ADA4938-2_15 Datasheet, PDF (17/28 Pages) Analog Devices – Ultralow Distortion Differential ADC Driver

TEST CIRCUTS
ADA4938-1/ADA4938-2
200Ω
+5V
50Ω
200Ω
V_IN
61.9Ω
V_OCM
ADA4938
1kΩ
200Ω
27.5Ω
–5V
200Ω
Figure 54. Equivalent Basic Test Circuit
200Ω
+5V
50Ω
200Ω
50Ω
V_IN
61.9Ω
V_OCM
ADA4938
200Ω
50Ω
27.5Ω
–5V
200Ω
Figure 55. Test Circuit for Output Balance
50Ω
V_IN
FILTER
200Ω
200Ω
+5V
0.1µF _412Ω
61.9Ω
V_OCM
200Ω
ADA4938
0.1µF _412Ω
27.5Ω
–5V
200Ω
Figure 56. Test Circuit for Distortion Measurements
FILTER
Rev. A | Page 17 of 28