CY8C20X36A_12 Datasheet, PDF (24/47 Pages) Cypress Semiconductor – 1.8 V CapSense® Controller with SmartSense™ Auto-tuning

CY8C20X36A/46A/66A/96A/46AS/66AS
Comparator User Module Electrical Specifications
The following table lists the guaranteed maximum and minimum specifications. Unless stated otherwise, the specifications are for the
entire device voltage and temperature operating range: –40 °C  T_A  85 °C, 1.71 V  V_DD  5.5 V.
Table 20. Comparator User Module Electrical Specifications
Symbol
t_COMP
Offset
Current
PSRR
Input range
Description
Comparator response time
Supply voltage > 2 V
Supply voltage < 2 V
Conditions
50 mV overdrive
Valid from 0.2 V to V_DD – 0.2 V
Average DC current, 50 mV
overdrive
Power supply rejection ratio
Power supply rejection ratio
–
Min
Typ
Max Units
–
70
100
ns
–
2.5
30
mV
–
20
80
µA
–
80
–
dB
–
40
–
dB
0
1.5
V
ADC Electrical Specifications
Table 21. ADC User Module Electrical Specifications
Symbol
Input
V_IN
C_IIN
R_IN
Description
Input voltage range
Input capacitance
Input resistance
Conditions
–
–
Equivalent switched cap input
resistance for 8-, 9-, or 10-bit
resolution
Reference
V_REFADC
ADC reference voltage
Conversion Rate
F_CLK
Data clock
S8
8-bit sample rate
S10
10-bit sample rate
–
Source is chip’s internal main
oscillator. See AC Chip-Level
Specifications for accuracy
Data clock set to 6 MHz. sample
rate = 0.001/ (2^Resolution/Data
Clock)
Data clock set to 6 MHz. sample
rate = 0.001/ (2^resolution/data
clock)
DC Accuracy
RES
DNL
INL
E_OFFSET
Resolution
Differential nonlinearity
Integral nonlinearity
Offset error
E_GAIN
Power
I_ADC
PSRR
Gain error
Operating current
Power supply rejection ratio
Can be set to 8-, 9-, or 10-bit
–
–
8-bit resolution
10-bit resolution
For any resolution
–
PSRR (V_DD > 3.0 V)
PSRR (V_DD < 3.0 V)
Min
Typ
Max Units
0
–
VREFADC V
–
–
5
pF
1/(500fF × 1/(400fF × 1/(300fF × 
data clock) data clock) data clock)
1.14
–
1.26
V
2.25
–
6
MHz
–
23.43
–
ksps
–
5.85
–
ksps
8
–
10
bits
–1
–
+2
LSB
–2
–
+2
LSB
0
3.20
19.20 LSB
0
12.80
76.80 LSB
–5
–
+5
%FSR
–
2.10
2.60
mA
–
24
–
dB
–
30
–
dB
Document Number: 001-54459 Rev. *O
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