Gain bandwidth and power consumption are interdependent - for example charging and discharging the dominant pole capacitor requires power proportional to the frequency
741 with +/-15V supplies- 51mW typical. MCP6441 with +5V supply 2.25uW typical
You could typically run 23,000+ of the MCP6441 from the same amount of power as a single 741. That's a miracle.
RRIO.
Best regards, Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
Yup, we realize the old 741 is a model T, which is why I am not using such a device like that with what I have in mind. I will say that MChip does have a few interesting chips, I've always looked at them as uC (MPU) type people.
I think they bought the linear stuff from someone else- Telcom, IIRC.
Best regards, Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
on the Device Models & Subcircuits Page of my website.
If you work you way line-by-line thru the Spice model you can easily see the interaction between GBW, slew-rate, and current requirements. ...Jim Thompson
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| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
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