Datasheet

PIC12(L)F1840
DS41441B-page 346 Preliminary  2011 Microchip Technology Inc.
TABLE 30-10: COMPARATOR SPECIFICATIONS
TABLE 30-11: DIGITAL-TO-ANALOG CONVERTER (DAC) SPECIFICATIONS
FIGURE 30-14: USART SYNCHRONOUS TRANSMISSION (MASTER/SLAVE) TIMING
Operating Conditions: 1.8V < VDD < 5.5V, -40°C < TA < +125°C (unless otherwise stated).
Param
No.
Sym. Characteristics Min. Typ. Max. Units Comments
CM01 VIOFF
Input Offset Voltage
(3)
—±7.5±60mV
CM02 V
ICM Input Common Mode Voltage 0 — VDD V
CM03 CMRR Common Mode Rejection Ratio — 50 — dB
CM04A
T
RESP
Response Time Rising Edge — 400 800 ns High Power Mode
(NOTE 1)
CM04B Response Time Falling Edge — 200 400 ns High Power Mode
(NOTE 1)
CM04C Response Time Rising Edge — 1200 — ns Low Power Mode
(NOTE 1)
CM04D Response Time Falling Edge — 550 — ns Low Power Mode
(NOTE 1)
CM05 T
MC2OV Comparator Mode Change to
Output Valid*
——10s
CM06 C
HYSTER Comparator Hysteresis — 45 — mV NOTE 2
* These parameters are characterized but not tested.
Note 1: Response time measured with one comparator input at VDD/2, while the other input transitions
from V
SS to VDD.
2: Comparator Hysteresis is available when the CxHYS bit of the CMxCON0 register is enabled.
3: High power only.
Operating Conditions: 2.5V < VDD < 5.5V, -40°C < TA < +85°C (unless otherwise stated).
Param
No.
Sym. Characteristics Min. Typ. Max. Units Comments
DAC01* C
LSB Step Size — VDD/32 — V
DAC02* C
ACC Absolute Accuracy — —  1/2 LSb
DAC03* CR Unit Resistor Value (R) — 5K — 
DAC04* C
ST Settling Time
(1)
——10s
* These parameters are characterized but not tested.
Legend: TBD = To Be Determined
Note 1: Settling time measured while DACR<4:0> transitions from ‘0000’ to ‘1111’.
Note: Refer to Figure 30-5 for load conditions.
US121
US121
US120
US122
CK
DT