Answered

• ADC3421: ok to drive 3 x ADC3421 with the same clock

  

  Ue

  Resolved

  Part Number: ADC3421 Other Parts Discussed in Thread: CDCLVP2102 , LMK00304 , CDCLVP1204 Tool/software: Hi all My customer plans to be using 3 x ADC3421IRTQR and they have this question: Is it ok to drive the 3 ADCs with the same clock ? (Pin 21…

  • Resolved

  • 5 months ago
  • Data converters
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• ADC3421: Power-down modes

  

  Yosuf Taraki

  TI Thinks Resolved

  Part Number: ADC3421 Tool/software: I would like to better understand the various power-down modes of operation for the ADC3421. Register 15h has bits assigned for powering down individual channels (A, B, C, D). There is also a STANDBY bit and a Global…

  • over 1 year ago
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Answered

• ADC3421: Input Impedance

  

  Keith Keller

  Resolved

  Part Number: ADC3421 Hello, Could you please share the input impedance for the ADC3421? Is the input impedance the same for the whole family of devices? Thank you, Keith

  • Resolved

  • over 1 year ago
  • Data converters
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• ADC3421: Unused Input Connections

  

  Keith Keller

  TI Thinks Resolved

  Part Number: ADC3421 Hello, We are designing with the ADC3421. What is the recommended termination methods for unused ADC inputs, unused LVDS outputs, unused SYSREFM, SYSREFP? Thank you, Keith

  • over 1 year ago
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• ADC3421-Q1: Frequency information for SYSREF pins.

  

  Joselito Go

  TI Thinks Resolved

  Part Number: ADC3421-Q1 Hi Experts, Good day. I need your help with the frequency information for SYSREF pins. What should be the required frequency? Keep safe. Regards, Josel

  • over 2 years ago
  • Data converters
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Answered

• ADC3421: Single-Ended Clock Driving

  

  Bernd Sprenger

  Resolved

  Part Number: ADC3421 Hello, according to page 43 of the datasheet, the clock can be driven by a single-ended CMOS clock. What signaling levels are best used for this purpose? 1.8V/2.5V/3.3 V LVCMOS/LVTTL? (SNR degradation due to increased jitter is…

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  • over 3 years ago
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• ADC3421: Maximum capacitance on VCM

  

  Daniel Baldor

  TI Thinks Resolved

  Part Number: ADC3421 Other Parts Discussed in Thread: OPA4991 Hi, What is the maximum capacitance I can put on the VCM pin. I am using VCM to bias my ac coupled inputs and I am getting some crosstalk and noise coupling between channels - I believe via…

  • over 4 years ago
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Answered

• ADC3421: Test patterns

  

  Daniel Baldor

  Resolved

  Part Number: ADC3421 Hi, I am working on interfacing the ADC3421 to my FPGA using single serial link (1 per output). The ADC is running at 25MSPS and I have had some trouble getting the correct output out of all the different test patterns. I am finding…

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  • over 5 years ago
  • Data converters
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• ADC3421: What's the INL of this device?

  

  Roy Hsu

  TI Thinks Resolved

  Part Number: ADC3421 Hi Team, What's the INL of this device? Thanks. Roy

  • over 5 years ago
  • Data converters
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• ADC3421: Time between CLK-in to valid data out

  

  Holger Weiss1

  Part Number: ADC3421 In our application we programm the ADC via SPI before the CLKin is applied. The CLKin can only be applied for a certain time until the acqusition is done. Once the CLKin is applied it will take some time until the PLL for DCLK/FCLK…

  • over 5 years ago
  • Data converters
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