MSP430FR5994_17 Datasheet, PDF (57/168 Pages) Texas Instruments – Mixed-Signal Microcontrollers

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MSP430FR5994, MSP430FR59941, MSP430FR5992, MSP430FR5964, MSP430FR5962
SLASE54A – MARCH 2016 – REVISED OCTOBER 2016
Table 5-26 lists the dynamic performance characteristics when using an external reference.
Table 5-26. 12-Bit ADC, Dynamic Performance With External Reference
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
Resolution Number of no missing code output-code bits
12
SNR
Signal-to-noise with differential inputs
Signal-to-noise with single-ended inputs
Effective number of bits with differential
inputs ⁽¹⁾
V_R+ = 2.5 V, V_R– = AV_SS
V_R+ = 2.5 V, V_R– = AV_SS
V_R+ = 2.5 V, V_R– = AV_SS
71
70
11.4
ENOB
Effective number of bits with single-ended
inputs ⁽¹⁾
V_R+ = 2.5 V, V_R– = AV_SS
11.1
Effective number of bits with 32.768-kHz clock
(reduced performance)⁽¹⁾
Reduced performance with f_ADC12CLK from
ACLK LFXT 32.768 kHz,
V_R+ = 2.5 V, V_R– = AV_SS
10.9
(1) ENOB = (SINAD – 1.76) / 6.02
Table 5-27 lists the dynamic performance characteristics when using an internal reference.
MAX
UNIT
bits
dB
bits
Table 5-27. 12-Bit ADC, Dynamic Performance With Internal Reference
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
Resolution Number of no missing code output-code bits
12
SNR
Signal-to-noise with differential inputs
Signal-to-noise with single-ended inputs
Effective number of bits with differential
inputs ⁽¹⁾
V_R+ = 2.5 V, V_R– = AV_SS
V_R+ = 2.5 V, V_R– = AV_SS
V_R+ = 2.5 V, V_R– = AV_SS
70
69
11.4
ENOB
Effective number of bits with single-ended
inputs ⁽¹⁾
V_R+ = 2.5 V, V_R– = AV_SS
11.0
Effective number of bits with 32.768-kHz
clock (reduced performance)⁽¹⁾
Reduced performance with f_ADC12CLK
from ACLK LFXT 32.768 kHz,
V_R+ = 2.5 V, V_R– = AV_SS
10.9
(1) ENOB = (SINAD – 1.76) / 6.02
MAX UNIT
bits
dB
bits
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Specifications
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