Texas Instruments INA199 Evaluation Module INA199EVM INA199EVM Datenbogen
Produktcode
INA199EVM
+
+
V+
C
1
R
4
R
3
V
OUT
V
CM
V
DIFF
V
IN+
V
IN
-
REF
INA199AxEVM
INA199A1
DIP
+
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Quick Start Setup and Use
2.2
Measurement without Shunt
This connection method allows the user to either simulate the voltage developed across a sense resistor
based on a given set of system conditions, or to connect the INA199A1-A3EVM remotely to an existing
shunt already included in an example application.
based on a given set of system conditions, or to connect the INA199A1-A3EVM remotely to an existing
shunt already included in an example application.
illustrates a measurement configuration without
a shunt.
To configure a measurement evaluation without a shunt, follow these procedures.
1. Connect a differential voltage to the V
IN+
and V
IN–
terminals of T2. With the reference voltage set at
ground, ensure that the V
IN+
terminal is the more positive of the two inputs.
2. Measure the output voltage at the V
OUT
terminal of T2.
Figure 3. Measurement without Shunt
NOTE:
The output voltage is equal to the gain of the device multiplied by the differential voltage
measured directly at the device input pins.
5
SBOU085 – May 2010
INA199A1-A3EVM
Copyright © 2010, Texas Instruments Incorporated