Datasheet

MSP430FG43x
MIXED SIGNAL MICROCONTROLLER
SLAS380C − APRIL 2004 − REVISED MARCH 2011
43
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted)
Conversion 1 Conversion 2
V
OUT
Conversion 3
10%
t
SRLH
t
SRHL
90%
10%
90%
Figure 26. Slew Rate Testing
12-bit DAC, dynamic specifications continued (T
A
= 25°C unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
3 dB b d idth
DAC12AMPx = {2, 3, 4}, DAC12SREFx = 2,
DAC12IR = 1, DAC12_xDAT = 800h
2.2V/3V 40
BW
−3dB
3-dB bandwidth,
V
DC
=1.5V, V
AC
=0.1V
PP
(see Figure 27)
DAC12AMPx = {5, 6}, DAC12SREFx = 2,
DAC12IR = 1, DAC12_xDAT = 800h
2.2V/3V 180
kHz
(see Figure 27)
DAC12AMPx = 7, DAC12SREFx = 2,
DAC12IR = 1, DAC12_xDAT = 800h
2.2V/3V 550
DAC12_0DAT = 800h, No Load,
DAC12_1DAT = 80h<−>F7Fh, R
Load
= 3kΩ
f
DAC12_1OUT
= 10kHz @ 50/50 duty cycle
2.2V/3V −80
dB
Channel-to-channel crosstalk
(see Note 1 and Figure 28)
DAC12_0DAT = 80h<−>F7Fh, R
Load
= 3kΩ,
DAC12_1DAT = 800h, No Load
f
DAC12_0OUT
= 10kHz @ 50/50 duty cycle
2.2V/3V −80
dB
NOTES: 1. R
LOAD
= 3 kΩ, C
LOAD
= 100 pF
Ve
REF+
AC
DC
R
Load
AV
CC
C
Load
= 100pF
2
I
Load
DAC12_x
DACx
= 3 kΩ
Figure 27. Test Conditions for 3-dB Bandwidth Specification
DAC12_xDAT 080h
V
OUT
f
Toggle
7F7h
V
DAC12_yOUT
080h 7F7h 080h
V
DAC12_xOUT
e
REF+
R
Load
AV
CC
C
Load
= 100pF
2
I
Load
DAC12_1
R
Load
AV
CC
C
Load
= 100pF
2
I
Load
DAC12_0
DAC0
DAC1
V
Figure 28. Crosstalk Test Conditions