Lithium Iron Phosphate batteries
I am using Lithium Iron Phosphate 3.7volt cell @ 4700mA.hour rating. I want to make batteries with output voltages of 24volts and 32volts. They will be recharged from photovoltaic panels only. 7...
View ArticleGFSK testing at 2.4GHz
Hello, I am looking for solution of GFSK testing in 2.4GHz.The product is based on ADF7242 Transceiver.What test equipment can you recommend? Thank you
View ArticleQuestions on pins MIX_I, MIX_Q, FILT_I and FILT_Q for ADF 7020
Dear Sir/Madam, My primary goal is to find the phase information of the received signal using a quadrature demodulation architecture receiver/transceiver. Therefore the signals I am most interested in...
View ArticleAD5273 Programmable Digital Potentiometer
We use the AD5273 for adjusting contrast on a LCD we use in our design. The LCD is changing and we no longer need the AD5273 to adjust contrast but we have to leave the AD5273 in the circuit because...
View ArticleADA4571 Evaluation Software doesn't be opened
Hi All, I am now trying to install the ADA4571 Evaluation Software into my PC, it doesn't work so far.I am trying to install it along with the installation procedure written in theUG-739.The software...
View ArticleADA4571 companion device for absolute angle
Hi All, The ADA4571 output sine and cosine voltage.My customer needs absolute angle data without need for calculation in MCU, because his MCU is busy.Do you have any recommendation for converting sine...
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AD5242 used as varying resistor with LM317 to get analog voltage
I am trying to get analog voltage with AD5242 and LM317. I get both the ICs working seperately but when I use the resistor value I created with AD5242 on the LM317, it doesn't work as expected. I...
View Article3 lead ECG
I am planning to build a wireless ECG sensor. This is my first attempt to do anything of this sort. I was wondering if i should go AC-coupled AFE or DC-coupled AFE? Which one would be easier?
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EDA TOOLS METHODOLOGY FOR LAB-ON-A-SMARTCARD
I am looking for experts in EDA Tools Mthodology for LAB-ON-A-SMARTCARDPlatform (Analog Mixed Signal):Here is the...
View ArticleADF7242 and frequency hopping in GFSK/FSK mode
Hello, I am looking at using the ADF7242 for a proprietary Frequency Hopping radio link.I would like to determine the blanking interval, i.e. how long it will take to hop between frequencies. Referring...
View Articleadf7021-N
what exactly are the output pins mix_i and mix_q and fil i and fil q for? image rejection how do i know the signal i'm getting is lower one or higher one with respect to reference signal
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ADA4571 companion device for absolute angle
Hi All, The ADA4571 output sine and cosine voltage.My customer needs absolute angle data without need for calculation in MCU, because his MCU is busy.Do you have any recommendation for converting sine...
View ArticleConfirm die markings to top markings
We have P/N AD641AP with Date Codes 0043, 0045, 0313, and 0320. The Die (wafer) marking found on all devices is AD640 ADI M 1988. The back side injector had PHILIPPINES with various numbers such as...
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AD5242 used as varying resistor with LM317 to get analog voltage
I am trying to get analog voltage with AD5242 and LM317. I get both the ICs working seperately but when I use the resistor value I created with AD5242 on the LM317, it doesn't work as expected. I...
View ArticleEMG Isolation in the case of a processor with an in-built ADC.
Hello Bill,I went through a discussion initiated by Yee http://ez.analog.com/thread/6389?tstart=0 in which you have discussed choosing an appropriate isolation scheme for an ECG system. I too have...
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ADF7012 RF output impedance
Dear, Can anyone kindly provide us RF output impedance of ADF7012 around 145MHz?We'd really appreciate if anyone has data on this as we're not equipped with load-pull measurements. Thank you in...
View ArticleLooking for a PCB layout sample for AD8497
I have looked all over the internet for a sample layout for ultiboard for the AD8497 Thermocouple. I am manufacturing the circuit for a class using the basic connection from the data sheet....
View ArticleProblem starting EVAL-AD9837SDZ software
Analog Engineers, I have two EVAL-AD9837SDZ boards that I would like to program on my computer, but I am having an issue getting the software to open. The program can't locate the LabVIEW Run-Time...
View ArticleAD620 as a voltage to current converter
We are trying to build avoltage to current output stage for a new product with the above device. Input -5v to +5v required output current -12.5mA to +12.5mA A colleague built a prototype unit based on...
View ArticleAD835 Help
Hello, I have replicated the frequency-doubling example circuit for the AD835 (see figure 24 in datasheet). It does not seem to work. I have attached screenshots of spectrums for both my 10MHz input...
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