Problem with i2c address space for INA219

Status
Not open for further replies.
M

MrCravon

Newbie level 5
Joined
Sep 3, 2014
Messages
9
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
83
Hi again,

I am currently using a INA219 IC to measure the power consumption in a system. My problem is that the INA219 only has 16 usable addresses and i need 24 or more. The system has 8 modules and each module needs the power measured in three different places.

1. Is there an alternative to INA219 with a bigger address space and similar functionality?

2. Is there a similar circuit that uses different i2c addresses and can be used on the same buss as the INA219 sensors?

Thanks!
 

MrCravon said:
My problem is that the INA219 only has 16 usable addresses and i need 24 or more. The system has 8 modules and each module needs the power measured in three different places.
Click to expand...

One possible commonly utilized option to alleviate I2C address conflicts or limitation is to incorporate an I2C/SMBbus multiplexer or bus switch. Several manufacturers offer such devices including TI, NXP, Linear, they can often be cascaded in order to provide a large number of independent I2C buses, typically available in 2, 4 or 8 channels and some devices also offer interrupt capabilities.


BigDog
 
Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…