MSP430G2744, MSP430G2544, MSP430G2444
SLAS892C – MARCH 2013 – REVISED SEPTEMBER 2014
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5.29 10-Bit ADC, Power Supply and Input Range Conditions
(1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
(1)
PARAMETER
TEST CONDITIONS
T
A
V
CC
MIN
TYP
MAX
UNIT
V
CC
Analog supply voltage range V
SS
= 0 V
2.2
3.6
V
All Ax terminals,
Analog input voltage
V
Ax
Analog inputs selected in
3 V
0
V
CC
V
range
(2)
ADC10AE register
f
ADC10CLK
= 5 MHz,
ADC10ON = 1, REFON = 0,
I
ADC10
ADC10 supply current
(3)
ADC10SHT0 = 1,
25°C
3 V
0.6
mA
ADC10SHT1 = 0,
ADC10DIV = 0
f
ADC10CLK
= 5 MHz,
ADC10ON = 0, REF2_5V = 0,
0.25
REFON = 1, REFOUT = 0
Reference supply current,
I
REF+
25°C
3 V
mA
reference buffer disabled
(4)
f
ADC10CLK
= 5 MHz,
ADC10ON = 0, REF2_5V = 1,
0.25
REFON = 1, REFOUT = 0
f
ADC10CLK
= 5 MHz
Reference buffer supply
ADC10ON = 0, REFON = 1,
I
REFB,0
current with
25°C
3 V
1.1
mA
REF2_5V = 0, REFOUT = 1,
ADC10SR = 0
(4)
ADC10SR = 0
f
ADC10CLK
= 5 MHz,
Reference buffer supply
ADC10ON = 0, REFON = 1,
I
REFB,1
current with
25°C
3 V
0.5
mA
REF2_5V = 0, REFOUT = 1,
ADC10SR = 1
(4)
ADC10SR = 1
Only one terminal Ax selected at
C
I
Input capacitance
25°C
3 V
27
pF
a time
R
I
Input MUX ON resistance
0 V
≤
V
Ax
≤
V
CC
25°C
3 V
1000
Ω
(1)
The leakage current is defined in the leakage current table with Px.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.
(3)
The internal reference supply current is not included in current consumption parameter I
ADC10
.
(4)
The internal reference current is supplied from terminal AVCC. Consumption is independent of the ADC10ON control bit, unless a
conversion is active. The REFON bit enables the built-in reference to settle before starting an A/D conversion.
32
Specifications
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