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Raymond Zhang1
2 months ago
Amplifiers
Amplifiers forum
RE: OPA378: circuits and amplifier as a reference buffer
Hi Frank, According to your diagram, the mux switching circuit will only need approx. 4mA to operate.
REF3125
should have enough current to drive this application (should source/sink at least +/-10mA output current as the datasheet indicated.). As...
Alexander Jamshedi
7 months ago
Data converters
Data converters forum
DAC7551-Q1: Not seeing expected Vout
Resolved
will eventually need to provide a buffered reference (
REF3125
), but I am hoping using the Teensy 4.1 in the mean
Abhinav.Sharma
over 1 year ago
Power management
Power management forum
RE: REF3125: REF3125AQDBZRQ1 & REF3112AQDBZRQ1 fit
Shinu, I have taken this offline with you to provide your requested information. Closing this thread. Thanks, Abhinav.
Bryan Lizon86
5 months ago
Data converters
Data converters forum
RE: ADS1258: How to use PGA281 with ADS1258?
Hi Poh, Thanks for providing these additional details. Given your configuration, the PGA281 should work in your system. Please note that the input range of the PGA281 extends beyond the input range of the ADS1258 MUX. Therefore, as long as you are...
santosh birari
over 1 year ago
Data converters
Data converters forum
RE: ADS1274: Unable to achieve number of Samples per second
Hello Keith, we took care about adc input in hardware which in the of 0v to +1v 1st ADC has Volt ref. from
ref3125
which is adjust to 1.1 volt and 2nd ADC has Volt ref through adc buffer AD825 as we are not able to improve waveform like square wave...
Marcoo Z
10 months ago
Power management
Power management forum
RE: REF3025: Reverse current on output for REF30XX
Hi BR, I can help you with this request. What are the sizes on R1 and R2? The REF3025 cannot sink current and maintain proper regulation. I would recommended a
REF3125
or REF3325 which are P2P which can sink current.
Marcoo Z
over 1 year ago
Power management
Power management forum
RE: LM4120: LM4120 Notation
Hi Arin, The LM4120 is a "I" grade device. This means that it is "I" for industrial and thus a ambient temperature of -40C to 85C as shown in the RoC. The Tj, Juction temperature, can be higher up to 125C but we do not recommend...
Bonnie Baker - WEBENCH Design Center
over 6 years ago
Amplifiers
Amplifiers forum
RE: Quad OPA4209 heat problem
I understand your dilemma. I am hoping that the
REF3125
solves your problem. It seems to be a better reference as well.
Joseph Wu
over 5 years ago
Data converters
Data converters forum
RE: ADS1258 - Questions about Reference Circuit in Datasheet
Ming, It took me some time to go through the circuit. There have been a lot of questions today and I wanted to make sure that I understood what each part was doing. First let's start with the reference. With the
REF3125
the inputs are set...
Shridhar%20More
over 5 years ago
Data converters
Data converters forum
RE: ADS7959's reference input
Hello Pinar, The reference input to ADS7959 is not internally buffered. The external circuit will be presented a switched cap load. The worst case switch cap load is expected to be 8.2pF. If you plan to use resistive divider to generate 2.5V...
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