ATXMEGA128B1 Datasheet, PDF (76/138 Pages) ATMEL Corporation – 8/16-bit Atmel XMEGA B1 Microcontroller

Symbol Parameter
Condition⁽²⁾
Min.
Typ.
External reference
-5
AVCC/1.6
-5
AVCC/2.0
-6
Gain Error
Differential mode
Bandgap
±10
Temperature drift
0.02
Operating voltage drift
2
External reference
-8
AVCC/1.6
-8
Gain Error
Single ended
unsigned mode
AVCC/2.0
Bandgap
-8
±10
Temperature drift
0.03
Operating voltage drift
2
Notes:
1. Maximum numbers are based on characterisation and not tested in production, and valid for 10% to 90% input voltage range.
2. Unless otherwise noted all linearity, offset and gain error numbers are valid under the condition that external VREF is used.
Max. Units
mV
mV/K
mV/V
mV
mV/K
mV/V
Table 36-12. Gain stage characteristics.
Symbol
R_in
C_sample
Parameter
Input resistance
Input capacitance
Signal range
Condition
Switched in normal mode
Switched in normal mode
Gain stage output
Propagation delay
ADC conversion rate
Clock rate
Gain error
Offset error,
input referred
Same as ADC
0.5x gain, normal mode
1x gain, normal mode
8x gain, normal mode
64x gain, normal mode
0.5x gain, normal mode
1x gain, normal mode
8x gain, normal mode
64x gain, normal mode
Min.
0
100
Typ.
4.0
4.4
1
-1
-1
-1
10
10
10
-20
-150
Max.
AV_CC- 0.3
1800
Units
k
pF
V
Clk_ADC
cycles
kHz
%
mV
XMEGA B1 [DATASHEET] 76
8330C–AVR–07/2012