User's Manual

GS1500M DATA SHEET
PRELIMINARY GAINSPAN CONFIDENTIAL PAGE 28 OF 43
4.7 ADC Parameters
Test Conditions: VIN_3V3=VDDIO=Vbat=3.3V Temp=25ºC
Parameter
Minimum
Typical
Maximum
Unit
Notes
ADC Resolution
-
10
-
Bits
ADC Sample Freq
1.024
-
31.25
ksps
ADC input Clock Freq 32.768 - 1000 kHz
ADC Full Scale Voltage
VOUT_1V8 –
0.036
V
Reference =
VOUT_1V8
Conversion Time 32 Clocks
Based on internally
generated 1MHz or
32.768 KHz Clocks
ADC Integral Non-Linearity (INL) -2.0 - 2.0 LSB
ADC Differential non-linearity (DNL) -1.0 - 1.0 LSB
AVDD Power Supply current
(operational)
- 400 800
µ A
ADC Offset Error -10 - 10 mV
ADC Gain Error -10 - 10 mV
Settling Time - 1
µ S
Input resistance 1 - - MOhm
Input Capacitance - 10 - pF
Bandgap Output Voltage (Vref) (T = 25
ºC)
1.179 1.24 1.301 V
Table 4-11: ADC Parameters