I am trying to use this IMU from sparkfun, but when I connected it to a power source it got extremely hot (I noticed it because of the smell, I'm pretty sure it's fried), and I'm trying to troubleshoot why this happened. I've checked that the circuit is wired correctly (I only wired the Vcc, ground and three other pins), so I think i might have broken it while soldering. At first I tried to solder the pins with a soldering iron that was not appropriate for electronics work (too hot and had the tip very oxidized) and let it make contact with the joints for quite a long time, so I think might have burned it then. My question is, would this behavior be explained by that? I don't want to buy another chip before first being sure of what happened to this one.
Here's what the breakout board with a header soldered to it looks like (I wired the VDD pin to the 3.3V pin in an arduino 101, the GND pin to the arduino ground pin, the SCL and SDA pins to the arduino's I2C pins, and the INT pin to the arduino's 12 pin):