MSP430F5338, MSP430F5336, MSP430F5335, MSP430F5333
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SLAS721D – AUGUST 2010 – REVISED DECEMBER 2015
5.42 12-Bit DAC, Supply Specifications
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX
UNIT
AV
CC
Analog supply voltage
AV
CC
= DV
CC
, AV
SS
= DV
SS
= 0 V
2.20
3.60
V
DAC12AMPx = 2, DAC12IR = 0,
DAC12OG = 1,
3 V
65
110
DAC12_xDAT = 0800h,
VeREF+ = VREF+ = 1.5 V
DAC12AMPx = 2, DAC12IR = 1,
DAC12_xDAT = 0800h,
125
165
VeREF+ = VREF+ = AV
CC
I
DD
Supply current, single DAC channel
(1) (2)
µA
DAC12AMPx = 5, DAC12IR = 1,
DAC12_xDAT = 0800h,
2.2 V, 3 V
250
350
VeREF+ = VREF+ = AV
CC
DAC12AMPx = 7, DAC12IR = 1,
DAC12_xDAT = 0800h,
750
1100
VeREF+ = VREF+ = AV
CC
DAC12_xDAT = 800h,
2.2 V
70
VeREF+ = 1.5 V,
Δ
AV
CC
= 100 mV
PSRR
Power supply rejection ratio
(3) (4)
dB
DAC12_xDAT = 800h,
VeREF+ = 1.5 V or 2.5 V,
3 V
70
Δ
AV
CC
= 100 mV
(1)
No load at the output pin, DAC12_0 or DAC12_1, assuming that the control bits for the shared pins are set properly.
(2)
Current into reference terminals not included. If DAC12IR = 1 current flows through the input divider; see Reference Input specifications.
(3)
PSRR = 20 log (
Δ
AV
CC
/
Δ
V
DAC12_xOUT
)
(4)
The internal reference is not used.
5.43 12-Bit DAC, Linearity Specifications
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see
Figure 5-17
)
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX
UNIT
Resolution
12-bit monotonic
12
bits
VeREF+ = 1.5 V, DAC12AMPx = 7, DAC12IR = 1
2.2 V
±2
±4
(2)
Integral
INL
LSB
nonlinearity
(1)
VeREF+ = 2.5 V, DAC12AMPx = 7, DAC12IR = 1
3 V
±2
±4
VeREF+ = 1.5 V, DAC12AMPx = 7, DAC12IR = 1
2.2 V
±0.4
±1
(2)
Differential
DNL
LSB
nonlinearity
(1)
VeREF+ = 2.5 V, DAC12AMPx = 7, DAC12IR = 1
3 V
±0.4
±1
VeREF+ = 1.5 V,
DAC12AMPx = 7,
2.2 V
±21
(2)
DAC12IR = 1
Without calibration
(1) (3)
VeREF+ = 2.5 V,
DAC12AMPx = 7,
3 V
±21
DAC12IR = 1
E
O
Offset voltage
mV
VeREF+ = 1.5 V,
DAC12AMPx = 7,
2.2 V
±1.5
(2)
DAC12IR = 1
With calibration
(1) (3)
VeREF+ = 2.5 V,
DAC12AMPx = 7,
3 V
±1.5
DAC12IR = 1
Offset error
d
E(O)
/d
T
temperature
With calibration
2.2 V, 3 V
±10
µV/°C
coefficient
(1)
VeREF+ = 1.5 V
2.2 V
±2.5
E
G
Gain error
%FSR
VeREF+ = 2.5 V
3 V
±2.5
(1)
Parameters calculated from the best-fit curve from 0x0F to 0xFFF. The best-fit curve method is used to deliver coefficients "a" and "b" of
the first-order equation: y = a + bx. V
DAC12_xOUT
= E
O
+ (1 + E
G
) × (VeREF+ / 4095) × DAC12_xDAT, DAC12IR = 1.
(2)
This parameter is not production tested.
(3)
The offset calibration works on the output operational amplifier. Offset calibration is triggered by setting the DAC12CALON bit.
Copyright © 2010–2015, Texas Instruments Incorporated
Specifications
41
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