ZHCSLJ1C July 2020 – December 2022 ADC3541 , ADC3542 , ADC3543
PRODUCTION DATA
The ADC can be configured to operate with single ended input instead of differential using just the positive signal input. This operating mode must be enabled via SPI register write (address 0xE). The single ended signal is connected to the negative ADC input and both the positive and negative input need to be biased to VCM as shown in Figure 8-6.
The signal swing is now reduced by 6-dB (single ended input with 1.125 Vpp vs differential 2.25 Vpp), and the resulting SNR is reduced by 3-dB.