docs/cn0577: Update intro

Signed-off-by: Stanca Pop <[email protected]>

Author: StancaPop

docs/projects/cn0577/index.rst

@@ -7,9 +7,9 @@ Overview
 -------------------------------------------------------------------------------
 
 The :adi:`CN0577` provides an analog front-end and an FMC
-digital interface for :adi:`LTC2387-18`, its core. It is a low noise, high
-speed successive approximation register (SAR) ADC with a resolution of 18 bits
-and sampling rate up to 15MSPS.
+digital interface for :adi:`LTC2387-18`/ :adi:`LTC2387-16` its core. It is a low
+noise, high speed successive approximation register (SAR) ADC with a resolution
+of 18/16 bits and sampling rate up to 15MSPS.
 
 :adi:`CN0577` includes an on-board reference oscillator and a
 retiming circuit to minimize signal-to-noise ratio (SNR) degradation due to the