Hi,
I'm trying to build a simple current sensing circuit to monitor the power consumption of WSN mote. The device itself should be very low power to enable even live monitoring. The current draw of device under test is in a range <1uA-20mA. I would be happy to achieve resolution of 1uA
I picked INA138 as current sense amplifier and need an ADC converter with a following specs:
single channel, 16-bit, 100kHz, Vsup=2.5-5V and the lowest possible current consumption. In fact everything should take a super-low current. My first choice was ADS1866, but then I realized that it needs a complex external Vref circuitry.
Any advice, please?
Jan. eht