32-bit ARM Cortex™-M3 MCU
HT32F1251/51B/52/53
ADC Characteristics
Table 15. ADC Characteristics
TA = 25°C, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDDA
Operating voltage
2.7
3.3
3.6
V
A/D Converter input
voltage range
VADCIN
IADC
0
—
1
VDDA
TBD
10
V
Current consumption
VDDA = 3.3 V
VDDA = 3.3 V
—
—
mA
uA
Power down current
consumption
IADC_DN
1
fADC
fS
A/D Converter clock
Sampling rate
0.7
—
—
14
1
MHz
MHz
0.05
A/D Converter
conversion time
fADCCONV
RI
—
—
14
—
—
1
tADC
Input sampling switch
resistance
kΩ
Input sampling
capacitance
CI
tSU
N
No pin/pad capacitance included
—
—
—
—
—
12
5
1
pF
us
Startup time
A/D Converter
Resolution
—
bits
Integral Non-linearity
error
INL
fS = 1 MHz, VDDA = 3.3 V
fS = 1 MHz, VDDA = 3.3 V
-—
—
±2
—
±5
±1
LSB
LSB
Differential Non-linearity
error
DNL
EO
EG
Offset error
Gain error
—
—
—
—
±10
±10
LSB
LSB
NOTES: 1. tADC = 1/fADC
.
2. Guaranteed by design, not tested in production.
Rev. 1.00
28 of 35
May 27, 2011
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
