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  • RE: PGA870: Need design review and confirmation on PGA870 + ADS5560

    Resolved
    Hello Arun, Thank you for trying out the suggested values. The reason is due to these capacitors attenuating the signal at 20Hz input due to the suggested AC coupling cap values. However, with a pulse rise time of <10ns, the bandwidth you would need…
    • Answered

  • PGA870: 16bit alternative

    Resolved
    Part Number: PGA870 Other Parts Discussed in Thread: LMH6517 , PGA281 Hi, I am current designing a data acquisition board for my research. I am planning on using the ADC AD7381 . However, I was having a hard time finding an appropriate PGA to go with…
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    • Answered

  • PGA870: Minimum frequency response

    Resolved
    Part Number: PGA870 Hi Ti Community Is there a minimum frequency response for PGA870. Can it be used in audio applications in the frequency range 100Hz to 3kHz. If not are there any fully differential PGA or VGA that is suitable for audio applications…
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    • Answered

  • TINA/Spice/PGA870: PGA usage handholding

    Resolved
    Part Number: PGA870 Other Parts Discussed in Thread: TINA-TI , Tool/software: TINA-TI or Spice Models Hi, i have simulated PGA870 with ±2.5 split supply and rest of the connected capacitors are used by referring datasheet. I want to excite the circuit…
    • Resolved

  • PGA870: PGA870 offset

    TI Thinks Resolved
    Part Number: PGA870 What is the valid range of DC offset which can be applied to the inverting input with gain at 0dB, and 20 dB ?

  • PGA870: Using a transformer based differential to single ended converter output stage

    Part Number: PGA870 Hi, Can you please confirm if the following topology is fine, wherein I use a transformer based differential to single ended conversion stage as shown below, to use the converted output to drive a single ended buffer? Assume input…

  • PGA870 Schematic Check

    Other Parts Discussed in Thread: PGA870 , LMH6553 , LMH6702 Dear support team Our customer considers whether they add LMH6553 after PGA870. This reason is the following - Get 14db gain (differential input, single-end output) - Limit 1V of output voltage …
    • Answered

  • Setup and hold time of PGA870

    Resolved
    Hello, I'm FAE of distributor in Japan. My customers ask me spec,but not in data sheet. Now they already built system with No latch mode. They think to modify mode and ask some questions. Q1) In case no latch Mode, What value ns does it need to fix…
    • Resolved

  • PGA870 Prototyping

    Other Parts Discussed in Thread: PGA870 , LMV7239 , LMH6702 I am working with a team of engineers to design and build a time-domain reflectometer. We need to input a signal into the base of a bjt with a range of 0 to 5V. We want to use the PGA870 to control…

  • RE: [PGA870] The output waveform level at the time of gain switching

    Hello Yoshida-san, It seems that you are operating the PGA870 in "No latch" mode because the LATCH pins and GAIN_STROBE pins are pulled up to 5V. In this condition as Loren mentioned, the gain settling time would be dependent upon the race co…

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