MSP430F4796IPZ Datasheet, PDF (49/89 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F47x
MIXED SIGNAL MICROCONTROLLER
SLAS629A -- MARCH 2009 -- REVISED APRIL 2009
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
12-bit DAC, output specifications
PARAMETER
TEST CONDITIONS
No Load, V_{REF, DAC12} = AV_CC,
DAC12_xDAT = 0h, DAC12IR = 1,
DAC12AMPx = 7
No Load, V_{REF, DAC12} = AV_CC,
Output voltage
DAC12_xDAT = 0FFFh, DAC12IR = 1,
range
DAC12AMPx = 7
V_O
(see Note 1,
R_Load = 3 kΩ, V_{REF, DAC12} = AV_CC,
Figure 23)
DAC12_xDAT = 0h, DAC12IR = 1,
DAC12AMPx = 7
R_Load = 3 kΩ, V_{REF, DAC12} = AV_CC,
DAC12_xDAT = 0FFFh, DAC12IR = 1,
DAC12AMPx = 7
C_L(DAC12)
Max DAC12 load
capacitance
I_L(DAC12)
Max DAC12 load
current
R_Load = 3 kΩ, V_O/P(DAC12) < 0.3 V,
DAC12AMPx = 2, DAC12_xDAT = 0h
Output resistance
R_O/P(DAC12)
(see Figure 23)
R_Load = 3 kΩ,
V_O/P(DAC12) > AV_CC -- 0.3 V,
DAC12_xDAT = 0FFFh
R_Load = 3 kΩ,
0.3 V ≤ V_O/P(DAC12) ≤ AV_CC -- 0.3 V
NOTES: 1. Data is valid after the offset calibration of the output amplifier.
V_CC
MIN
2.2 V/3 V
0
2.2 V/3 V AV_CC--0.05
2.2 V/3 V
0
2.2 V/3 V AV_CC--0.13
2.2 V/3 V
2.2 V
--0.5
3V
--1.0
2.2 V/3 V
2.2 V/3 V
2.2 V/3 V
DAC12
ILoad
RLoad
AV _CC
2
RO/P(DAC12_x)
Max
O/P(DAC12_x) ^{CLoad= 100pF}
Min
0.3
Figure 23. DAC12_x Output Resistance Tests
TYP
MAX UNIT
0.005
AV_CC
V
0.1
AV_CC
100 pF
+0.5
mA
+1.0
150
250
150
250 Ω
1
4
AVCC--0.3V _VOUT
AV _CC
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
49