All Questions
88 questions
0
votes
1
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63
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Electronic Equivalent to a Rotary Switch
I have a peak detector circuit that relies on six different capacitances, depending on the use situation. The user can currently use a D2D0212N rotary switch to multiplex to manually switch to a ...
0
votes
1
answer
66
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Noise when toggling the SPDT switch in the phase inversion stage of my preamplifier
I’m designing an audio preamplifier with XLR microphone and instrument inputs. For the microphone, I use a DPDT switch for the pad attenuation, followed by an instrumentation op-amp for the balancing ...
2
votes
1
answer
137
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Why I am seeing peaking at NMOS switch output?
I am designing a simple switch using an NMOS. The NMOS P/N is PMV65UNE. The circuit is given below.
I am observing a peaking at the output of the MOSFET. Please see the below image.
Below is the ...
- 3,494
0
votes
0
answers
79
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Clock feedthrough of the bootstrapped switch
I'm learning about the bootstrapped switch through this paper. Razavi used a 20 µm / 28 nm NMOS (M1) as the main switch to achieve low Ron. I am wondering does this wide device cause any problem ...
- 725
0
votes
1
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61
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Switch Protection
I am using SPDT and multiplexer switches in my design and these switches are directly connected to Px connectors for various channels. Transducers (capacitive load below 500 Ω) are connected at Pin 2 ...
- 59
2
votes
5
answers
1k
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How to generate evenly-spaced config voltages from standard DIP switches using only passive resistors?
I am designing a circuit involving an LTC4316, which is configured by providing one of sixteen analog voltages on each of the XORH and XORL pins to set the upper and lower nibbles of its configuration ...
- 382
2
votes
0
answers
42
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Soft power-off compatible with two different hardware architectures
I've been tasked with designing a single PCB that will (amongst other) provide soft-power off feature to two different products with different hardware architectures.
The notable differences between ...
- 649
0
votes
1
answer
412
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Power supply switch PS-ON with bus signal
Update : Now I'm using a Smart Lowside Power Switch HITFET BSP 75N
Better and less confusing than the transistor switch.
I have a power supply (PSU) (not standard computer ATX PSU)
PSU EPP-300 is at ...
- 5
1
vote
2
answers
1k
views
Using a toggle switch as a momentary switch
On my boat I have a 12 V to 220 V voltage converter which is tucked away behind a cabinet. This converter uses a remote control to turn it on or off. Now this remote control is connected with an RJ10 ...
- 11
0
votes
1
answer
187
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Is there an IC equivalent of a 3PDT switch?
I have two 3 wire RTD temperature sensors being used to measure the temperature of two different liquids. I only have one digital gauge to read the output on. I would like to switch between the two ...
- 149
1
vote
2
answers
232
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Analog Switches
For a project I would need analog switches or multiplexers. I want to switch a Signal (3-10V, up to 10 kHz) onto different outputs. In the best case it should be possible to go up into the MHz range ...
- 11
1
vote
2
answers
345
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Analog switch unpowered state
The board I am designing is a test board for another battery powered PCBA. I am using a MAX4737EUD+ and a TMUX1101DBVR in my project to switch signals and power to the PCBA under test. They are also ...
- 11
3
votes
2
answers
718
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Square to triangle wave converter frequency range adjustment
I am working on a synth module that converts a square wave (generated digitally: High - 10v; Low - 0v; Duty cycle = 50%) to triangle wave output. I've found this schematic that works for an already ...
- 327
1
vote
2
answers
149
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Switching analog that allows resistance to also be switched for thermistors
I'm trying to switch four analog thermistors to one main thermistor reader I've tried to use a CD4066BE to switch them but then I've just found out that it doesn't work as they don't let through the ...
- 209
1
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2
answers
1k
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Momentary switch to activate 555 timer
I am very new to circuits and I've tried everything online but nothing seems to be working. I am making this circuit for a class.
I am trying to emulate this circuit diagram from this youtube video ...
- 11