AD9238BST-65PCBZ Analog Devices Inc, AD9238BST-65PCBZ Datasheet - Page 44

• Manufacturer Part Number: AD9238BST-65PCBZ
• Description: BOARD EVAL WITH AD9238BST-65
• Manufacturer: Analog Devices Inc

Specifications of AD9238BST-65PCBZ

• Number Of Adc's: 2
• Number Of Bits: 12
• Sampling Rate (per Second): 65M
• Data Interface: Parallel
• Inputs Per Adc: 1 Differential
• Input Range: 2 Vpp
• Power (typ) @ Conditions: 640mW @ 65MSPS
• Voltage Supply Source: Single
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD9238-65
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9238
Figure 58. PCB Bottom-Side Silkscreen
THERMAL CONSIDERATIONS
The AD9238 LFCSP has an integrated heat slug that improves
the thermal and electrical properties of the package when locally
attached to a ground plane at the PCB. A thermal (filled) via array
to a ground plane beneath the part provides a path for heat to
escape the package, lowering junction temperature. Improved
electrical performance also results from the reduction in package
parasitics due to proximity of the ground plane. Recommended
array is 0.3 mm vias on 1.2 mm pitch. θ
= 26.4°C/W with this
JA
recommended configuration. Soldering the slug to the PCB is a
requirement for this package.
Figure 59. Thermal Via Array
Rev. C | Page 44 of 48