MSP430FG439 Datasheet, PDF (34/88 Pages) Texas Instruments – Mixed-Signal Microcontrollers

MSP430FG439, MSP430FG438, MSP430FG437
SLAS380D – APRIL 2004 – REVISED NOVEMBER 2014
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5.30 12-Bit DAC, Output Specifications
over recommended operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
No Load, V_eREF+ = AV_CC,
DAC12_xDAT = 0h, DAC12IR = 1,
DAC12AMPx = 7
No Load, V_eREF+ = AV_CC,
DAC12_xDAT = 0FFFh, DAC12IR = 1,
V_O
Output voltage range⁽¹⁾
(see Figure 5-24)
DAC12AMPx = 7
R_Load = 3 kΩ, V_eREF+ = AV_CC,
DAC12_xDAT = 0h, DAC12IR = 1,
DAC12AMPx = 7
R_Load = 3 kΩ, V_eREF+ = AV_CC,
DAC12_xDAT = 0FFFh, DAC12IR = 1,
DAC12AMPx = 7
C_L(DAC12)
Maximum DAC12 load
capacitance
I_L(DAC12)
Maximum DAC12 load
current
R_O/P(DAC12)
Output resistance (see
Figure 5-24)
R_Load = 3 kΩ, V_O/P(DAC12) < 0.3 V,
DAC12AMPx = 7, DAC12_xDAT = 0h
R_Load = 3 kΩ,
V_O/P(DAC12) > AV_CC – 0.3 V,
DAC12AMPx = 7, DAC12_xDAT = 0FFFh
R_Load = 3 kΩ,
0.3 V ≤ V_O/P(DAC12) ≤ AV_CC – 0.3 V
DAC12AMPx = 7
(1) Data is valid after the offset calibration of the output amplifier.
V_CC
2.2 V,
3V
2.2 V,
3V
2.2 V
3V
2.2 V,
3V
MIN TYP
0
AV_CC –
0.05
0
AV_CC –
0.13
–0.5
–1.0
150
150
1
MAX UNIT
0.005
AV_CC
V
0.1
AV_CC
100 pF
+0.5
mA
+1.0
250
250 _Ω
4
DAC12
ILoad
O/P(DAC12_x)
R _Load
AVCC
2
CLoad = 100pF
R _{O/P(DAC12_x)}
Max
Min
0.3
Figure 5-24. DAC12_x Output Resistance Tests
AVCC -0.3V
V _OUT
AVCC
34
Specifications
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