Datasheet

AD8260
Rev. A | Page 16 of 32
TEST CIRCUITS
INRP
–
+
NETWORK ANALYZER
VOCM
453Ω
INRN
50
Ω
INOUT
0.1µF
5pF
0.1µF
50Ω
AD8260—HIGH CURRENT DRIVER
TXFB
TXOP
VMDO
50Ω
0.1µF
+
–
07192-151
Figure 51. Test Circuit for Frequency Response of the High Current Driver
IN
50Ω
INRP
–
+
VOCM
INRN
0.1µF
0.1µF
0.1µF
TXFB
TXOP
–
+
VMDO
SPECTRUM
ANALYZER
07192-152
AD8260—HIGH CURRENT DRIVER
Figure 52. Test Circuit for Input-Referred and Output-Referred Noise of the High Current Driver
NETWORK ANALYZER
WITH S-PARAMETER MODE
IN
50Ω
INRP
VOCM
INRN
0.1µF
0.1µF
TXFB
TXOP
+3.3V
–3.3V
–
+
07192-153
AD8260—HIGH
CURRENT DRIVER
Figure 53. Test Circuit for Output Impedance of the High Current Driver
SIGNAL
GENERATOR
50Ω
LP
FILTER
IN
50Ω
INRP
VOCM
INRN
0.1µF
0.1µF
0.1µF
TXFB
TXOP
VMDO
SPECTRUM
ANALYZER
50Ω
50Ω
R
LOAD
C
LOAD
1:1
07192-154
AD8260—HIGH CURRENT DRIVER
–
+
Figure 54. Test Circuit for Harmonic Distortion of the High Current Driver