Powering Analog circuit through SMPS.
SMPS output has ripple and switching noise at its output. Such a supply could hamper performance of high resolution slow speed analog circuit.How to reduce it? A low noise linear regulator would do? An...
View ArticleWhy does ADUM6401 power output latch low with power interrupt?
I'm using an ADUM6401CRWZ in conjunction with an ADUM1201WTRZ for isolation to an AD7714YRU A/D circuit. From a cold start everything comes up no problem but if the main DC power is cycled off/on, 9...
View ArticleLDO regulators in series to provide +/- filtered power rails?
Are there any issues using a pair of LDO positive regulators effectively in series to provide a claen low voltage +/- power supply for an analog section of a circuit that is fed from a +/- switch mode...
View ArticleADN8831 for 16V/24A TEC?
Hi, I am looking for an TEC controller wich can drives 16V and 24A. I found ADN8831 and now I am asking myself, can I use this driver? Perhaps somebody can give me an advice. Best regards,Jürgen
View ArticleUsing ADN-8831 TEC driver with a 0.8V/1.8A TEC
Hello, I am very interested in using this IC to control an APD TEC that has maximum TEC ratings of 0.8V/1.8A. Looking at the specs of ADN-8831, I am guessing it can be used and I am thinking of...
View ArticleADN 8831 TEC evaluation board
Hi Does somebody know the maximum output current possible on the evaluation board ? Is it +/-4 A or simply absolute 4 A. Thanks a lot for the help. Vincent
View Article3W Emergency Light
Hi, May i know what types of ADI IC which can be used to act as a power monitoring IC. The details as below:AC input cut off, battery will trigger the LED to turn on.When AC available, the power...
View ArticlePowering Analog circuit through SMPS.
SMPS output has ripple and switching noise at its output. Such a supply could hamper performance of high resolution slow speed analog circuit.How to reduce it? A low noise linear regulator would do? An...
View ArticleDefault on power switch
I want to design an easy power switch that is on by default, but I need the ability to turn the power off.Is this posible with a few mosfet's? thanks for any help
View ArticleRestarting SE for ADM1069
I'm having trouble getting the Sequence Engine for the ADM1069 to restart once I've programmed the SE and configuration register EEPROM.Essentially the goal is to run a script that can take an...
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Data sheet schematic ILIM ADP1048 error?
Looking at the data-sheet for the ILIM function pulse by pulse OCP the schematic on the right specifically. How can a voltage develop over the sense resistor in the Fet source lead when it is bypassed...
View ArticleEfficiency of ADP1607 at 32 uA
Hello, My name is Meir and I am a DFAE in ADI team at Phoenix Technologies Israel. Meprolight, one of our customers, is interested in ADP1607 for battery powered application. Their Input voltage range...
View ArticleA small outline power connector?
Hello everybody!Hope someone may help with such a problem: I am looking for a power connector, to connect my 12v battery operating device to the charger. Barrel connectors are way way too big - the...
View ArticleADP5585
Hello, everyone. I would like to confirm how to use ADP5585.Can ADP5585 use key matrix function and GPIO function and PWM control function at the same moment? GPIO function is for LED backlight...
View Articleadp5587 keypad interfacing
Hi all,I am currently working on interfacing between analog devices adp5587 and samsung arm9 processor s3c2450. The drivers for the keypad have already been developed but I dont know how to open...
View ArticleWhat are the advantages of current source vs current sink drive for Flash LED...
What are the advantages of current source vs current sink drive for Flash LED applications?
View ArticleWhat are the system benefits of programmable DC current limits when driving...
What are the system benefits of programmable DC current limits when driving LED flash?
View ArticleADP1706 Ripple problem
I am a newbie power supply designer.I have 44 mV of ripple (from my switching regulator) going into my linear regulator at f=1MHz. I have Cin=Cout=4.7uF. The linear regulator is not reducing the...
View ArticleADR444 reference design for noise reduction?
We need reference voltage of 4,096V with the lowest noise. We try ADR444 + output filter+pA low noise buffer amplifier. Beforewe start countingandbeating adeadpath,you do not haveaappnoteor...
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ADP3605
We're using the ADP3605 on one of our evaluations boards and we need to get a voltage of -5V. Seeing as our input voltage can go below 5V we're using the circuit shown in Figure 17 of the datasheet to...
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