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TIDA-00826: How to Simulate a PGA 6401 on TINA

Part Number: TIDA-00826
Other Parts Discussed in Thread: LMH6401

Hi,

I took the TIDA-00826 as reference and built the simulation by myself as i could not get the complete TINA Simulation file

I am stuck at changing the parameters of the PGA LMH6401 present in the design

Attached is my TINA Spice File

Kindly let me know how to set the programmable parameters of the device in TINA.

  • Hello Shyam,

      To change the attenuation or increase/decrease the gain of the LMH6401:

    1. In simulation: set B5, B4, B3, B2, B1, B0 to 0 or 1 via power supply of the device (VCC = 1 and VEE = 0). 
    2. In hardware, set registers via SPI communication 

      Use Table 10 on page 25 in the LMH6401 datasheet for both cases, below is an example in simulation: 

    Thank you,
    Sima