
4.1.17 Capacitive Sense (CSEN)
Table 4.33. Capacitive Sense (CSEN)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Single conversion time (1x
accumulation)
t
CNV
12-bit SAR Conversions
—
20.2
—
µs
16-bit SAR Conversions
—
26.4
—
µs
Delta Modulation Conversion (sin-
gle comparison)
—
1.55
—
µs
Maximum external capacitive
load
C
EXTMAX
IREFPROG=7 (Gain = 1x), includ-
ing routing parasitics
—
68
—
pF
IREFPROG=0 (Gain = 10x), in-
cluding routing parasitics
—
680
—
pF
Maximum external series im-
pedance
R
EXTMAX
—
1
—
kΩ
Supply current, EM2 bonded
conversions, WARMUP-
MODE=NORMAL, WAR-
MUPCNT=0
I
CSEN_BOND
12-bit SAR conversions, 20 ms
conversion rate, IREFPROG=7
(Gain = 1x), 10 channels bonded
(total capacitance of 330 pF)
—
326
—
nA
Delta Modulation conversions, 20
ms conversion rate, IRE-
FPROG=7 (Gain = 1x), 10 chan-
nels bonded (total capacitance of
330 pF)
—
226
—
nA
12-bit SAR conversions, 200 ms
conversion rate, IREFPROG=7
(Gain = 1x), 10 channels bonded
(total capacitance of 330 pF)
—
33
—
nA
Delta Modulation conversions,
200 ms conversion rate, IRE-
FPROG=7 (Gain = 1x), 10 chan-
nels bonded (total capacitance of
330 pF)
—
25
—
nA
Supply current, EM2 scan
conversions, WARMUP-
MODE=NORMAL, WAR-
MUPCNT=0
I
CSEN_EM2
12-bit SAR conversions, 20 ms
scan rate, IREFPROG=0 (Gain =
10x), 8 samples per scan
—
690
—
nA
Delta Modulation conversions, 20
ms scan rate, 8 comparisons per
sample (DMCR = 1, DMR = 2),
IREFPROG=0 (Gain = 10x), 8
samples per scan
—
515
—
nA
12-bit SAR conversions, 200 ms
scan rate, IREFPROG=0 (Gain =
10x), 8 samples per scan
—
79
—
nA
Delta Modulation conversions,
200 ms scan rate, 8 comparisons
per sample (DMCR = 1, DMR =
2), IREFPROG=0 (Gain = 10x), 8
samples per scan
—
57
—
nA
BGM13S Blue Gecko
Bluetooth
®
SiP Module Data Sheet
Electrical Specifications
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