MSP430FR6889 Datasheet, PDF (60/176 Pages) Texas Instruments – Mixed-Signal Microcontrollers

MSP430FR6889, MSP430FR68891, MSP430FR6888, MSP430FR6887
MSP430FR5889, MSP430FR58891, MSP430FR5888, MSP430FR5887
SLASE32A – AUGUST 2014 – REVISED MARCH 2015
www.ti.com
Table 5-29. 12-Bit ADC, Dynamic Performance for Single-Ended Inputs With External Reference⁽¹⁾
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
SNR
ENOB
Signal-to-noise
Effective number of bits⁽²⁾
VR+ = 2.5 V, VR- = AVSS
VR+ = 2.5 V, VR- = AVSS
64
68
dB
10.2
10.7
bits
(1) See Table 5-30 and Table 5-34 electrical sections for more information on internal reference performance and refer to the application
report Designing With the MSP430FR59xx and MSP430FR58xx ADC (SLAA624) for details on optimizing ADC performance for your
application with the choice of internal versus external reference.
(2) ENOB = (SINAD – 1.76) / 6.02
Table 5-30. 12-Bit ADC, Dynamic Performance for Single-Ended Inputs With Internal Reference⁽¹⁾
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
ENOB
PARAMETER
Effective number of bits⁽²⁾
TEST CONDITIONS
VR+ = 2.5 V, VR- = AVSS
MIN
TYP
MAX UNIT
9.4
10.4
bits
(1) See Table 5-34 electrical section for more information on internal reference performance and refer to the application report Designing
With the MSP430FR59xx and MSP430FR58xx ADC (SLAA624) for details on optimizing ADC performance for your application with the
choice of internal versus external reference.
(2) ENOB = (SINAD – 1.76) / 6.02
Table 5-31. 12-Bit ADC, Dynamic Performance With 32.768-kHz Clock
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
Reduced performance with f_ADC12CLK from ACLK LFXT
ENOB Effective number of bits⁽¹⁾ 32.768 kHz,
10
VR+ = 2.5 V, VR- = AVSS
(1) ENOB = (SINAD – 1.76) / 6.02
MAX UNIT
bits
950
900
850
800
750
700
650
600
550
500
-40
-20
0
20
40
60
80
Ambient Temperature – °C
Figure 5-20. Typical Temperature Sensor Voltage
60
Specifications
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MSP430FR58891 MSP430FR5888 MSP430FR5887