Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

  • State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 47 subscribers
  • Views 219 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LMP8278Q-Q1: Higher Gain Amplifier Recommendation like LMP8272Q-Q1

Songzhen Guo
Intellectual 2840 points
Part Number: LMP8278Q-Q1
Other Parts Discussed in Thread: INA271

Hi Team,

LMP8278Q-Q1 is evaluated in customer site. We want to use LMP8278Q-Q1 to replace AD8208. For the fist stage gain, LMP8278Q-Q1 is  7, AD8208 is 10.

Do we have same amplifier like AD8208. Could you help us on that? Thanks.

By the way, If we don't have same device like AD8208, please help me to make a comparison table for AD8208 and LMP8278Q-Q1, so I can convince customer use TI's device next time. Thanks.

BR

Songzhen Guo

  • 0
    TI__Mastermind 29710 points

    Songzhen,

    If you need the same package and gain pinout this limits the choices.  The one you mention is the closest to what you would require.  For a gain of 20 you could look at the INA271 as it will fit the package, pinout and gain but there are some non-linearity behavior when Vsense <20mV.  Please see the datahseet section, 9.1.3 Accuracy Variations as a Result of VSENSE and Common-Mode Voltage, for more details.