AD12400SLASHKIT datasheet(18/28 Pages) AD

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AD12400

Rev. 0 | Page 18 of 28

AIRFLOW CONDITION

100

110

120

130

TYPICAL JUNCTION

CASE

AMBIENT

NO AIR FLOW

100 LFM

300 LFM

Figure 21. Typical Temperature vs. Air Flow with No Module/Board Interface

Material (Normalized to 60°C Module Case Temperature)

AIRFLOW CONDITION

100

110

120

130

TYPICAL JUNCTION

CASE

AMBIENT

NO AIR FLOW

100 LFM

300 LFM

Figure 22. Typical Temperature vs. Air Flow with T-FLEX Module/Board

Interface Material (Normalized to 60°C Module Case Temperature Ambient)

PACKAGE INTEGRITY/MOUNTING GUIDELINES

The AD12400 is a printed circuit board (PCB) based module

designed to provide mechanical stability and support the

intricate channel-to-channel matching necessary to achieve

high dynamic range performance. The module should be

secured to the motherboard using 2-56 nuts (washer use is

optional). The torque on the nuts should not exceed 32 inch

ounces.

The SMA edge connectors (AIN, ENC/ENC) are surface

mounted to the board in order to achieve minimum height of

the module. When attaching and routing the cables, one must

ensure they are stress-relieved and do not apply stress to the

SMA connector/board. The presence of stress on the cables may

degrade electrical performance and mechanical integrity of the

module. In addition to the routing precautions, the smallest

torque necessary to achieve consistent performance should be

used to secure the system cable to the AD12400’s SMA

connectors. In no case should the torque exceed 5 inch pounds.

Any disturbances to the AD12400 structure, including

removing the covers or mounting screws, will invalidate the

calibration and result in degraded performance. Refer to the

Outline Dimensions section for mounting stud dimensions.

Refer also to Figure 37 for PCB interface locations. Mounting

stud length will typically accommodate a PCB thickness of

0.093". Consult the factory if board thickness requirements

exceed this dimension.

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