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OPA1642: Improve noise and DC offset performance

Part Number: OPA1642

OPA1642: Improve noise and DC offset performance

Hi Chris, 

Thank for your quick and detail and rich supplement information to our question, these feedback reinforce our choice of the SoundPlus OPA1642, being a DI (Dielectric Isolated process) JFET OP, can provide an outstanding performance for the Phono Pre-amp application. 

We would further the development of this, with adding monitoring function for the amplifier application, e.g. power (battery) and other valued addedness for users.

We may come back later in case require additional guidance for TI's component / solution. 

Have a nice weekend, and
Regards