INA190EVM

The INA190EVM from Texas Instruments is a fully populated evaluation module designed to evaluate the INA190 voltage-output, current shunt monitor. This small module contains 6 completely independent boards that can be broken off by the user. Five identical boards are rated for 20 A and can be used for the five device gain variants. A sixth board with a special guarding layout is rated for 10 A and is intended for low-current measurement systems.

Each board provides test points for VS, GND, OUT, and REF, along with headers to configure the ENABLE and REF pins. The ENABLE pin can be jumpered to GND or VS, and the REF pin can be jumpered to GND or a voltage supply set by an on-board buffer circuit. External sources can also drive these pins. The evaluation module operates from a single supply voltage range of 1.7 V to 5.5 V and features a single-ended output with a slew rate of 0.3 V/µs.

The INA190EVM includes 12 shunt connectors and 2 quick-fit connectors for measurement source connection. A layout for a buffer reference circuit is included, allowing customers to create a reference buffer with a preferred SOT-23-5 op amp. The breakable panels enable experimentation and testing with all gain variants of the INA190.