Datasheet

147
XMEGA C3 [DATASHEET]
8492F–AVR–07/2013
Table 33-127. Gain stage characteristics.
33.5.7 Analog Comparator Characteristics
Table 33-128. Analog Comparator characteristics.
Symbol Parameter Condition Min. Typ. Max. Units
R
in
Input resistance Switched in normal mode 4.0 k
C
sample
Input capacitance Switched in normal mode 4.4 pF
Signal range Gain stage output 0 AV
CC
- 0.6 V
Propagation delay ADC conversion rate 1/2 1 3
Clk
ADC
cycles
Clock frequency Same as ADC 100 1800 kHz
Gain error
0.5x gain, normal mode -1
%
1x gain, normal mode -1
8x gain, normal mode -1
64x gain, normal mode 5
Offset error,
input referred
0.5x gain, normal mode 10
mV
1x gain, normal mode 5
8x gain, normal mode -20
64x gain, normal mode -126
Symbol Parameter Condition Min. Typ. Max. Units
V
off
Input offset voltage 10 mV
I
lk
Input leakage current <10 50 nA
Input voltage range -0.1 AV
CC
V
AC startup time 50 µs
V
hys1
Hysteresis, none Vcc=1.6V - 3.6V 0
mVV
hys2
Hysteresis, small Vcc=1.6V - 3.6V 15
V
hys3
Hysteresis, large Vcc=1.6V - 3.6V 30
t
delay
Propagation delay
V
CC
= 3.0V, T= 85°C 20 40
ns
V
CC
= 3.0V 17
64-level voltage scaler Integral non-linearity (INL) 0.3 0.5 lsb
Current source accuracy
after calibration
5 %
Current source calibration
range
Single mode 4 6 µA