Datasheet
MSP430FR4133, MSP430FR4132, MSP430FR4131
SLAS865B –OCTOBER 2014–REVISED AUGUST 2015
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Table 5-19. ADC, 10-Bit Linearity Parameters
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
2.4 V to
Integral linearity error (10-bit mode) –2 2
3.6 V
E
I
V
DVCC
as reference LSB
2 V to
Integral linearity error (8-bit mode) –2 2
3.6 V
Differential linearity error (10-bit 2.4 V to
–1 1
mode) 3.6 V
E
D
V
DVCC
as reference LSB
2 V to
Differential linearity error (8-bit mode) –1 1
3.6 V
2.4 V to
Offset error (10-bit mode) –6.5 6.5
3.6 V
E
O
V
DVCC
as reference mV
2 V to
Offset error (8-bit mode) –6.5 6.5
3.6 V
V
DVCC
as reference –2.0 2.0 LSB
2.4 V to
Gain error (10-bit mode)
3.6 V
Internal 1.5-V reference –3.0% 3.0%
E
G
V
DVCC
as reference –2.0 2.0 LSB
2 V to
Gain error (8-bit mode)
3.6 V
Internal 1.5-V reference –3.0% 3.0%
V
DVCC
as reference –2.0 2.0 LSB
2.4 V to
Total unadjusted error (10-bit mode)
3.6 V
Internal 1.5-V reference –3.0% 3.0%
E
T
V
DVCC
as reference –2.0 2.0 LSB
2 V to
Total unadjusted error (8-bit mode)
3.6 V
Internal 1.5-V reference –3.0% 3.0%
V
SENSOR
See
(1)
ADCON = 1, INCH = 0Ch, T
A
= 0°C 3 V 1.013 mV
TC
SENSOR
See
(2)
ADCON = 1, INCH = 0Ch 3 V 3.35 mV/°C
ADCON = 1, INCH = 0Ch, Error of
conversion result ≤ 1 LSB, AM and all 3 V 30
t
SENSOR
Sample time required if channel 12 is
LPM above LPM3
µs
(sample)
selected
(3)
ADCON = 1, INCH = 0Ch, Error of
3 V 100
conversion result ≤ 1 LSB, LPM3
(1) The temperature sensor offset can vary significantly. TI recommends a single-point calibration to minimize the offset error of the built-in
temperature sensor.
(2) The device descriptor structure contains calibration values for 30°C ±3°C and 85°C ±3°C for each of the available reference voltage
levels. The sensor voltage can be computed as V
SENSE
= TC
SENSOR
× (Temperature, °C) + V
SENSOR
, where TC
SENSOR
and V
SENSOR
can
be computed from the calibration values for higher accuracy.
(3) The typical equivalent impedance of the sensor is 700 kΩ. The sample time required includes the sensor-on time t
SENSOR(on)
.
32 Specifications Copyright © 2014–2015, Texas Instruments Incorporated
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