AnsweredAssumed Answered

voltage input range of Kinetis M ADC

Question asked by svenmoeller on May 22, 2014
Latest reply on May 23, 2014 by EARL GOODRICH

Hello,

 

i want to use a Halleffect sensor(Pololu ±30A ACS714 Current Sensor - RobotShop) in combination with the TWR-KM34(Kinetis M3). According to the Ddatasheet the differential inputs accept a voltage range of 1V (+-500mV).

But the sensor exclusively has positive output: centered at 2,5V +-400mV

Does the firmware of TWR-KM34 properly work if my input signal is 0 to +500mV(so i could simply use a voltage divider)?

Or is it possible to change the input rane of hte ADCs from +-500mV to 2V+-500mV?

 

thank you

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