EM357-RTR datasheet(182/241 Pages) SILABS

182 / 241 page

Rev 1.3

182

Table 10.9 lists other specifications for the ADC not covered in Tables 10.6, 10.7, and 10.8.

Table 10.9. ADC Specifications*

Parameter

Min

Typ

Max

Units

VREF

1.17

1.2

1.23

VREF output current

VREF load capacitance

External VREF voltage range

1.1

1.2

1.3

External VREF input impedance



Minimum input voltage

Maximum input voltage

VREF

Single-ended signal range

VREF

Differential signal range

–VREF

+VREF

Common mode range

VREF

Input referred ADC offset

–10

Input Impedance

1 MHz sample clock

6 MHz sample clock

Not sampling

0.5



*Note:

The signal-ended ADC measurements are limited in their range and only guaranteed for accuracy within the limits

shown in this table. The ADC's internal design allows for measurements outside of this range (±200 mV), but the

accuracy of such measurements is not guaranteed. The maximum input voltage is of more interest to the differential

sampling where a differential measurement might be small, but a common mode can push the actual input voltage on

one of the signals towards the upper voltage limit.

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