Datasheet

 2018 Microchip Technology Inc. Data Sheet Complete DS40002058A-page 111
ATxmega128A1U/ATxmega64A1U
Note: 1. Maximum numbers are based on characterisation and not tested in production, and valid for 5% to 95% input voltage range.
37.2.7 DAC Characteristics
Table 37-46. Power supply, reference and output range.
Table 37-47. 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
AV
CC
Analog supply voltage V
CC
- 0.3 V
CC
+ 0.3
V
AV
REF
External reference voltage 1.0 V
CC
- 0.6
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
/
1000
mA
Safe operation 10
Symbol Parameter Condition Min. Typ. Max. Units
f
DAC
Conversion rate
C
load
=100pF,
maximum step size
Normal mode 0 1000
ksps
Low power mode 500
Symbol Parameter Condition Min. Typ. Max. Units