At the moment, our department has released a filter circuit board, one of the main components of which is the AD826.
www.analog.com/.../AD826.pdf
In our circuit, the power is from a 30V block, with a midpoint of 15V. Scheme in attachment.
Operats. the amplifier heats up significantly, somewhere 55-60 degrees. The current consumption amounted to ~ 25mA, which is extremely higher than the stated 7.5mA per channel.
It was also decided to check the AD826 outside the circuit - pulled all the entrances to the ground, 28V power supply. The current consumption is 28 mA.
PS: In the same scheme, the AD823 operational amplifier consumes current like AD826 not heat up at all.
Edit Notes
Attachment uploaded[edited by: timurtemirkhanov@mail.com at 8:21 PM (GMT 0) on 27 May 2019]
