Datasheet

82
XMEGA A1U [DATASHEET]
Atmel-8385H-AVR-ATxmega64A1U-128A1U-Datasheet–AVR–04/2014
Note: 1. Maximum numbers are based on characterisation and not tested in production, and valid for 5% to 95% input voltage range.
37.1.7 DAC Characteristics
Table 37-12. Power supply, reference and output range.
Table 37-13. Clock and timing.
Gain Error
1x gain, normal mode -0.7
%8x gain, normal mode -3.0
64x gain, normal mode -4.8
Offset Error,
input referred
1x gain, normal mode 0.4
mV8x gain, normal mode 0.4
64x gain, normal mode 0.4
Noise
1x gain, normal mode
V
CC
= 3.6V
Ext. V
REF
0.6
mV
rms
8x gain, normal mode 2.0
64x gain, normal mode 11
Symbol Parameter Condition Min. Typ. Max. Units
Symbol Parameter Condition Min. Typ. Max. Units
AV
CC
Analog supply voltage V
CC
- 0.3 V
CC
+ 0.3
AV
REF
External reference voltage 1.0 V
CC
- 0.6 V
R
channel
DC output impedance 50 
Linear output voltage range 0.15 AV
CC
-0.15 V
R
AREF
Reference input resistance >10 M
CAREF Reference input capacitance Static load 7 pF
Minimum resistance load 1 k
Maximum capacitance load
100 pF
1000 serial resistance 1 nF
Output sink/source
Operating within accuracy specification
AV
CC
/100
0
mA
Safe operation 10
Symbol Parameter Condition Min. Typ. Max. Units
Fclk Conversion rate Fout=Fclk/4, Cload=100pF, maximum step size 0 1000 ksps