AD8366ACPZ-R7 datasheet(22/28 Pages) AD

22 / 28 page

AD8366

Rev. A | Page 22 of 28

CHARACTERIZATION SETUPS

Figure 58 and Figure 59 are characterization setups used

extensively to characterize the AD8366. Characterization was

done on single-ended and differential evaluation boards. The

bulk of the characterization was done using an automated VEE

program to control the equipment as shown in Figure 58. This

setup was used to measure P1dB, OIP3, OIP2, IMD2, IMD3,

harmonic distortion, gain, gain error, supply current, and noise

density. All measurements were done with a 200 Ω load. All balun,

output matching network, and filter losses were de-embedded.

Gain error was measured with constant input power. All other

measurements were done on 2 V p-p (4 dBm, re: 200 Ω) on

the output of the device under test (DUT), and 2 V p-p composite

output for two-tone measurements. To measure harmonic

distortion, band-pass and band-reject filters were used on

the input and output of the DUT.

Figure 59 shows the setup used to make differential measurements.

All measurements on this setup were done in a 50 Ω system and

post processed to reference the measurements to a 200 Ω system.

Gain and phase mismatch were measured with 2 V p-p on the

output, and small signal frequency responses were measured

with −30 dBm on the input of the DUT.

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