Activity for newbie
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #294430 | Initial revision | — | about 1 year ago |
| Question | — |
IoT based gas sensing I am designing a gas sensor system for an IoT application. My system contains different gas sensors(at present 8 nos).The sensor data swill be connected to a potentiostat IC and this IC will be connected to TI CC1352P(Transmitter) and the data from this TI CC1352P will be send to another TI CC135... (more) |
— | about 1 year ago |
| Edit | Post #294416 | Initial revision | — | about 1 year ago |
| Question | — |
Why Zero ohm resistor in series with the XTAL oscillator The below image is taken from this refrence design. Imagealttext May I know why the two zero ohm resistors are used. (more) |
— | about 1 year ago |
| Comment | Post #294398 |
I believe there are some issues with this website,the zoom is not working.In Stack exchange if you click on the schematic you can see it as enlarged.The same option is not available in this site.If you can add such facility.It is well and good (more) |
— | about 1 year ago |
| Edit | Post #294398 | Initial revision | — | about 1 year ago |
| Question | — |
ADC Schematic review I designing an electrochemical sensor readout using Ad5941.The LDO used for powering the ADC is ADM7155. In the reference design all the capacitors and resistors used are 0603 package.In my design I used all 0805 package.That will make my rework easy.We don't have dedicated lab person. My f... (more) |
— | about 1 year ago |
| Edit | Post #294384 |
Post edited: |
— | about 1 year ago |
| Edit | Post #294384 | Initial revision | — | about 1 year ago |
| Question | — |
Adjusting the pulse width of a signal coming at comparator output This is a coninuation of a question I previously asked here. We made the proto board and it is working in low speeds.The complete circuit is given below. Imagealttext Let me show the wave-forms at each section of this circuit. TRANSMITTER: Imagealttext TIA Imagealttext Com... (more) |
— | about 1 year ago |
| Edit | Post #294355 | Initial revision | — | about 1 year ago |
| Question | — |
Using TLV75533PDBVR for powering ADC I will be using this ADC in my design. It has two power rails AVDD and DVDD. I am planning to use Two TLV75533PDBVR will be used one for AVDD and other for DVDD. May I know this LDO is good choice for this ADC ? In the reference design they used ADM7155 which is very costly.So decided to... (more) |
— | about 1 year ago |
| Comment | Post #294345 |
Ver good explanation.The author is a good teacher (more) |
— | about 1 year ago |
| Comment | Post #294339 |
Eagrly waiting for the expanded version and references. (more) |
— | about 1 year ago |
| Comment | Post #294345 |
I will be using separate LDO's(same P/N) for AVDD and DVDD.I won't be using the Analog devices part I shown in the simulation.It is very very costly.
I will be going with TLV75533PDBVR.
(https://www.ti.com/lit/ds/symlink/tlv755p.pdf?ts=1752684547550&ref_url=https%253A%252F%252Fwww.ti.com%252Fpr... (more) |
— | about 1 year ago |
| Edit | Post #294336 | Initial revision | — | about 1 year ago |
| Question | — |
Ferrite Bead in ADC Power supply I am using AD5941 in my design. The power section of its analog domain (AVDD) is given below. It is obtained from the reference design. You can see the schematics, BOM etc in bottom of this page. Imagealttext The LDO used is ADM7155. From LDO the output is connected to a ferrite bead (MPZ16... (more) |
— | about 1 year ago |
| Comment | Post #294286 |
In the reference design IOVDD is shorted to DVDD(3.3V) (more) |
— | about 1 year ago |
| Comment | Post #294304 |
Very good explanation. (more) |
— | about 1 year ago |
| Comment | Post #294304 |
Thank you .I will use separate power supplies for AVDD and DVDD.At the input of LDO's will use the filter suggested by you.
