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MSP430F2619S-HT Datasheet, PDF (69/90 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER
◁
MSP430F2619S-HT
www.ti.com
SLAS697B – MARCH 2010 – REVISED JUNE 2011
12-Bit DAC Dynamic Specifications, VREF = VCC, DAC12IR = 1 – Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
tON
SR
TEST CONDITIONS
DAC12_xDAT = 800h,
ErrorV(O) < ±0.5 LSB(1)
(See Figure 48)
DAC12AMPx = 0 → {2, 3, 4}
DAC12AMPx = 0 → {5, 6}
DAC12AMPx = 0 → 7
VCC
2.2 V/3 V
MIN TYP MAX UNIT
60 120
15 30 μs
6 12
tS(FS)
Settling time, full scale
DAC12_xDAT =
80h → F7Fh → 80h
DAC12AMPx = 2
DAC12AMPx = 3, 5
DAC12AMPx = 4, 6, 7
2.2 V/3 V
100 200
40 80 μs
15 30
tS(C-C)
Settling time, code to
code
DAC12_xDAT =
3F8h → 408h → 3F8h
DAC12AMPx = 2
DAC12AMPx = 3, 5
DAC12AMPx = 4, 6, 7
2.2 V/3 V
5
2
μs
1
SR
Slew rate(2)
DAC12_xDAT =
80h → F7Fh → 80h
DAC12AMPx = 2
DAC12AMPx = 3, 5
DAC12AMPx = 4, 6, 7
0.05 0.12
2.2 V/3 V 0.35 0.7
1.5 2.7
V/μs
Glitch energy, full scale
DAC12_xDAT =
80h → F7Fh → 80h
DAC12AMPx = 2
DAC12AMPx = 3, 5
DAC12AMPx = 4, 6, 7
2.2 V/3 V
600
150
nV-s
30
3-dB bandwidth,
DAC12AMPx = {2, 3, 4}, DAC12SREFx = 2,
DAC12IR = 1, DAC12_xDAT = 800h
40
BW-3dB
VDC = 1.5 V,
VAC = 0.1 VPP
DAC12AMPx = {5, 6}, DAC12SREFx = 2,
DAC12IR = 1, DAC12_xDAT = 800h
2.2 V/3 V 180
kHz
(See Figure 50)
DAC12AMPx = 7, DAC12SREFx = 2,
DAC12IR = 1, DAC12_xDAT = 800h
550
Channel-to-channel
crosstalk (3)
(See Figure 51)
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
–80
dB
–80
(1) RLoad and CLoad are connected to AVSS (not AVCC/2) in Figure 48.
(2) Slew rate applies to output voltage steps ≥ 200 mV.
(3) RLOAD = 3 kΩ, CLOAD = 100 pF
DAC Output
RLoad = 3 k W
ILoad
AV CC
2
R O/P(DAC12.x)
CLoad = 100pF
V OUT
Conversion 1
Glitch
Energy
Conversion 2
+/- 1/2 LSB
Conversion 3
+/- 1/2 LSB
tsettleLH
Figure 48. Settling Time and Glitch Energy Testing
tsettleHL
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