MSP430F663x
SLAS566C –JUNE 2010–REVISED AUGUST 2012
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12-Bit DAC, Output Specifications
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX UNIT
No load, VeREF+ = AVCC
,
DAC12_xDAT = 0h, DAC12IR = 1,
DAC12AMPx = 7
0
0.005
No load, VeREF+ = AVCC
DAC12_xDAT = 0FFFh, DAC12IR = 1,
DAC12AMPx = 7
,
AVCC
–
AVCC
0.05
Output voltage
VO
range(1) (see
Figure 18)
2.2 V, 3 V
V
RLoad = 3 kΩ, VeREF+ = AVCC
,
DAC12_xDAT = 0h, DAC12IR = 1,
DAC12AMPx = 7
0
0.1
RLoad = 3 kΩ, VeREF+ = AVCC
DAC12_xDAT = 0FFFh, DAC12IR = 1,
DAC12AMPx = 7
,
AVCC
–
AVCC
0.13
Maximum DAC12
load capacitance
CL(DAC12)
2.2 V, 3 V
2.2 V, 3 V
100
pF
DAC12AMPx = 2, DAC12xDAT = 0FFFh,
VO/P(DAC12) > AVCC – 0.3
–1
Maximum DAC12
load current
IL(DAC12)
mA
DAC12AMPx = 2, DAC12xDAT = 0h,
VO/P(DAC12) < 0.3 V
1
250
250
6
RLoad = 3 kΩ, VO/P(DAC12) < 0.3 V,
DAC12AMPx = 2, DAC12_xDAT = 0h
150
150
Output resistance RLoad = 3 kΩ, VO/P(DAC12) > AVCC – 0.3 V,
(see Figure 18)
RO/P(DAC12)
2.2 V, 3 V
Ω
DAC12_xDAT = 0FFFh
RLoad = 3 kΩ,
0.3 V ≤ VO/P(DAC12) ≤ AVCC – 0.3 V
(1) Data is valid after the offset calibration of the output amplifier.
RO/P(DAC12_x)
Max
RLoad
ILoad
AVCC
DAC12
2
CLoad = 100 pF
O/P(DAC12_x)
Min
0.3
AVCC – 0.3 V
VOUT
AVCC
Figure 18. DAC12_x Output Resistance Tests
76
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