• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 48 subscribers
  • Views 809 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.

Competitive device with AD603

Ryuji
Guru 20090 points
Other Parts Discussed in Thread: LMH6505, LMH6502, LMH6518

Hello,

Could you please let me know the competitive device with AD603?
I already proposed LMH6505 and LMH6502.

However, the customer request high gain accuracy in full temperature range.
AD603 has +/-1.5dB accuracy in full temp...
LMH6505 and LMH6502 don't have similar gain accuracy in full temp.

Best Regards,
Ryuji Asaka

  • 0
    TI__Mastermind 22825 points

    Hi Ryuji,

    Is the LMH6518 a possibility? From Figure 31 below, it looks like the typical variation over temperature is within 0.3dB total shift at a given x-axis (ladder attenuation). Over the entire gain range and over temperature, the typical variation is slightly more (<0.35dB).

    LMH6518:

    I see the AD603 Gain Accuracy over temperature as 3dB (+/-1.5dB). Is that the spec you are going for?

    AD603:

    Regards,

    Hooman

  • 0 in reply to Hooman Hashemi
    Guru 20090 points
    Hello Hooman san,

    Thank you for the information.
    LMH6518 has good gain accuracy Coefficient.
    I will introduce this device to the customer.
    However, they may not accept the digitaly gain control due to they already use the AD603 of linear control.

    Best Regards,
    Ryuji Asaka