OPA1604: Alternative device to OPA1604

Danilo A.

Part Number: OPA1604
Other Parts Discussed in Thread: OPA1664, OPA1679

Hi Team,

Our customer is developing an audio project using guitar style inductive pickups. They need help selecting the correct op-amp for their active filters. Currently, they are using OPA1604 but it seems the specification is quite high for their application. They are looking for an affordable op-amp that will have great audio characteristics. Everything in the active filter is in the unity gain set up. They use approximately 74 quad op-amps per product so they also need it to be affordable.

Can you please suggest an alternative opamp with lower cost that would meet their requirements? Below is the schematic diagram of their circuit for reference.

Joseph Howe Sch.pdf

Regards,

Danilo

over 3 years ago

0 Chris Featherstone over 3 years ago

TI__Mastermind 21180 points

Danilo,

I will reach out to the team on an alternative product that would be a lower cost option. Is there anything in specific you can tell me regarding the specs that you mentioned are quite high? In other words, what specs are they interested in compromising on and with those specs what would their requirements be? Distortion, noise etc.

0 Chris Featherstone over 3 years ago

TI__Mastermind 21180 points

Danilo,

I reached out to our systems engineer and he was recommending to take a look at the OPA1679. If the customer doesn't have a preference for the CMOS input they could also look at the OPA1664,

0 Danilo A. over 3 years ago in reply to Chris Featherstone

TI__Mastermind 25945 points

Hi Chris,

Thank you very much for your suggestion.

Regards,

Danilo

Audio

Audio forum

OPA1604: Alternative device to OPA1604