Trip amplifier / Threshold detector at 70C
Trip amplifier / Threshold detector at 70C
(OP)
Hi
I am after a suitable sub-assembly to detect a 0-7V signal being below 0.5V. There are many available, but my problem is that the ambient temperature may exceed 70C, and any that I have found are only rated to 50 or 60C. I expect they use 70C internal components, and need the margin. Anyone know of any high temperature variants?
Suppliers I have found, which do not appear to cover this temperature include PR electronics, Brodersen, SIL, and Instrotek
I am after a suitable sub-assembly to detect a 0-7V signal being below 0.5V. There are many available, but my problem is that the ambient temperature may exceed 70C, and any that I have found are only rated to 50 or 60C. I expect they use 70C internal components, and need the margin. Anyone know of any high temperature variants?
Suppliers I have found, which do not appear to cover this temperature include PR electronics, Brodersen, SIL, and Instrotek





RE: Trip amplifier / Threshold detector at 70C
Problems are technical.
Solutions are political.
RE: Trip amplifier / Threshold detector at 70C
RE: Trip amplifier / Threshold detector at 70C
RE: Trip amplifier / Threshold detector at 70C
What is the supply voltage
Does it have to switch any signifigant output
Can it be open board or must have a case
Are any agency approvals required
Is this temperature always there or just sometimes
What do you expect the service life to be
I know of three products that would work and the company has a history of modifying in those quantities.
RE: Trip amplifier / Threshold detector at 70C
What is the supply voltage? 24V DC
Does it have to switch any signifigant output? No - 100mA typically
Can it be open board or must have a case? Open board preferred
Are any agency approvals required? Use by UK navy on ship
Is this temperature always there or just sometimes? Just sometimes.
What do you expect the service life to be? 20 years
Thanks