User`s guide

19
Dynamic Range and Offset Voltage Limitations
Configuration 3: Copper Pads with Flex Ground
Bandwidth with N2795A: 900 MHz*
Bandwidth with N2796A: 1.8 GHz*
*Highly dependent on the number of ground connections between the copper pad and
the device under test
Replacement Kit Part Numbers (the quantities are the amounts shipped in the
replacement kits, not the quantity included with the probe):
Copper Pads: 0960-2908 (qty. 10)
Flex Ground: 5061-7397 (qty. 2)
These self adhesive copper pads can be attached on top of an IC and connected to its
ground pins to create a convenient ground plane for the probe to connect to. When used
with the flex ground, this method provides an ideal ground connection for probing signals
with high frequency content. However, to maximize the performance of this setup, you
need to solder as many jumper wires as is practical from the ground pins of the package
to the copper pad. The more ground connections, the less inductance in the ground path
and the higher the bandwidth capability of the measurement. Insert the Flex Ground and
bend it into a shape that makes it easy to contact the copper ground pad on top of the
package.