Datasheet

R01DS0041EJ0150 Rev.1.50 Page 190 of 221
Oct 18, 2013
RX210 Group 5. Electrical Characteristics
Figure 5.102 A/D Conversion Timing Example of the Temperature Sensor (Two Conversions
Performed)
5.7 Comparator Characteristics
Note 1. When the digital filter is disabled.
Table 5.70 Comparator Characteristics
Conditions: VCC = AVCC0 = 1.62 to 5.5 V, VSS = AVSS0 = VREFL = VREFL0 = 0 V, T
a
= –40 to +105°C
Item Symbol Min. Typ. Max. Unit Test Conditions
Comparator A External reference voltage input
range
LVREF 1.4 ― VCC V
External comparison voltage
(CMPA1, CMPA2) input range
VI –0.3 ― VCC + 0.3 V
Offset ――±50 ±150 mV
Comparator output delay time*
1
―― 3 ― µs At falling edge
VI = LVREF – 110 mV
― 2 ― µs At falling edge
VI < LVREF – 1 V
― 3 ― µs At rising edge
VI = LVREF + 160 mV
― 1.5 ― µs At rising edge
VI
> LVREF + 1 V
Comparator operating current ICMPA ― 0.5 ― µA VCC = 5.0 V
Comparator B Input reference voltage for
CVREFB0, CVREFB1
VREF 0 ― VCC – 1.4 V
Input voltage for CMPB0,
CMPB1
VI –0.3 ― VCC + 0.3 V
Offset ――±10 ±100 mV
Comparator output delay time t
d
―― 1µs
VI = VREF + 100 mV
Comparator operating current ICMPB ― 75 150 µA VCC = 5.0 V
For total two channels
A/D interrupt request
(S12ADI0)
TSEN
PGAEN
t
START
t
RST_PGA
Trigger to start A/D
conversion from the
temperature sensor
(internal signal)
A/D converter
A/D activation trigger
PGA is stopped
Idle
A/D
conversion
SamplingIdle
A/D
conversion
SamplingIdle
1st result of A/D conversion of the temperature
sensor output
2nd result of A/D conversion of the
temperature sensor output
Temperature
sensor is stopped
Temperature sensor is operating
PGA is operating PGA is operating
PGA is
stopped
Automatic clearing Automatic clearing
A/D activation trigger
ADTSDR register