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Which of these fully-differential ADCs has higher input dynamic range?

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powersys

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I'm not familiar with fully differential ADCs. For example, the following two ADCs:

[A] LTC2389-16 - 16-Bit, 2.5Msps SAR ADC with Pin-Configurable Analog Input Range and 96dB SNR
Pin-Configurable Analog Input Range:
±4.096V Fully Differential
0V to 4.096V Pseudo-Differential Unipolar
±2.048V Pseudo-Differential Bipolar
https://www.linear.com/product/LTC2389-16

ADS8422 - 16 Bit 4MSPS Parallel ADC W/Ref, Pseudo Bipolar, Fully Differential Input
Fully Differential Input with Pseudo-Bipolar Input Range -4 V to +4 V
https://www.ti.com/product/ads8422

Are the input dynamic input ranges of both ADCs above the same? LTC2389-16 accepts pseudo-differential bipolar of ±2.048V whilst ADS8422 accepts pseudo-bipolar input of -4V to +4V. Or, ADS8422 has higher dynamic input range?
 

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