ad8260 Analog Devices, Inc., ad8260 Datasheet - Page 19

• Manufacturer Part Number: ad8260
• Description: High Current Driver Amplifier And Digital Vga/preamplifier With 3 Db Steps
• Manufacturer: Analog Devices, Inc.

Figure 63. Test Circuit for IP1dB, Pulse Response, Overdrive Recovery, and Gain Response of the VGA/Preamplifier
50Ω
SIGNAL
GENERATOR
FILTER
LP
Figure 62. Test Circuit for Harmonic Distortion Measurements of the VGA/Preamplifier
50Ω
50Ω
50Ω
0.1µF
0.1µF
+
AD8260—VGA/PREAMPLIFIER
PREAMP
–
+
PREAMP
–
AD8260—VGA/PREAMPLIFIER
Rev. 0 | Page 19 of 32
VMDO
VMDO
100Ω
100Ω
100Ω
100Ω
0.1µF
0.1µF
475Ω
475Ω
IN
OSCILLOSCOPE
1:1
50Ω
IN
50Ω
SPECTRUM
ANALYZER
AD8260