xmega a3u - Elfa
xmega a3u - Elfa
xmega a3u - Elfa
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XMEGA A3U<br />
36.7 DAC Characteristics<br />
Table 36-12. Power supply, reference and output range.<br />
Symbol Parameter Condition Min. Typ. Max. Units<br />
AV CC Analog supply voltage V CC - 0.3 V CC + 0.3<br />
AV REF External reference voltage 1.0 V CC - 0.6 V<br />
R channel DC output impedance 50 Ω<br />
Linear output voltage range 0.15 AV CC -0.15 V<br />
R AREF Reference input resistance >10 MΩ<br />
C AREF Reference input capacitance Static load 7 pF<br />
Minimum Resistance load 1 kΩ<br />
Maximum capacitance load<br />
100 pF<br />
1000Ω serial resistance 1 nF<br />
Output sink/source<br />
Operating within accuracy specification AV CC /1000<br />
Safe operation 10<br />
mA<br />
Table 36-13.<br />
Clock and timing.<br />
Symbol Parameter Condition Min. Typ. Max. Units<br />
Fclk<br />
Conversion rate<br />
Fout=Fclk/4,<br />
Cload=100pF, maximum step size<br />
0 1000<br />
0 1000<br />
ksps<br />
Table 36-14.<br />
Accuracy characteristics.<br />
Symbol Parameter Condition Min. Typ. Max. Units<br />
RES Input Resolution 12 Bits<br />
INL (1)<br />
DNL (1)<br />
Integral non-linearity<br />
Differential non-linearity<br />
V REF = Ext 1.0V<br />
V CC = 1.6V ±2.0 ±3 lsb<br />
V CC = 3.6V ±1.5 ±2.5<br />
V REF =AV CC<br />
V CC = 3.6V ±1.5 ±4<br />
V CC = 1.6V ±2.0 ±4<br />
V REF =INT1V<br />
V CC = 1.6V ±5.0<br />
V CC = 3.6V ±5.0<br />
V REF =Ext 1.0V<br />
V CC = 1.6V ±1.5 3<br />
V CC = 3.6V ±0.6 1.5<br />
V REF =AV CC<br />
V CC = 3.6V ±0.6 1.5<br />
V CC = 1.6V ±1.0 3.5<br />
V REF =INT1V<br />
V CC = 1.6V ±4.5<br />
V CC = 3.6V ±4.5<br />
lsb<br />
8386B–AVR–12/11<br />
78
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