3
INA210-214EVM Circuit
3.1
R1
INA210-214EVM Circuit
www.ti.com
This section summarizes the INA210-214EVM components.
R1 can be used for shunt resistors that have a package that may not be easily adaptable to a standard,
two-terminal, through-hole footprint or to a 0603 through 1206 surface-mount footprint. Specifically, this
component location was added to allow the use of TO-126, TO-220, TO-247, and four terminal inline
radial packages such as the CS3 series of shunts from Ohmite. The numbers located on the printed circuit
board (PCB) between R1 and J1 correspond to each of the holes in the R1 footprint. Holes with the same
number are connected together. The designation of
1
and
2
indicates that a particular hole is connected
directly to the V
IN+
and V
IN–
inputs, respectively. The designation of
3
and
4
indicates that a particular hole
is intended for the sense measurement of a four-wire shunt. Care must be taken to ensure that the shunt
is placed in the correct position in the R1 location. This placement consideration is evident when using a
two-connection shunt with a spacing of 200 mils (.200in or 5,080mm). As shown in
and
the shunt must be placed in the second
1
-designated hole in order for the other leg to fit into the
2
position. If the shunt is placed in the first
1
position, the second leg is left floating; no differential voltage
will be generated for the current monitor.
Additional packages can be tested by using the provided prototype area of the board.
Figure 4. TO-247 Package In R1
Figure 5. CS3 Package in R1
6
INA210-214EVM User's Guide
SBOU065 – August 2008
