TLV320ADC3101: Bode Plot

Ernest Yong

Part Number: TLV320ADC3101
Other Parts Discussed in Thread: TLV320ADC6140, TLV320ADC5140

Hi Team,

Customer is planning to use the below ADC for digitizing IQ signals of a radar 0-16kHz, and they noticed that there is a PGA in this ADC

2x TLV320ADC3101

1x TLV320ADC5140/TLV320ADC6140

Do we have the bode plots of the these amps to check the frequency response?

Many thanks!

over 3 years ago

0 Sanjay Dixit over 3 years ago

TI__Mastermind 23030 points

The 5140 PGA should be aable to handle 20k signals at a Gain setting of 42b without attenuation

0 Ernest Yong over 3 years ago in reply to Sanjay Dixit

TI__Expert 4830 points

Hi Sanjay,

Thanks for your response. Do we have any bode plot for this?

+1 Sanjay Dixit over 3 years ago in reply to Ernest Yong

TI__Mastermind 23030 points

I dont have any formal plots that i know of.

0 Ernest Yong over 3 years ago in reply to Sanjay Dixit

TI__Expert 4830 points

Is there any analogue band limiting circuits built in to the front end for the low side ? or only the digital filters at the o/p of ADC for limiting is available ..

0 Sanjay Dixit over 3 years ago in reply to Ernest Yong

TI__Mastermind 23030 points

The Input Coupling Capacitors along with the Input Impedance of the Chip form a High Pass filter. This controls the Lowest analog frequency that can be coupled into the chip

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TLV320ADC3101: Bode Plot