Dear all, if would be of great help if someone here can help us to get out INA103KP running properly. Since weeks we can't understand what is wrong.
We're using INA 103 KP as instrumentation amplifier as driver for thermocouple circuitry. We wired it up as the datasheet suggests in Figure -1. That said, V+/V- = +12/-12 DC, Gain = 1, pin 14 is left open, then pin 2 and pin6, pin15 and pin13 are tied together, then pin10 and pin11 are tied together. Pin7 is connected to Ground. The input terminals pin1 is analog signal from thermopile and pin16 is negative signal from themopile. In this configuration as soon as power is supplied INA 103 outputs 12Volt on its pin 10. if we measure the thermopile signal before entering to INA103 its 100 mVolts. In this case with G=1, we should get 100mVolts at INA103's output. It looks like it just outputs 12Volts even if i remove the signal source.
hope someone can make a light in this darkness.
David