参数资料
型号: AD8072ARM-EBZ
厂商: Analog Devices Inc
文件页数: 1/8页
文件大小: 0K
描述: BOARD EVAL FOR AD8072ARM
标准包装: 1
系列: *

Evaluation Board User Guide
UG-129
One Technology Way ? P.O. Box 9106 ? Norwood, MA 02062-9106, U.S.A. ? Tel: 781.329.4700 ? Fax: 781.461.3113 ? www.analog.com
Universal Evaluation Board for Dual High Speed Op Amps
in MSOP Packages
FEATURES
Enables quick breadboarding/prototyping
User-defined circuit configuration
Edge-mounted SMA connector provisions
Easy connection to test equipment and other circuits
RoHS compliant
GENERAL DESCRIPTION
The Analog Devices, Inc., high speed universal evaluation
board (EB-O8RM-2Z) is designed to help customers quickly
prototype new dual op amp circuits and reduce design time.
The evaluation board can be used with almost any Analog
Devices dual op amp in various configurations and applications.
Figure 1 shows the component side of the bare evaluation board,
and Figure 2 shows the circuit side of the bare evaluation board.
The evaluation board is a 2-layer PCB that accepts SMA con-
nectors on the input and output for efficient connection to test
equipment. The ground plane, component placement, and supply
bypassing are laid out to minimize parasitic inductances and
There are two options for supply bypassing. The first option is
connecting additional shunt capacitors (C3, C4) in parallel with
the electrolytic capacitors (C1, C2) from each supply to ground.
This technique of power supply bypassing provides wideband
rejection of unwanted noise on the supply lines. It is implemented
by placing a 0 Ω resistor in the C5 position and shunt capacitors
in the C1, C2, C3, and C4 positions.
The second approach to supply bypassing is to connect one
capacitor between the supply rails. This method uses fewer
components and can improve the power supply rejection ratio
(PSRR) at higher frequencies. It is implemented by inserting a 0 Ω
resistor in the C3 position, inserting the bypass capacitor in the C4
position, and omitting C5. Optimal bypassing is circuit dependent
and therefore must be evaluated by the designer.
Figure 3 shows the evaluation board schematic. Figure 4 and
Figure 6 show the evaluation board assembly drawings. The
PCB layout pattern for the component side is shown in Figure 5,
and the PCB layout pattern for the circuit side is shown in
capacitances. The evaluation board components are primarily
SMT 0805 case size, with the exception of the electrolytic
bypass capacitors (C1, C2), which are 3528 case size.
EVALUATION BOARD COMPONENT AND CIRCUIT SIDE DIAGRAMS
NOTES
1. THE EVALUATION BOARD SILKSCREEN PART
NUMBER LABELING ON YOUR BOARD MAY BE
DIFFERENT FROM WHAT IS SHOWN HERE.
Figure 1. EB-O8RM-2Z Component Side of Evaluation Board
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 8
NOTES
1. THE EVALUATION BOARD SILKSCREEN PART
NUMBER LABELING ON YOUR BOARD MAY BE
DIFFERENT FROM WHAT IS SHOWN HERE.
Figure 2. EB-O8RM-2Z Circuit Side of Evaluation Board
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