Datasheet

XMEGA A4U [DATASHEET]
Atmel-8387G-AVR-ATxmega16A4U-34A4U-64A4U-128A4U-Datasheet_03/2014
102
36.2.8 Analog Comparator Characteristics
Table 36-47. Analog Comparator characteristics.
36.2.9 Bandgap and Internal 1.0V Reference Characteristics
Table 36-48. Bandgap and Internal 1.0V reference characteristics.
Symbol Parameter Condition Min. Typ. Max. Units
V
off
Input offset voltage <±10 mV
I
lk
Input leakage current <1 nA
Input voltage range -0.1 AV
CC
V
AC startup time 100 µs
V
hys1
Hysteresis, none 0 mV
V
hys2
Hysteresis, small
mode = High Speed (HS) 13
mV
mode = Low Power (LP) 30
V
hys3
Hysteresis, large
mode = HS 30
mV
mode = LP 60
t
delay
Propagation delay
V
CC
= 3.0V, T= 85°C mode = HS 30 90
ns
mode = HS 30
V
CC
= 3.0V, T= 85°C mode = LP 130 500
mode = LP 130
64-level voltage scaler Integral non-linearity (INL) 0.3 0.5 lsb
Symbol Parameter Condition Min. Typ. Max. Units
Startup time
As reference for ADC or DAC 1 Clk
PER
+ 2.5µs
µs
As input voltage to ADC and AC 1.5
Bandgap voltage 1.1 V
INT1V Internal 1.00V reference T= 85°C, after calibration 0.99 1.0 1.01 V
Variation over voltage and temperature Relative to T= 85°C, V
CC
= 3.0V ±1.5 %