Analog Devices AD8335 Evaluation Board AD8335-EVALZ AD8335-EVALZ Data Sheet
Product codes
AD8335-EVALZ
Evaluation Board for Quad Low Noise,
Low Cost, Variable Gain Amplifier
AD8335-EVAL
Rev. 0
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However, no responsibility is assumed by Analog Devices for its use, nor for any
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However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
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FEATURES
Factory tested and ready to use
SMA input and output connectors (8)
Output test pins for differential probe
Configurable jumpers for user opions:
SMA input and output connectors (8)
Output test pins for differential probe
Configurable jumpers for user opions:
Preamp enables
VGA enables
High/low gain settings
VGA enables
High/low gain settings
Provisions for dynamic gain control
Optional differential to single-ended output transformers
Compact surface-mount layout can be applied to user-
Optional differential to single-ended output transformers
Compact surface-mount layout can be applied to user-
application
Optional differential test pins at the input for instrument
calibration
APPLICATIONS
Hands-on testing of the AD8335
Testing of input and output devices such as ultrasound
Testing of input and output devices such as ultrasound
probes and analog to digital converters
INTRODUCTION
The AD8335-EVAL board enables the user to quickly become
familiar with the operating characteristics and features of the
AD8335 quad VGA. Jumpers provide a convenient means for
exercising the user-selectable features of the AD8335 preamp
enables, VGA enables, and the fixed high and low gain ranges.
Test pins are provided for power and dc gain voltage connections,
and for input calibration and differential probes at the outputs.
Provision is made for driving the gain-control ports with exter-
nally generated waveforms like those used in TGC applications.
familiar with the operating characteristics and features of the
AD8335 quad VGA. Jumpers provide a convenient means for
exercising the user-selectable features of the AD8335 preamp
enables, VGA enables, and the fixed high and low gain ranges.
Test pins are provided for power and dc gain voltage connections,
and for input calibration and differential probes at the outputs.
Provision is made for driving the gain-control ports with exter-
nally generated waveforms like those used in TGC applications.
All channels are tested for gain accuracy and functionality. The
board is shipped with all the preamp and VGA channels enabled,
and the low-gain mode selected. Jumpers are included to con-
nect differential to single-ended output transformers, but the
connections are open.
board is shipped with all the preamp and VGA channels enabled,
and the low-gain mode selected. Jumpers are included to con-
nect differential to single-ended output transformers, but the
connections are open.
EVALUATION BOARD
Figure 1.