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MSP430X241X Datasheet, PDF (73/98 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER
MSP430x241x, MSP430x261x
MIXED SIGNAL MICROCONTROLLER
SLAS541A -- JUNE 2007 -- REVISED OCTOBER 2007
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
VOUT
Conversion 1
Conversion 2 Conversion 3
90%
90%
10%
10%
tSRLH
tSRHL
Figure 46. Slew Rate Testing
12-bit DAC, dynamic specifications (continued) (TA = 25°C, unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
BW--3dB
3-dB bandwidth,
VDC = 1.5V, VAC = 0.1 VPP
(see Figure 47)
DAC12AMPx = {2, 3, 4}, DAC12SREFx = 2,
DAC12IR = 1, DAC12_xDAT = 800h
DAC12AMPx = {5, 6}, DAC12SREFx = 2,
DAC12IR = 1, DAC12_xDAT = 800h
DAC12AMPx = 7, DAC12SREFx = 2,
DAC12IR = 1, DAC12_xDAT = 800h
40
2.2 V/3 V 180
550
Channel-to-channel crosstalk
(see Note 1 and Figure 48)
NOTE 1: RLOAD = 3 kΩ, CLOAD = 100 pF
DAC12_0DAT = 800h, No load,
DAC12_1DAT = 80h<-->F7Fh, RLoad = 3 kΩ,
fDAC12_1OUT = 10 kHz, Duty cycle = 50%
DAC12_0DAT = 80h<-->F7Fh, RLoad = 3 kΩ,
DAC12_1DAT = 800h, No load,
fDAC12_0OUT = 10 kHz, Duty cycle = 50%
2.2 V/3 V
VeREF+
AC
DC
DAC12_x
RLoad = 3 kΩ
ILoad
DACx
AV CC
2
CLoad= 100pF
TYP MAX UNIT
kHz
--80
dB
--80
VREF+
e
Figure 47. Test Conditions for 3-dB Bandwidth Specification
DAC12_0
DAC12_1
RLoad
ILoad
DAC0
CLoad= 100pF
AV CC
2
RLoad
ILoad
DAC1
CLoad= 100pF
AV CC
2
DAC12_xDAT 080h
V OUT
V DAC12_yOUT
V DAC12_xOUT
Figure 48. Crosstalk Test Conditions
7F7h
080h
fToggle
7F7h
080h
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