I'm trying to use the AD AD828 op-amp as simple noninverting audio linestage amplifier with a gain of 5.
AD828 data sheet:
http://www.analog.com/static/imported-files/data_sheets/AD828.pdf
When I place a volume control in front of the 828 the DC offset measures a whopping 1.3V.
When I place the 828 in a noninverting circuit without a volume pot., such as a CD player or tuner, the offset only measures 200mV.
Why is the volume pot. causing the DC offset to be so much greater and how can I reduce it?
Thank you...
AD828 data sheet:
http://www.analog.com/static/imported-files/data_sheets/AD828.pdf
When I place a volume control in front of the 828 the DC offset measures a whopping 1.3V.
When I place the 828 in a noninverting circuit without a volume pot., such as a CD player or tuner, the offset only measures 200mV.
Why is the volume pot. causing the DC offset to be so much greater and how can I reduce it?
Thank you...