CYBLE-224116-01
Document Number: 002-12524 Rev. *D
Page 24 of 47
Temperature Sensor
SAR ADC
Table 23. Comparator AC Specifications
Parameter
Description
Min
Typ
Max
Units
Details/Conditions
T
RESP1
Response time, normal mode, 50-mV
overdrive
–
38
– ns
50-mV
overdrive
T
RESP2
Response time, low-power mode, 50-mV
overdrive
–
70
– ns
50-mV
overdrive
T
RESP3
Response time, ultra-low-power mode,
50-mV overdrive
–
2.3
– µs
200-mV
overdrive
V
DD
2.6 V for
Temp < 0 °C
V
DD
2.0 V for
Temp < 0 °C
Table 24. Temperature Sensor Specifications
Parameter
Description
Min
Typ
Max
Units
Details/Conditions
T
SENSACC
Temperature-sensor accuracy
–5
±1
5
°C
–40 to +85 °C
Note
10. A maximum of eight single-ended ADC Channels can be accomplished only if the AMUX Buses are not being used for other functionality (such as CapSense).
If the AMUX Buses are being used for other functionality, then the maximum number of single-ended ADC channels is six. Similarly, if the AMUX Buses are
being used for other functionalty, then the maximum number of differential ADC channels is three.
Table 25. SAR ADC DC Specifications
Parameter
Description
Min
Typ
Max
Units
Details/Conditions
A_RES
Resolution
–
–
12
bits
A_CHNIS_S
Number of channels - single-ended
–
–
8
8 full-speed
[10]
A-CHNKS_D
Number of channels - differential
–
–
4
Diff inputs use
neighboring I/O
[10]
A-MONO
Monotonicity
–
–
–
Yes
A_GAINERR
Gain error
–
–
±0.1
%
With external reference
A_OFFSET
Input offset voltage
–
–
2
mV
Measured with 1-V V
REF
A_ISAR
Current consumption
–
–
1
mA
A_VINS
Input voltage range - single-ended
V
SS
–
V
DDA
V
A_VIND
Input voltage range - differential
V
SS
– V
DDA
V
A_INRES
Input resistance
–
–
2.2
k
A_INCAP
Input capacitance
–
–
10
pF
VREFSAR
Trimmed internal reference to SAR
–1
–
1
%
Percentage of Vbg
(1.024 V)
Table 26. SAR ADC AC Specifications
Parameter
Description
Min
Typ
Max
Units
Details/Conditions
A_PSRR
Power-supply rejection ratio
70
–
–
dB
Measured at 1-V
reference
A_CMRR
Common-mode rejection ratio
66
–
–
dB
A_SAMP
Sample rate
–
–
1
Msps
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