User's Manual

CYBLE-212019-00
Document Number: 002-09764 Rev. ** Page 17 of 31
CSD
A_dnl Differential nonlinearity. V
DD
= 1.71 V to
5.5 V, 1 Msps
–1 – 2.2 LSB V
REF
= 1 V to V
DD
A_DNL Differential nonlinearity. V
DD
= 1.71 V to
3.6 V, 1 Msps
–1 – 2 LSB V
REF
= 1.71 V to V
DD
A_DNL Differential nonlinearity. V
DD
= 1.71 V to
5.5 V, 500 Ksps
–1 – 2.2 LSB V
REF
= 1 V to V
DD
A_THD Total harmonic distortion – – –65 dB F
IN
= 10 kHz
Table 19. SAR ADC AC Specifications (continued)
Parameter Description Min Typ Max Units
Details/
Conditions
CSD Block Specifications
Parameter Description Min Typ Max Units
Details/
Conditions
V
CSD
Voltage range of operation 1.71 – 5.5 V
IDAC1 DNL for 8-bit resolution –1 – 1 LSB
IDAC1 INL for 8-bit resolution –3 – 3 LSB
IDAC2 DNL for 7-bit resolution –1 – 1 LSB
IDAC2 INL for 7-bit resolution –3 – 3 LSB
SNR Ratio of counts of finger to noise 5 – – Ratio
Capacitance range of
9 pF to 35 pF, 0.1-pF
sensitivity. Radio is not
operating during the
scan
I
DAC1_CRT1
Output current of IDAC1 (8 bits) in High
range
–612 – µA
I
DAC1_CRT2
Output current of IDAC1 (8 bits) in Low
range
–306 – µA
I
DAC2_CRT1
Output current of IDAC2 (7 bits) in High
range
–305 – µA
I
DAC2_CRT2
Output current of IDAC2 (7 bits) in Low
range
–153 – µA