 dBm
AC
RX1
RX2
R1B
R1A
R2A
R10
RX7
R2B
RX3
R7
R3A
C2
R3B
–5 V
5 V
C1B
C1A
Note: Butterworth filter implemented with multiple feedback architecture