Datasheet

130
XMEGA D4 [DATASHEET]
8135P–AVR–01/2014
Table 32-96. Gain stage characteristics.
Note: 1. Maximum numbers are based on characterisation and not tested in production, and valid for 5% to 95% input voltage range.
32.4.7 Analog Comparator Characteristics
Table 32-97. 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 V
CC
- 0.6 V
Propagation delay ADC conversion rate 1
Clk
ADC
cycles
Sample rate Same as ADC 14 200 kHz
INL
(1)
Integral non-linearity 50ksps
All gain
settings
±1.5 ±4 lsb
Gain error
1x gain, normal mode -0.8
%8x gain, normal mode -2.5
64x gain, normal mode -3.5
Offset error,
input referred
1x gain, normal mode -2
mV8x gain, normal mode -5
64x gain, normal mode -4
Noise
1x gain, normal mode
V
CC
= 3.6V
Ext. V
REF
0.5
mV
rms
8x gain, normal mode 1.5
64x gain, normal mode 11
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
mVV
hys2
Hysteresis, small 13
V
hys3
Hysteresis, large 30
t
delay
Propagation delay
V
CC
= 3.0V, T= 85°C mode = HS 30 90
ns
30
64-Level voltage scaler Integral non-linearity (INL) 0.3 0.5 lsb