MSP430FR573 Datasheet, PDF (64/109 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430FR573x
MSP430FR572x
SLAS639D – JULY 2011 – REVISED AUGUST 2012
10-Bit ADC, Power Supply and Input Range Conditions
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
AV_CC
V_(Ax)
I_{ADC10_A}
Analog supply voltage
Analog input voltage range
Operating supply current into
AV_CC terminal, reference
current not included
AV_CC and DV_CC are connected together,
AV_SS and DV_SS are connected together,
V_(AVSS) = V_(DVSS) = 0 V
All ADC10 pins
f_ADC10CLK = 5 MHz, ADC10ON = 1,
REFON = 0, SHT0 = 0, SHT1 = 0,
ADC10DIV = 0
C_I
Input capacitance
Only one terminal Ax can be selected at one
time from the pad to the ADC10_A capacitor
array including wiring and pad
R_I
Input MUX ON resistance
AV_CC ≥ 2 V, 0 V ≤ V_Ax ≤ AV_CC
10-Bit ADC, Timing Parameters
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
f_ADC10CLK
For specified performance of ADC10 linearity
parameters
f_ADC10OSC
Internal ADC10 oscillator
(MODOSC)
ADC10DIV = 0, f_ADC10CLK = f_ADC10OSC
t_CONVERT Conversion time
REFON = 0, Internal oscillator,
12 ADC10CLK cycles, 10-bit mode,
f_ADC10OSC = 4.5 MHz to 5.5 MHz
External f_ADC10CLK from ACLK, MCLK, or SMCLK,
ADC10SSEL ≠ 0
t_ADC10ON
Turn on settling time of
the ADC
The error in a conversion started after t_ADC10ON 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,
Approximately eight Tau (τ) are required to get an
error of less than ±0.5 LSB
(1) 12 × ADC10DIV × 1/f_ADC10CLK
10-Bit ADC, Linearity Parameters
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
E_I
Integral
linearity error
E_D
Differential
linearity error
1.4 V ≤ (V_eREF+ – V_REF–/V_eREF–)min ≤ 1.6 V
1.6 V < (V_eREF+ – V_REF–/V_eREF–)min ≤ V_AVCC
(V_eREF+ – V_REF–/V_eREF–)min ≤ (V_eREF+ – V_REF–/V_eREF–)
E_O
Offset error
(V_eREF+ – V_REF–/V_eREF–)min ≤ (V_eREF+ – V_REF–/V_eREF–)
Gain error, external
reference
(V_eREF+ – V_REF–/V_eREF–)min ≤ (V_eREF+ – V_REF–/V_eREF–)
E_G
Gain error, internal
reference ⁽¹⁾
Total unadjusted
error, external
(V_eREF+ – V_REF–/V_eREF–)min ≤ (V_eREF+ – V_REF–/V_eREF–)
reference
E_T
Total unadjusted
error, internal
reference ⁽¹⁾
(1) Error is dominated by the internal reference.
V_CC
2V
3V
2.2 V
V_CC
2 V to
3.6 V
2 V to
3.6 V
2 V to
3.6 V
2 V to
3.6 V
2V
3V
V_CC
2 V to
3.6 V
2 V to
3.6 V
2 V to
3.6 V
2 V to
3.6 V
2 V to
3.6 V
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MIN TYP MAX UNIT
2.0
3.6 V
0
AV_CC V
90 140
µA
100 160
6
8 pF
36 kΩ
MIN TYP MAX UNIT
0.45
5 5.5 MHz
4.5 4.5 5.5 MHz
2.18
2.67
µs
(1)
100 ns
1.5
µs
2.0
MIN TYP MAX UNIT
-1.4
1.4
LSB
-1.1
1.1
-1
1 LSB
-6.5
6.5 mV
-1.2
1.2 LSB
-4
4%
-2
2 LSB
-4
4%
64
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