C8051F320/1
66 Rev. 1.4
Table 7.1. Comparator Electrical Characteristics
V
DD
= 3.0 V, –40 to +85 °C unless otherwise noted. All specifications apply to both Comparator0 and Comparator1
unless otherwise noted.
Parameter Conditions Min Typ Max Units
Response Time:
Mode 0, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV — 100 — ns
CP0+ – CP0– = –100 mV — 250 — ns
Response Time:
Mode 1, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV — 175 — ns
CP0+ – CP0– = –100 mV — 500 — ns
Response Time:
Mode 2, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV — 320 — ns
CP0+ – CP0– = –100 mV — 1100 — ns
Response Time:
Mode 3, Vcm* = 1.5 V
CP0+ – CP0– = 100 mV — 1050 — ns
CP0+ – CP0– = –100 mV — 5200 — ns
Common-Mode Rejection Ratio — 1.5 4 mV/V
Positive Hysteresis 1 CP0HYP1–0 = 00 — 0 1 mV
Positive Hysteresis 2 CP0HYP1–0 = 01 2 5 10 mV
Positive Hysteresis 3 CP0HYP1–0 = 10 7 10 20 mV
Positive Hysteresis 4 CP0HYP1–0 = 11 15 20 30 mV
Negative Hysteresis 1 CP0HYN1–0 = 00 0 1 mV
Negative Hysteresis 2 CP0HYN1–0 = 01 2 5 10 mV
Negative Hysteresis 3 CP0HYN1–0 = 10 7 10 20
mV
Negative Hysteresis 4 CP0HYN1–0 = 11 15 20 30 mV
Inverting or Non-Inverting Input
V
oltage Range
–0.25 VDD + 0.25 V
Input Capacitance — 3 — pF
Input Bias Current — 0.001 — nA
Input Offset Voltage –5 — +5 mV
Power Supply
Power Supply Rejection — 0.1 — mV/V
Power-up Time — 10 — µs
Supply Current at DC
Mode 0 — 7.6 20 µA
Mode 1 — 3.2 10 µA
Mode 2 — 1.3 5 µA
Mode 3 — 0.4 2.5 µA
*Note: Vcm is the common-mode voltage on CP0+ and CP0-.
