Datasheet

MSP430F47x
MIXED SIGNAL MICROCONTROLLER
SLAS629A -- MARCH 2009 -- REVISED APRIL 2009
51
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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 25. Slew Rate Testing
12-bit DAC, dynamic specifications continued (T
A
=25°C unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN MAX UNIT
3
d
B
b
d
i
d
t
h
DAC12AMPx = {2, 3, 4}, DAC12SREFx = 2,
DAC12IR = 1, DAC12_xDAT = 800h
2.2 V/3 V 40
BW
--3dB
3-dB bandwidth,
V
DC
=1.5V,V
AC
=0.1V
PP
(
s
e
e
F
i
g
u
r
e
2
6
)
DAC12AMPx = {5, 6}, DAC12SREFx = 2, DAC12IR = 1,
DAC12_xDAT = 800h
2.2 V/3 V 180
kHz
(see Figure 26)
DAC12AMPx = 7, DAC12SREFx = 2, DAC12IR = 1,
DAC12_xDAT = 800h
2.2 V/3 V 550
NOTES: 1. R
LOAD
=3kΩ,C
LOAD
= 100 pF
Ve
REF+
AC
DC
R
Load
AV
CC
C
Load
= 100pF
2
I
Load
DAC12_x
DACx
=3kΩ
Figure 26. Test Conditions for 3-dB Bandwidth Specification