But if you are using this LC filter infront an LDO which powers both AVDD and DVDD,will this helps.Because the switching noise at DVDD will impact the AVDD.Please correct... (more) |
— | about 1 year ago |
| Edit | Post #294286 |
Post edited: |
— | about 1 year ago |
| Edit | Post #294286 |
Post edited: |
— | about 1 year ago |
| Edit | Post #294286 | Initial revision | — | about 1 year ago |
| Question | — |
Electrochemical Front End do we need dual voltage rails and split ground I am using AD5941 for my measurements from different sensors.I will be making a breakout board such that in my board I will be providing pads for connecting the sensors and the output of AD5941 will be connected to STM32 board. Imagealttext The power requirements of AD5941 is given below. ... (more) |
— | about 1 year ago |
| Edit | Post #294258 | Initial revision | — | about 1 year ago |
| Question | — |
Do we need to take any special care when doing the pcb layout for hall effect sensors I am making a breakout board which contains 4 hall effect sensors from paragraf.The sensor P/N is EGHSX03Q02 .My schematic is given below .Like this 4 sensors placed in the pcb. These sensors are used for mapping field of a pouch cell.The output of these sensors will be connected to Paragraf M... (more) |
— | about 1 year ago |
| Edit | Post #294173 | Initial revision | — | about 1 year ago |
| Question | — |
IrDA Receiver using discretes I am designing discrete IrDA receiver using a TIA and a comparator. My initial circuit is given below. I won't be using a BPF after the TIA as given in the MAX3120 Functional block diagram. The output of comparator will be connected to the Microcontroller. For TIA the opamp used is OPA859-Q and t... (more) |
— | about 1 year ago |
| Comment | Post #294155 |
Is this circuit safe? The input voltage (up to 90V) is directly connected to the supply rails of the op-amp. Could this cause damage to the op-amp during power-up (more) |
— | over 1 year ago |
| Edit | Post #294152 | Initial revision | — | over 1 year ago |
| Question | — |
High side current sense The below image is taken from Analog Devices design note DN1045. high side current sensor made with LTC2063 op-amp what is the use of M1 and M2? What is the use of REF and D1? (more) |
— | over 1 year ago |
| Comment | Post #294054 |
I received my answer and it is perfectly understandable. (more) |
— | over 1 year ago |
| Comment | Post #294054 |
What is the significance of Vol (1.05V) here.Does that mean if I am setting the gain I need to in such a way that output should fall in the range of 1.05V to 2.4V (more) |
— | over 1 year ago |
| Edit | Post #294053 | Initial revision | — | over 1 year ago |
| Question | — |
Output swing of OPA859-Q1 when Operating from Single 3.3V Supply I am using OPA859-Q1 in one of my applications. It's supply voltage is 3.3V,single supply operation.I am confused about is output swing when operated from 3.3V supply Is the maximum swing is 2.4V when operated from 3.3V Supply.Below table is from datasheet '6.5 Electrical Characteristics' (more) |
— | over 1 year ago |
| Comment | Post #294040 |
I changed M to Meg I am getting a bandwidth of 1M. (more) |
— | over 1 year ago |
| Comment | Post #294040 |
Thank you after changing M to Meg I am also getting a BW of 1Mhz.I removed they femto farad feedback capacitor and run the simulation again still getting 1Mhz with some peaking.I believe some issue with the spice model. (more) |
— | over 1 year ago |
| Comment | Post #294027 |
I value your time .Sorry for my mistake I will take care next time. (more) |
— | over 1 year ago |
| Comment | Post #294027 |
I did not get you. (more) |
— | over 1 year ago |
| Comment | Post #294027 |
I replaced the schematic with new one with improved readability.If you don't mind could you please check again (more) |
— | over 1 year ago |
| Edit | Post #294026 |
Post edited: |
— | over 1 year ago |
| Edit | Post #294026 | Initial revision | — | over 1 year ago |
| Question | — |
TIA Frequency Response I am designing a TAI using this tool from Analog devices. The circuit diagram and it's frequency response obtained from the design tool is given below. Circuit Diagram: circuit diagram Frequency Response frequency response plot I simulated the same circuit in LTspice the only chang... (more) |
— | over 1 year ago |
| Comment | Post #293898 |
https://www.embedded.com/ul-coin-cell-requirements/
May I know Any relation with this (more) |
— | over 1 year ago |
| Edit | Post #293898 |
Post edited: |
— | over 1 year ago |
| Edit | Post #293898 |
Post edited: |
— | over 1 year ago |
| Edit | Post #293910 | Initial revision | — | over 1 year ago |
| Question | — |
Potentiostat Clarification needed The below circuit is take from here. May I know how this circuit maintains the Potential at Reference Electrode and Working Electrode same. Imagealttext Here you can see that the working electrode is connected to IC1 and Refrence electrode to IC2.They are not in a common loop.Then how th... (more) |
— | over 1 year ago |
| Edit | Post #293898 | Initial revision | — | over 1 year ago |
| Question | — |
Battery circuit The below schematic is taken from this TI reference design. May I know is there any reason for using 2 MOSFETs here. Imagealttext Hi this link contains the application of the product.This is a Wireless PIR Motion Detector.Here is the design guide.[](https://www.ti.com/tool/TIDA-01398) (more) |
— | over 1 year ago |
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