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pga309
Related Posts

  • Forum Post: PGA309 with external EEPROM

    Oliver Yang
    I'm using PGA309 with external EEPROM to hold some parameters. I'm a little bit confused on what's in the PGA309 user's guide. At Figure 4-6, "Set EEPROM Address Pointer Timing", it shows the EEPROM address pointer is 11-bit. What if I have an 8-bit EEPROM like the example showing...
    on Jun 17, 2010

  • Forum Post: pga309evm-usb usage

    Cor
    Hello all, I'm using the pga309evm-usb after I had problems with the pga309evm without usb. This evm looks far more professional the the predecessor but i'm facing some problems. I have connected a full bridge sensor end setup all the jumpers to ext mode for the external bridge. If I want...
    on Mar 22, 2011

  • Forum Post: Re: pga309evm-usb usage

    Cor
    Hi, I got new software from TI (Arthur Kay). Every thing works fine now. It is exactly working as expected. It's a very good tool. All problems are solved now. Thanks, Cor
    on Apr 20, 2011

  • Forum Post: Re: How to address a single PGA309 via single I2C when using multiple PGA309?

    Ian Williams
    Hello André, Our resident PGA309 expert is out on vacation this week so I've taken a look at this for you. I did some initial testing with the PGA309EVM, and changing the voltage at the TEST pin from 0V to Vdd did not affect the digital communication of the chip. That indicates to me that...
    on Jul 27, 2011

  • Forum Post: Re: How to address a single PGA309 via single I2C when using multiple PGA309?

    Ian Williams
    Hello again André, Our suspicions were correct. You must multiplex the SDA and SCL lines of each PGA309 in your system. We have a useful document which provides guidance in selecting one of our I2C expander chips that would allow you to accomplish this: http://focus.ti.com/pdfs/logic/i2cselguide...
    on Aug 1, 2011

  • Forum Post: Multi-Cal-PGA309 Compatibility

    Cassandra Armstrong
    I was wondering if the multi-cal software is compatable with the PGA309 DAQ platform, and if it has the necessary calibration tables.
    on Aug 26, 2011

  • Forum Post: PGA309EVM-USB is losing calibration

    Danilo Carvalho
    Hello, I need to use PGA309 to acquire signal from a strain gauge. To do this I am using PGA309EVM-USB . I tested all functions of this EVM and everything is working well. But in my final test I need to acquire signal with a third acquisition board because the large number of samples. So I disconnected...
    on Sep 19, 2011

  • Forum Post: Re: PGA 309 Question

    Ian Williams
    Hello Paul, The input current at the REF IN /REF OUT pin flows through poly resistors, so accounting for process variation and temperature drift the max variation in spec is ±20%. With a typical value of 100µA the range becomes 80µA to 120µA. Best regards, Ian Williams...
    on Oct 4, 2011

  • Forum Post: PGA309 Checksum Error Event signaling

    Dariusz Knap
    Hello to All!, does somebody know whether it is possible to signalling if PGA309 detects an invalid checksum? In the manual I found the following sentences: "If at any time the PGA309 detects an invalid Checksum1 from the first part of the EEPROM, the PGA309 will disable VOUT , wait for approximately...
    on Nov 10, 2011

  • Forum Post: PGA309 Latching

    Lori Ferger
    I use the PGA309 in a voltage transducer design which is required to pass European Conformity testing (CE). I have taken two designs to a test lab and have difficulties passing the surge testing. The surge requirement is 1000 volts induced onto the power lines. I have designed in extensive circuitry...
    on Dec 2, 2011

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