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Electrical Engineering

Questions tagged [precision]

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Use this tag to indicate that the topic is related to achieving the highest precision for a circuit. Examples include using 1% resistors instead of 5% or 10%. This tag also can be used in relation to measuring precision in a finished circuit.

151 questions
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10 votes
3 answers
1k views

I need to sense a voltage which is higher than common ADC measurement ranges, so I want to use a voltage divider to bring it down to a sensing level. The tolerance of my resistors will affect the ...
TJM's user avatar
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1 vote
0 answers
105 views

I am converting a single ended signal to differential to be read by an ADC. I am using this TI buffer&inverter implementation. Does it not introduce additional voltage in the actual signal because ...
Nirmala's user avatar
  • 129
0 votes
0 answers
106 views

I am currently playing around with a circuit to set the reverse bias voltage of an SiPM. Previously I used a setup like this. Note that the circuit shown is split onto two PCBs connected by some ...
forefoin's user avatar
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1 vote
1 answer
184 views

I'm trying to build a 2A current source with low noise and lowest drift possible. This circuit will be powered from batteries and the load will be some chemical solution with total resistance of ...
Tolik4's user avatar
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0 votes
0 answers
71 views

Consider a use case for measuring a precision voltage source output's noise and stability levels. Bandwidth is a factor in absolute noise, clearly. As such, measuring with wider bandwidth, is expected ...
midnightBlue's user avatar
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1 vote
2 answers
200 views

For a video "sync combining" circuit, one might want to generate pulses of (horizontal period - HSync width) fairly precisely. If the pulse is too long, horizontal sync might be lost during ...
NickJH's user avatar
  • 111
4 votes
2 answers
387 views

I am making a precision voltage reference now (-10V-10V 0.02ppm) and encountoured a problem of how to ground the system. Some articles (including the article I referred to " Sailer, T. (2015). ...
tojo li's user avatar
  • 41
9 votes
5 answers
1k views

I'm designing an extremely high precision current source. I'd like it's long term drift to be no higher than 1 ppm. This circuit consists of a high stability voltage reference (e.g., LM399), a 20-bit ...
Raymond Coulson's user avatar
  • 201
0 votes
1 answer
108 views

I am wondering if anyone can help gauge how well I can measure some small capacitance (1.5 pF with ~.05 pF steps/resolution) with a SR830 lock-in amplifier versus a dedicated LCR meter such as the ...
DoveBird's user avatar
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4 votes
7 answers
2k views

I've been looking into various electronic components and noticed rampant 5%, 10%, and even 20% tolerances and accuracies not only in basic components such as capacitors, inductors, and resistors, but ...
beardeadclown's user avatar
  • 267
1 vote
1 answer
95 views

From my limited understanding, audio ADCs, and even decoders, also have 16-24 bit resolution and not-so-low sample rates in comparison to high-resolution, low-noise ADCs. It's also worth noting that ...
pigeon CNC's user avatar
  • 19
0 votes
2 answers
142 views

When I synchronize two computers' system clocks up to 0.5 ms precision using NTP protocol implementation, it reports several tens of milliseconds skew in less than 10 minutes, and up to 3000 ms skew ...
ivan866's user avatar
  • 101
1 vote
1 answer
319 views

I'm working on a wind turbine project which needs to be able to rectify 3 phase AC with varying voltages. The lowest the input voltage will likely be is 2V, while the higher end will be 27V. I've been ...
soconnoriv's user avatar
  • 343
2 votes
2 answers
373 views

I'm using a 16-bit 8-channel DAC (DAC8568), driven by STM32 MCU. I need to obtain the 0-5V and 0-10V switchable output range, so to achieve that the voltage must be amplified with op-amp. This raises ...
coldmind's user avatar
  • 83
0 votes
3 answers
258 views

LM317HV data sheet provides following reference circuit for use as a "simple, fixed-current regulator" in section 9.2.9. It also specifies typical load regulation of 0.1%. I don't think the ...
beardeadclown's user avatar
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