Datasheet

INA149EVM Hardware

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2.5 Prototype Area

For flexible evaluation, the INA149EVM has a small prototyping area. This area is intended to be used

with devices mounted on 8-pin DIP adapter boards. Power can be readily applied using the nearby V+,

V–, and GND rails.

2.6 Jumper Table

There are four jumpers located on the INA149EVM. Their functions are summarized in Table 1.

Table 1. Jumpers

Jumper Function

JMP1 This jumper shorts the V– power rail to ground. It allows a single supply to be used instead of a dual supply.

JMP2 This jumper allows the REFA pin on the INA149 to be connected to ground or the external reference op amp. The shunt on the jumper

can be removed as well to allow an external reference to be attached to the REFA test point.

JMP3 This jumper allows the REFB pin on the INA149 to be connected to ground or the external reference op amp. The shunt on the jumper

can be removed as well to allow an external reference to be attached to the REFB test point.

JMP4 This jumper shorts the REFA and REFB pins together. When shorting this jumper, make sure JMP2 and JMP3 are not in conflicting

positions.

INA149EVM SBOU119– November 2011

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