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AD5142A as T-attenuator or voltage divider
Hello, I just designed a moduled AGC-circuit. Amongst other things there is a fixed gain module and an adjustable attenuation moduel (AD5142A). I got problems with the attenaution module. It's just a...
View ArticleADN8834 OUT2 oscillation at cooling mode only
Hello Our customer will use ADN8834 and evaluating ADN8834CB-EVALZ.At initial setting with his laser module including TEC and thermistor, OUT2 is oscillated.So he aligned the C and R around OUT2.As...
View ArticleCan ADN4604 be driven by LVDS Driver
Hi , Can ADN4604 be driven by LVDS driver. LMH0384 have equalizer inside and has 100 ohm differential output but this differential output is LVDS standard output. Thanks
View ArticleI2C communication drop periodically
I am using ADUM1250 for voltage level shifter for my I2C communication between PLC(3.3v) and ADS (5v)IC. I2C communication is dropped periodically. once it stop communication i have to reset the I2C...
View ArticleQuestions about the operation of HMC721LP3E
Hello, My customer asks some questions about HMC721LP3E operation.They say that they want to know whether the input swing level (VIH / VIL) of HMC721LP3E affects the output swing level (VOH / VOL) or...
View ArticleQuestion for AD7740
Hi , I have a questioin about AD7740 (V-F converter) .I use AD7740 with EX clock(1% accuracy).I want to drive AD7740 with 1000kHz clock .but , max CLKIN of AD7740 is 1000kHz .Can I use AD7740 with...
View ArticleI am having trouble calibrating the AD5522 in FI mode.
It says in the data sheet to compute M and C but I do not understand how to compute them. Is there anyone who has some C code to perform these computations ? Or perhaps has an application note...
View ArticleADN8834 evaluation board supply current
Hello Our customer will evaluate ADN8834CB-EVALZ.He set the resistor value for setting of maximum TEC current 700mA ,but the measurement result is not expected measurement reuslt.We concern if we use...
View ArticleADN8831 evaluation board not stabilizing
Dear Analog devices We are trying to evaluate the adn8831 chip for use in a fiber to the home product, and have therefor purchased the evaluation board.The peltier element that we are using has an...
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ADN8831 evaluation board not stabilizing
Dear Analog devices We are trying to evaluate the adn8831 chip for use in a fiber to the home product, and have therefor purchased the evaluation board.The peltier element that we are using has an...
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Using SPI control on zedboard PMOD connectors
Hi,I want to use a zedboard to control a SPI connection on PMOD. The project I'm working on already use the SPI_0 to control a device but not on PMOD. So I want to use the other connection available...
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Request HMC745LC3 IBIS model
Hello, My customer wants to use HMC745LC3 at Memory tester and they request IBIS mode of this device for SI simulation.Would you provide a IBIS model of HMC745LC3 device? Please release to me ASAP. If...
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ADN4604 as HDMI Switcher
Figure 51 on page 32 of the Rev A datasheet for the ADN4604 shows a 16 input/16 output HDMI crosspoint switch. However, I don't see how it is possible to configure the ADN4604 so that it will accept...
View ArticleDoes the EVAL-HMC792ALP4 come with the Digital Attenuator already attached?
Does the EVAL-HMC792ALP4 come with the Digital Attenuator already attached or do I have to solder it on myself?
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AD5522 PMU usb communication problem
I tried to use the measurement chip AD5522 to output a constant 4V voltage。 And I setup all the needed data to the specific regs（as data x1_reg=CCCC, gain m_reg=FFFF, offset c_reg=8000） But none right...
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Question about a DIgital PID control of ADN8833
Hello, My customer is designing to use ADN8833 in their Optic module.And they are asking some questions and your advices for implementing a DIgital PID control of ADN8833.Please refer below questions...
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ADM2587E absolute max rating
Hi One of my customer wants to know why the Vin absolute max ratings is limited as -9V and 14V.They guess the limit would be +/- 9V or +/- 14V. Regards,Power-man
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AD5522 PMU usb communication problem
I tried to use the measurement chip AD5522 to output a constant 4V voltage。 And I setup all the needed data to the specific regs（as data x1_reg=CCCC, gain m_reg=FFFF, offset c_reg=8000） But none right...
View ArticleADPD103
Sir, I am currently using the Eval board from Analog Devices - ADPD103. I am having some difficulties as the schematics of it are not provided!(Kindly post the needful) 1. I have issues when I am...
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About ADN8834 boost output current
I need drive a TEC device (inside of a LASER module) with almost 2 Amps.I need to know if my analysis about the OUTPUT STAGES of the ADN8834 device are correct.I don't see any possibility (by external...
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