User Guide
EVAL-ADMV8526
EVALUATION BOARD HARDWARE
analog.com
Rev. 0 | 3 of 17
The ADMV8526-EVALZ has the
ADMV8526
chip on board. The
ADMV8526-EVALZ also includes a negative voltage generator and
three LDO regulators to provide the necessary supply voltages for
the chip. The regulators can be entirely powered by the 5 V USB
supply voltage from the PC via the
SDP-S
.
To power the ADMV8526-EVALZ using the 5 V USB supply, slide
the S1 switch to select USB (as shown in
Figure 2
) to power the on-
board negative voltage generator and LDO regulators. Alternatively,
the ADMV8526-EVALZ can be powered externally by sliding the S1
switch to select EXT and then connecting the power supplies to
the VPOS and VNEG Subminiature Version A (SMA) ports or test
points. The applicable voltage range for the positive input VPOS is
between 3.5 V and 5.5 V, and the applicable voltage range for the
negative input VNEG is between −5.5 V and −2.7 V.
Figure 2
shows an example lab bench setup for the ADMV8526-
EVALZ. To observe the filter response from the ADMV8526-EVALZ,
connect the RF1 and RF2 ports to a network analyzer (or similar
instrument). Typically, RF1 and RF2 are connected to Port 1 and
Port 2 on the network analyzer, as shown in
Figure 2
.
Figure 2. ADMV8526-EVALZ Lab Bench Setup
