32-bit ARM Cortex™-M3 MCU
HT32F1251/51B/52/53
Operation Amplifier/Comparator Characteristics
Table 16. OPA/CMP Characteristics
TA = 25°C, unless otherwise specified.
Symbol
VDDA
Parameter
Conditions
Min
2.7
—
Typ
3.3
Max
3.6
—
Unit
V
Operating voltage
Typical operating current
IOPA/CMP
230
uA
Assign registers OPAEN = 0
and EN_OPAOP = 0
IOPA/CMP_DN Power down supply current
—
—
—
0.1
uA
V
DDA = 3.3 V,
-15
15
1
mV
AnOF[5:0] = ‘100000’
VIOS
Input offset voltage
VDDA = 3.3 V, After calibration
-1
—
100
1,3
mV
dB
GV
Ut
Voltage Gain
60
RL=100KΩ
Unit-Gain Bandwidth
MHz
RL=100KΩ, CL=100pF
1.24
VDDA
0.6
–
VCM
tRT
Common mode voltage range VDDA = 3.3 V
VSSA
—
—
1
V
VDDA = 3.3 V;
Comparator response time
—
us
Input Overdrive = ±10mV
VDDA = 3.3 V;
Output capacitor load
CL=100pF
SR
Slew Rate
1.6
V/us
NOTE: Guaranteed by design, not tested in production.
GPTM Characteristics
Table 17. GPTM Characteristics
Symbol
fGPTM
Parameter
Timer clock source
Timer resolution time
Conditions
Min
—
Typ
—
Max
72
Unit
MHz
—
—
tRES
1
—
—
1/fGPTM
External signal frequency on
channel 1 ~ 4
fEXT
—
—
—
—
—
—
1/2
16
fGPTM
bits
RES
Timer resolution
Rev. 1.00
29 of 35
May 27, 2011
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
