CYRF89235 Datasheet, PDF (19/45 Pages) Cypress Semiconductor – PRoC™ USB

CYRF89235
ADC Electrical Specifications
Table 9. ADC User Module Electrical Specifications
Symbol
Input
V_IN
C_IIN
R_IN
Description
Input voltage range
Input capacitance
Input resistance
Reference
V_REFADC
ADC reference voltage
Conversion Rate
F_CLK
Data clock
S8
8-bit sample rate
S10
10-bit sample rate
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
Conditions
Min
Typ
Max Units
–
–
Equivalent switched cap input
resistance for 8-, 9-, or 10-bit
resolution
0
–
VREFADC V
–
–
5
pF
1/(500fF × 1/(400fF × 1/(300fF × 
data clock) data clock) data clock)
–
1.14
–
1.26
V
Source is chip’s internal main
2.25
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)
–
23.43
5.85
6
MHz
–
ksps
–
ksps
Can be set to 8-, 9-, or 10-bit
–
–
8-bit resolution
10-bit resolution
For any resolution
8
–
10
bits
–1
–
+2
LSB
–2
–
+2
LSB
0
3.20
19.20 LSB
0
12.80
76.80 LSB
–5
–
+5
%FSR
–
PSRR (VIN > 3.0 V)
PSRR (VIN < 3.0 V)
–
2.10
2.60
mA
–
24
–
dB
–
30
–
dB
Document Number: 001-77748 Rev. *F
Page 19 of 45