MSP432P401R Datasheet, PDF (48/157 Pages) Texas Instruments – Mixed-Signal Microcontrollers

MSP432P401R, MSP432P401M
SLAS826B – MARCH 2015 – REVISED FEBRUARY 2016
www.ti.com
Table 5-42. 14-Bit ADC, External Reference
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
V_eREF+
Positive external reference voltage
input
V_eREF+ > V_eREF- ⁽¹⁾
1.45
AV_CC
V
V_eREF-
Negative external reference voltage
input
V_eREF+ > V_eREF- ⁽²⁾
0
AV_CC –
1.45
V
(V_eREF+ -
V_eREF-)
Differential external reference
voltage input
I_VeREF+
I_VeREF-
Static input current single ended
input mode
V_eREF+ > V_eREF- ⁽³⁾
1.45 V ≤ V_eREF+≤ V_AVCC, V_eREF- = 0 V,
f_ADC14CLK = 25 MHz, ADC14SHTx = 1h,
ADC14DIF = 0, Conversion rate 1 Msps
1.45 V ≤ V_eREF+≤ V_AVCC, V_eREF- = 0 V,
f_ADC14CLK = 5 MHz, ADC14SHTx = 1h,
ADC14DIF = 0, Conversion rate 200 ksps
1.45
–45
–9
AV_CC
V
45 uA
9 µA
1.45 V ≤ V_eREF+≤ V_AVCC, V_eREF- = 0 V,
f_ADC14CLK = 25 MHz, ADC14SHTx = 1h,
–90
ADC14DIF = 1, Conversion rate 1Msps
I_VeREF+
I_VeREF-
Static input current differential input
mode
1.45 V ≤ V_eREF+≤ V_AVCC, V_eREF- = 0 V
f_ADC14CLK = 5 MHz, ADC14SHTx = 1h,
ADC14DIF = 1
–18
Conversion rate 200ksps
90 uA
18 uA
I_VeREF+
Peak input current single ended
input mode
0 V ≤ V_eREF+ ≤ V_AVCC, ADC14DIF = 0
TBD mA
I_VeREF+
C_VeREF±
PSRR_DC
PSRR_AC
Peak input current differential input
mode
Capacitance at VeREF± terminal
Power supply rejection ratio (DC)
Power supply rejection ratio (AC)
0 V ≤ V_eREF+ ≤ V_AVCC, ADC14DIF = 1
AV_CC = AV_{CC (min)} – AV_CC(max)
T_A = 25°C
dAV_CC = 0.1V at 1 kHz
(4)₅
TBD
TBD mA
µF
TBD µV/V
mV/V
(1) The accuracy limits the minimum positive external reference voltage. Lower reference voltage levels down to 1.2 V may be applied with
reduced accuracy requirements for DNL, INL and SNR at 1 Msps or for ≤500-ksps specified accuracy can still be achieved.
(2) The accuracy limits the maximum negative external reference voltage. For 1-Msps, higher reference voltage levels up to AVCC – 1.2 V
may be applied with reduced speed and accuracy, or for ≤500 ksps, specified accuracy can still be achieved.
(3) The accuracy limits minimum external differential reference voltage. Lower differential reference voltage levels may be applied with
reduced accuracy requirements.
(4) Two decoupling capacitors, 5 µF and 50 nF, should be connected to VeREF to decouple the dynamic current required for an external
reference source if it is used for the ADC14. See also the MSP432P4xx Family Technical Reference Manual (SLAU356).
48
Specifications
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