Basically this means that the opamp must be able to operate in that temperature range. Normally the hottest part of the circuit - usually, but not always, the internal junction of a transistor - must not exceed its maximum operating temp when running under load.8. Temperature range: 25 -- 100oC Just sum the temperatures from datasheet?[/I]
Sure? I fear the "Frequency response" specification is rather unclear. We would expect a GBW specification for an OP or a closed loop BW specification for an amplifier with fixed gain. It's not even clear if the amplifier is originally specified as OP-Amp, the term doesn't appear in the quoted specification.To 3) gain flatness from DC to 10MHz: -0dB ... +2dB
3. I think this should read +- 2dB at 10 MHZ. Else the frequency at which the increase in gain occurs should have been stated. This means that buffers will be required in between amplifier stages.
8. With an upper temperature range of 100 degs C and a maximum junction temp. of 150 degs C the dissippation of devices must be checked and changes in operating points, due to leakage current variation (use DC feedback?).
Frank
No, I´m not sure. This just was my assumption.Sure? I fear the "Frequency response" specification is rather unclear. We would expect a GBW specification for an OP or a closed loop BW specification for an amplifier with fixed gain. It's not even clear if the amplifier is originally specified as OP-Amp, the term doesn't appear in the quoted specification.
..means the open loop gain.9. The gain must be between 1000 - 1500
means the closed loop flatness.3. Frequency response DC - 10MHz + 2 db.
The purpose of gluing transistors together is to keep them at the same temperature (e.g. to minimize offset drift) whereas heatsinks are for cooling. Mounting them on the same heatsink will also help to reduce temperature differences but will also introduce a time lag in reaching thermal equilibrium.About the temperature, I've read somewhere to glue the transistors back-to-back. I was thinking of gluing tiny heatsinks.
Reduce input voltageMy question is to how to avoid clippings
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