Datasheet

MSP430F5172, MSP430F5152, MSP430F5132
MSP430F5171, MSP430F5151, MSP430F5131
SLAS619K –AUGUST 2010–REVISED JANUARY 2014 www.ti.com
10-Bit ADC, Power Supply and Input Range Conditions (MSP430F51x2 Devices Only)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
(1)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
AV
CC
and DV
CC
are connected together,
AV
CC
Analog supply voltage AV
SS
and DV
SS
are connected together, 1.8 3.6 V
V
(AVSS)
= V
(DVSS)
= 0 V
All ADC10_A pins: P1.0 to P1.5 and P3.6 and P3.7
V
(Ax)
Analog input voltage range
(2)
0 AV
CC
V
terminals
Operating supply current into f
ADC10CLK
= 5 MHz, ADC10ON = 1, REFON = 0, 2.2 V 60 90
AVCC terminal, REF module SHT0 = 0, SHT1 = 0, ADC10DIV = 0, µA
3 V 75 100
and reference buffer off ADC10SREF = 00
Operating supply current into f
ADC10CLK
= 5 MHz, ADC10ON = 1, REFON = 1,
AVCC terminal, REF module SHT0 = 0, SHT1 = 0, ADC10DIV = 0, 3 V 113 130 µA
on, reference buffer on ADC10SREF = 01
I
ADC10_A
Operating supply current into f
ADC10CLK
= 5 MHz, ADC10ON = 1, REFON = 0,
AVCC terminal, REF module SHT0 = 0, SHT1 = 0, ADC10DIV = 0, 3 V 105 125 µA
off, reference buffer on ADC10SREF = 10, VEREF = 2.5 V
Operating supply current into f
ADC10CLK
= 5 MHz, ADC10ON = 1, REFON = 0,
AVCC terminal, REF module SHT0 = 0, SHT1 = 0, ADC10DIV = 0, 3 V 70 95 µA
off, reference buffer off ADC10SREF = 11, VEREF = 2.5 V
Only one terminal Ax can be selected at one time
C
I
Input capacitance from the pad to the ADC10_A capacitor array 2.2 V 3.5 pF
including wiring and pad
AV
CC
> 2.0V, 0 V ≤ V
Ax
≤ AV
CC
36
R
I
Input MUX ON resistance kΩ
1.8V < AV
CC
< 2.0V, 0 V ≤ V
Ax
≤ AV
CC
96
(1) The leakage current is defined in the leakage current table with P6.x/Ax parameter.
(2) The analog input voltage range must be within the selected reference voltage range V
R+
to V
R–
for valid conversion results. The external
reference voltage requires decoupling capacitors. See
()
.
10-Bit ADC, Timing Parameters (MSP430F51x2 Devices Only)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
For specified performance of ADC10_A linearity
f
ADC10CLK
2.2 V, 3 V 0.45 5 5.5 MHz
parameters
Internal ADC10_A
f
ADC10OSC
ADC10DIV = 0, f
ADC10CLK
= f
ADC10OSC
2.2 V, 3 V 4.2 4.8 5.4 MHz
oscillator
(1)
REFON = 0, Internal oscillator, 12 ADC10CLK
cycles, 10-bit mode 2.2 V, 3 V 2.4 3.0
f
ADC10OSC
= 4 MHz to 5 MHz
t
CONVERT
Conversion time µs
External f
ADC10CLK
from ACLK, MCLK or SMCLK,
(2)
ADC10SSEL ≠ 0
Turn on settling time of
t
ADC10ON
See
(3)
100 ns
the ADC
R
S
= 1000 Ω, R
I
= 96 kΩ, C
I
= 3.5 pF
(4)
1.8 V 3 µs
t
Sample
Sampling time
R
S
= 1000 Ω, R
I
= 36 kΩ, C
I
= 3.5 pF
(4)
3 V 1 µs
(1) The ADC10OSC is sourced directly from MODOSC inside the UCS.
(2) 12 × ADC10DIV × 1/f
ADC10CLK
(3) The condition is that the error in a conversion started after t
ADC10ON
is less than ± 0.5 LSB. The reference and input signal are already
settled.
(4) Approximately eight Tau (τ) are required for an error of less than ±0.5 LSB
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