INA219 High Side DC Current Sensor Breakout

$40.5 $57.51
This break­out board may well be the last cur­rent sens­ing solu­tion you every need to buy. Not only can it do the work of two mul­ti­me­ters, but it can do it with amaz­ing pre­ci­sion and flex­i­bil­i­ty. With it you can mea­sure high or low side DC cur­rent, the bus volt­age, and have it auto­mat­i­cal­ly cal­cu­late the pow­er. It can do so over impres­sive volt­age, cur­rent, and tem­per­a­ture ranges with bet­ter than 1% accu­ra­cy, all while deliv­er­ing the data in an easy to use for­mat over I2C.Works great with any micro­con­troller that is Cir­cuit­Python or Arduino com­pat­i­ble as well as sin­gle board com­put­ers such as the Rasp­ber­ry Pi. It is com­pat­i­ble with 3V or 5V log­ic and can mea­sure bus volt­ages up to 36VDC. Not for use with AC volt­ages.Most cur­rent-mea­sur­ing devices oper­ate with some notable con­straints that lim­it what they can be used for. Many are low-side only which can cause issues as the ground ref­er­ence changes with cur­rent. Oth­ers like its lit­tle sis­ter the INA219B avoid this by mea­sur­ing on the high side but need to change their shunt resis­tor to mea­sure dif­fer­ent cur­rent ranges. The INA260 avoids these lim­i­ta­tions, and with it’s inte­grat­ed pre­ci­sion shunt resis­tor it can be used to mea­sure as much as  26V at up to 3.5A Con­tin­u­ous on either the high or low side. Wow!The volt­age across the inte­grat­ed 2 mil­liohm (.002 ohms!), 0.1% shunt resis­tor is mea­sured by the inter­nal 16 bit ADC, allow­ing for mea­sure­ments over the impres­sive cur­rent range with a res­o­lu­tion of 1.5 mA. (The resis­tance of the resis­tor is so low that some mul­ti­me­ters will reg­is­ter it as a short!)In a high side con­fig­u­ra­tion the bus volt­age mea­sure­ment and pow­er cal­cu­la­tion can be retrieved accu­rate­ly, how­ev­er advanced hack­ers want­i­ng to mea­sure bus volt­age in a low side con­fig­u­ra­tion will need to cut the jumper con­nect­ing V  to VBUS and con­nect the VBUS pin to the volt­age bus.Comes as a ful­ly assem­bled break­out board with a 5.08mm ter­mi­nal block (extra chunky!) and head­er. Some light sol­der­ing is required to attach the head­er and ter­mi­nal block.Technical Details0.1 ohm 1% 2W cur­rent sense resis­torUp to 60V tar­get volt­ageEagleCAD PCB files in GitHubUses the INA169 chip, see datasheet for detailed spec­i­fi­ca­tionsFritz­ing object in the Adafruit Fritz­ing library
Voltage/Current

Voltage/Current