MSP430FR2033 Datasheet, PDF (29/89 Pages) Texas Instruments – Mixed-Signal Microcontrollers

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MSP430FR2033, MSP430FR2032
SLASE45B – OCTOBER 2014 – REVISED AUGUST 2015
5.12.7 ADC
Table 5-17. ADC, Power Supply and Input Range Conditions
over operating free-air temperature range (unless otherwise noted)
DV_CC
V_(Ax)
I_ADC
PARAMETER
ADC supply voltage
Analog input voltage range
Operating supply current into
DVCC terminal, reference
current not included, repeat-
single-channel mode
TEST CONDITIONS
All ADC pins
f_ADCCLK = 5 MHz, ADCON = 1,
REFON = 0, SHT0 = 0, SHT1 = 0,
ADCDIV = 0, ADCCONSEQx = 10b
V_CC
MIN
2.0
0
2V
3V
C_I
Input capacitance
Only one terminal Ax can be selected at one
time from the pad to the ADC capacitor array,
including wiring and pad
2.2 V
R_I
Input MUX ON resistance
DV_CC = 2 V, 0 V = V_Ax = DV_CC
TYP
185
207
MAX
3.6
DV_CC
UNIT
V
V
µA
1.6 2.0 pF
2 kΩ
Table 5-18. ADC, 10-Bit Timing Parameters
over operating free-air temperature range (unless otherwise noted)
f_ADCCLK
PARAMETER
TEST CONDITIONS
For specified performance of ADC linearity
parameters
V_CC
2 V to
3.6 V
f_ADCOSC
Internal ADC oscillator
(MODOSC)
ADCDIV = 0, f_ADCCLK = f_ADCOSC
2 V to
3.6 V
t_CONVERT Conversion time
REFON = 0, Internal oscillator,
10 ADCCLK cycles, 10-bit mode,
f_ADCOSC = 4.5 MHz to 5.5 MHz
External f_ADCCLK from ACLK, MCLK, or SMCLK,
ADCSSEL ≠ 0
2 V to
3.6 V
2 V to
3.6 V
t_ADCON
Turnon settling time of
the ADC
The error in a conversion started after t_ADCON is less
than ±0.5 LSB,
Reference and input signal already settled
t_Sample
Sampling time
R_S = 1000 Ω, R_I = 36000 Ω, C_I = 3.5 pF,
2V
Approximately eight Tau (t) are required for an error
of less than ±0.5 LSB
3V
(1) 12 × ADCDIV × 1/f_ADCCLK
MIN TYP MAX UNIT
0.45
5 5.5 MHz
4.5 5.0 5.5 MHz
2.18
2.67
µs
(1)
100 ns
1.5
µs
2.0
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Specifications
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