Questions tagged [adc]
An ADC is an Analog to Digital Converter. This device converts analog signals into digital form. It is mainly used by digital circuitry to take analog measurements.
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Where do I hook up DSD outputs? PCM4222 ADC
I am a beginner to electronics and am currently trying to make my own DSD ADC for vinyl digitization. I am currently confused on where to lead the DSD output pins, DSDL, DSDR, and DSDCLK. Is there any ...
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Can I measure a small resistive voltage divider differential with a 16 bit ADC
Im designing a PCB for a high-precision industrial potentiometer designed for measuring rotation / angle in armatures. Specifically the 5K variant of the PL310. The ADC is the 16 bit MCP3425
I found a ...
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What should the resitance be between and electric fence's LIVE and Earth
I want to make a device that detects the pulse voltage and hopefully the "pulse diagnostics" from a Nemtek Electric Fence energiser. I came up with the high level circuit below and want to ...
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ADS1115 multi-channel sampling: all channels show spikes toward A0 voltage
I'm working on a small oscilloscope project using an ADS1115 ADC connected to a Raspberry Pi 5 via I²C (400kHz). I'm sampling three channels (A1, A2, A3) in single-shot mode at 860 SPS.
I've run into ...
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I am designing a signal chain around the AD7768 ADC and I would like to verify whether my supply, driver, and reference connections are correct
The AD7768 can be used with split analog supplies, and the datasheet says that in a ±2.5 V split-supply configuration the ADC inputs are truly bipolar. I plan to power the ADC with ±2.5 V and use an ...
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Connect LTC2387 to FPGA
I have never use ADC and FPGA before. I have trouble connecting LTC2387 to ZYNQ 7020. I have 4 pairs of LVDS signal from LTC2387, they should be connected to pin in HR Bank.
LVDS Data Clock Output: ...
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Current Monitoring using ACS 712
I am successful at monitoring the current into my single-board computer using following setup. I loaded up proper overlay required for the multiplexing GPIO & used ...
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Requirement for Kick‑Back Filter When Using High‑Speed Op‑Amp
In my circuit, I am using an OPA333 op amp to buffer a sensor signal after it goes through a two stage RC low pass filter (R13–C44 and R14–C45).
My simulation shows the overall filter bandwidth is ...
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Can I safely / effectively send substantial negative voltages to the analog pins of an INA226?
Serious noob here. I can READ a Datasheet, but I can’t quite interpret it (or at least not reliably…)
https://www.ti.com/lit/ds/symlink/ina226.pdf
In the INA226, I’m looking to measure current on a ...
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Best way to control a voltage divider using GPIO
I have designed a circuit to take two temperature measurements using NTC thermistors. My design includes a simple 10K/10K voltage divider.
To ensure no current flows in-between readings, I toggle ...
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Are there benefits to having multiple / selectable dividers to "widen" the range of voltages shown to an ADC?
I'm working on a project (or possibly just a thought experiment) where I want to do voltage sensing for an LFP battery system. Assume I want to be able to measure the voltage for the three voltage ...
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Is one I²S master with multiple slave receivers a valid way to synchronize three PCM1809 ADCs on STM32?
I am designing a system with three stereo ADCs (PCM1809) that cannot share a single serial data line (they cannot be daisy-chained).
The MCU is an STM32H7S3Z8T6. Its two SAI blocks are already ...
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Trying to connect ADC to FPGA
I'm trying to connect LTC2386-18 to Zynq 7020, referencing the evaluation board DC2588A.
The the ports (DA,DCO,CLK) are LVDS interfaces, logic level 2.5 V. The LVDS interfaces of my Zynq board are 3.3 ...
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Where/how do I need to ground the blocks in this circuit/application? Energy monitor with a battery and a shunt/ADC
Some references as to how I got here...
https://forum.arduino.cc/t/how-to-measure-pos-and-neg-voltages-across-shunt-resistor/96605
Why can't a "differential ADC" measure something ...
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Having trouble in ADC resolution
The output of my DUT (a probe) is a sine wave (1 Vpp, 500 kHz). The maximum distance of the probe is 100 μm, I need to measure at least 1 nm with ADC. The resolution should be log2(100000) ≈ 16.6 bits....
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