Analog-to-Digital Converter (ADC) Chips Information Analog-to-digital converter chips (ADCs) transform information from analog to digital form. ADCs receive analog input, perform calculations on the analog signal, and then digitally encode the output in a format that computerized systems can process. Analog-to-digital converter chips are used in a variety of applications, including data-acquisition, communications, instrumentation, and signal processing. To cover a broad range of performance...
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Q & A on Analog-to-Digital Converter (ADC) Chips

We asked our users for their input on Analog-to-Digital Converter (ADC) Chips. Here are the results of 114 users familiar with Analog-to-Digital Converter (ADC) Chips.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice |

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing ADC chip design?
14 answers
Answers:
High speed FPGAs make it easier to design almost 100% digital ADC; the fast computers make it easier to design very complicated SDR designs using free software such as GNU Radio.
~Engineering, Consulting, Juan Les Pins, France
Not new technology so much as monitoring and control of older technology via ADC & DAC so chips can do what pots once did and relay the info to PC or logging device.
~James W, Design Engineer, Callaghan, Australia
Any technology that makes it faster, more economic, or decreases its size or consumption undoubtedly affects the ADC chips.
~Juan Jose Royes, Technical Support, Montevideo, Uruguay
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Q:
From your perspective, which companies are creating the most innovative ADC chips?
24 answers
Answers:
Maxim and Texas offer a lot of different dedicated ADC chips, but there are many interesting developments in these and other companies.
~Juan Jose Royes, Technical Support, Montevideo, Uruguay
MICROCHIP - MCP3304-CI/P - IC, 13BIT ADC, QUAD, PDIP16, 3304 was my last purchase as it ticked all the boxes.
~James W, Design Engineer, Callaghan, Australia
Analog Devices, Microchip, Texas Instruments, Freescale Semiconductor
~Engineering, Faculty/Staff/Student, Kollam, India
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Applications and UseTop

Q:
What are some of the applications you have used ADC chips for?
30 answers
Answers:
Temperature, presure, sound, displacement convesion, I have been teaching how to develop a project from design to implementation, digital circuits with PLC's and microprocesors for ITT for 5 years.
~Engineering, Other, Las Vegas, NV
Automotive ecus and others electronics modules Applied electronics ( home and indutrial appliances )
~Juan Jose Royes, Technical Support, Montevideo, Uruguay
Anything from low speed temperature control to high speed (+150MHz) Software Defined Radio design.
~Engineering, Consulting, Juan Les Pins, France
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Q:
Please share with us any “non-standard” applications that ADC chips have been used for.
8 answers
Answers:
One project I worked on was gas fumigation of diesel engines, but that success is proprietary. Now it is dragging what old and new monitoring systems are presented to me into a digital format to interface with a PC for monitoring and control, leading toward feedback intelligent control at device and system level.
~James W, Design Engineer, Callaghan, Australia
We used ADCs in weighing scale instruments and electricity counter projects.
~Mehmet riza Ö, Research & Development, Manisa, Turkey
Ground Probing Radar, Thru the wall radar applications
~Alessio C, Research & Development, Brescia, Italia
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Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of ADC chips?
6 answers
Answers:
Never rely on 1 reading, never react to 1 reading. Getting the right digital number is being in sync with the bits you are receiving. A slight time dilation or any other uncalculated inaccuracy means you can get bad numbers. Not because the wrong number was sent, just read badly. A 0 or 1 out of place by 1 bit can be a real disaster if you act on it. Many reads breeds confidence.
~James W, Design Engineer, Callaghan, Australia
Yes, the converted signals were nothing like what they were supposed to be like in amplitude or shape!
~Dennis H, Owner, Seth Jerad Communications, Ltd., Tampa, FL
* Incorrect data from the ADC *Wrong calibration and hence incorrect results of application
~Sanjiv kumar C, Systems engineer, Chennai, India

FeaturesTop

Q:
What would your design or feature "wish list" be for this product?
17 answers
Answers:
I like the philosophy of the Labjack embedded range, but unfortunately they all stop at 12 Bit ADC on analog input channels, just go to 13 and then with the ability to stack for that one occasion when higher resolution is required. A simple interface relatively turnkey with free software to talk to it and reprogram it at the core level to retask the CPU to suit your needs. I know it is more than an ADC, but you asked. At the moment my speed is limited to a good ADC and mix channel selector if you get my drift.
~James W, Design Engineer, Callaghan, Australia
I2c (more preferable) or SPI compatible Cheaper with more sample rate and resolution Ease of use in pcb design and emc tests Requires less additional components
~Mehmet riza Ö, Research & Development, Manisa, Turkey
A small programmable device inside the ADC to perform signal processing inside the chip.
~Engineering, Consulting, Juan Les Pins, France
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Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using ADC chips?
6 answers
Answers:
Choose ADC chips for that specific application : ex. * High speed ADC portfolio: high performance ADC's in resolutions of 10-bit, 12-bit, 14-bit and 16-bit sampling from 1Msps up to 250Msps * No Latency Delta Sigma ADC: nearly any precision measurement application
~Sanjiv kumar C, Systems engineer, Chennai, India
List your needs. IF you do not know them look at what is available and then look for alternative methods, it is amazing what you will find.
~James W, Design Engineer, Callaghan, Australia
Check ADC's available, not just those already known because generally the market has a more convenient one.
~Juan Jose Royes, Technical Support, Montevideo, Uruguay
Define your needs (resolution and speed) and choose your ADC. I just mean don't spend additional money.
~Mehmet riza Ö, Research & Development, Manisa, Turkey
Take care of noise and linearity parameters.
~Shrikant Kulkarni, Research & Development, Nashik, India
Internal noise will be a key factor.
~Project Manager, Zhuozhou, China

Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of ADC chips?
9 answers
Answers:
Whether the data conversion challenge is high-speed or precision, for mission-critical systems or consumer entertainment, engineers will find an ADC or DAC to suit every specification: accuracy, resolution, sample rate, bandwidth, power, size and value.
~Sanjiv kumar C, Systems engineer, Chennai, India
Careful in drawing the lines of earth return, especially in circuits with high currents or magnetic fields.
~Juan Jose Royes, Technical Support, Montevideo, Uruguay
Define your needs (resolution and speed) and choose your ADC. I just mean don't spend additional money.
~Mehmet riza Ö, Research & Development, Manisa, Turkey
Always select for a higher bit resolution than what you think you will need.
~James W, Design Engineer, Callaghan, Australia
Power consumption will be another important specification for ADC design.
~Project Manager, Zhuozhou, China
Spend time, Experiment with board layout, use good ground plane area.
~Johan S, Pensioner, Pretoria, South Africa
Ads12xx, ads3xxx from Texas instruments.
~Carlos M, Engineer, Bogota, Colombia
This is in functions of the applications.
~Ever Cifuentes, Research & Development, Lima, Peru
Check sampling rate and linearity.
~Shrikant Kulkarni, Research & Development, Nashik, India


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