[chillysalsa]

Just recieved news of this new opamp with some interesting specs:

LOW INPUT NOISE VOLTAGE: 1.8nV/Hz
HIGH GAIN BANDWIDTH PRODUCT: 290MHz
HIGH OUTPUT CURRENT: 350mA
LOW INPUT OFFSET VOLTAGE: ±0.2mV
SLEW RATE: 135 V/µs
FLEXIBLE SUPPLY RANGE:
Single +5V to +12V Operation
Dual ±2.5V to ±6V Operation
LOW SUPPLY CURRENT: 6.0mA/ch

OPA2614 datasheet.

High bandwidth and slew rate, while delivering 350 mA?
Could it be the ideal opamp for Grado-powering CMoys?

 

[Garbz]

350mA could be sufficient to act as a buffer for virtual grounds as well. I've got mine on order

 

[einolu]

how much will it cost?

~EO

 

[Sycraft]

That funny, using a DSL opamp for audio

I suppose if it can pass mhz signals with low noise, it ought to do well in the audible range.

 

[morsel]

The 12V power supply is a limitation for high impedance headphones, but it will be interesting to hear how it sounds.

 

[Earwax]

Has anyone actually tried this chip yet?

 

[Excalibur]

The price is comparatively cheap. Only $3.31 at digikey.

 

[bg4533]

It has been a bit over a month, has anyone given this a shot yet?

I have one sitting here, but I only have a CMOY at the moment that runs off 1 9V battery and I don't feel like rewiring it. Is it worth soldering onto a browndog and testing or is there no chance it will run at 9V?

I am hoping to find a chip for a Mint like the OPA2132 but with a bit more detail. I don't like the OPA2227 and AD8620. There aren't to many other choices for SOIC chips.

 

[AMZ-FX]

I did some quick and dirty noise calculations and it looks to be as quiet as a 5532 or OP275, but capable of more output drive. Should be a good chip for experimentation. It will be most quiet when driven by a low source impedance... as the driving impedance gets to be 4k - 5k or so, it will be noisier than the 5532 or OP275.

regards, Jack

 

[Earwax]

Quote:

Originally Posted by bg4533 It has been a bit over a month, has anyone given this a shot yet? I have one sitting here, but I only have a CMOY at the moment that runs off 1 9V battery and I don't feel like rewiring it. Is it worth soldering onto a browndog and testing or is there no chance it will run at 9V? I am hoping to find a chip for a Mint like the OPA2132 but with a bit more detail. I don't like the OPA2227 and AD8620. There aren't to many other choices for SOIC chips.

9V should not be a problem, given that it wants a maximum of 12 Volts. But, it's not stable in the usual cmoy circuit. It hasn't even been stable for me in any of the circuits I built while trying to get the 6171 to run.