INA210-215EVM Circuit
3
INA210-215EVM Circuit
This section summarizes the INA210-215EVM components.
3.1
R1
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 (.200 in or 5,080 mm). 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
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INA210-215EVM User's Guide
SBOU065A – August 2008 – Revised June 2014
Copyright © 2008–2014, Texas Instruments Incorporated
