Tagged Questions
0
votes
0answers
26 views
over temperature and current limiting question about a power switch: BTS5235
I am designing a cuircuit with BTS5235-a smart power switch from infineon.this is the datasheet of BTS5235
I get realy confused about its datasheet.
1.problem about VDS(Voltage at power transistor). ...
1
vote
1answer
71 views
Turning the PN junction of JFET on?
I am going to use a N channel JFET as a normally-ON switch. I am wondering if it would cause any problem in the long term reliability having the PN junction forward-biased. In other words, would it be ...
0
votes
1answer
52 views
Need faster analog mux. Use switches and summation amp?
I need to alternately sample 64 channels at 20Ms/s. That's 50ns per channel. I used to have a slower version at 2Ms/s and there i used 1 ADC and a series of analog muxes. This time around, at ten ...
1
vote
0answers
92 views
Lighting relay(?) with 220V leakage insensitive coil
Existing staircase lighting time-automat can not use 220V neon mini-bulb or LED lighted make-contact buttons. - These convenient buttons cause it t false-start (as if pressed) due to their ...
5
votes
2answers
965 views
Is analog SPDT IC switch same as mechanical relay?
I am working on a project which require to trigger a SPDT switch using a button to pass a small signal voltage across (~3.3V).
reference circuit image below
The requirement is:
signal must still ...
3
votes
5answers
1k views
Difference between Multiplexer/Demultiplexer and Analog Switch
What (if any) difference is there between mux/demux IC's and analog switch IC's?
I'm comparing this in the context of chips with the same IO lines (for example a 1:2 or 2:1 mux/demux vs. a SPDT ...
10
votes
2answers
178 views
Why do some of my IE converter circuits have a large offset voltage?
The following circuit is an active current to voltage converter with switchable gain.
Schematic
Not shown: The inverting input is held low through a 10K resistor when the circuit is powered on but ...
3
votes
1answer
197 views
How do i switch small AC signal on/off electrically
Suppose, i have an audio signal source.
I want to connect and disconnect it to amplifier electrically (for example controlled by another source, like microcontroller, sensor, 555, etc). I don't want ...
0
votes
3answers
240 views
Switch at output of operational amplifier
I'm currently designing an active filter which has to pass an analog signal between two cables (PLC). I'd however like to not let it pass in case the signal is already present (up to a certain ...
0
votes
2answers
425 views
Combining digital signal (0/24 VDC) with analog signal (0-10VDC)
I need some hints how to make an interface circuit that would combine two signals into one:
one is a Digital output is used to current sink (manufacturer wording) a load that is from 5V to 24V with ...
2
votes
2answers
158 views
Low voltage 2 channel stereo analog switch
I am looking for a ultra low voltage 2 ch stereo analog switch.
I have two headphone audio sources that I need to switch between.
It is very important that the chip can run of a 1.2v rechargeable cell ...
