MSP430G2955
MSP430G2855
MSP430G2755
SLAS800 –MARCH 2013
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MAX UNIT
10-Bit ADC, Power Supply and Input Range Conditions
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)(1)
PARAMETER
TEST CONDITIONS
VSS = 0 V
TA
VCC
3 V
3 V
MIN
TYP
VCC
VAx
Analog supply voltage
2.2
3.6
V
V
All Ax terminals, Analog inputs
selected in ADC10AE register
Analog input voltage(2)
ADC10 supply current(3)
0
VCC
fADC10CLK = 5.0 MHz,
ADC10ON = 1, REFON = 0,
ADC10SHT0 = 1, ADC10SHT1 = 0,
ADC10DIV = 0
IADC10
25°C
25°C
0.6
mA
mA
fADC10CLK = 5.0 MHz,
ADC10ON = 0, REF2_5V = 0,
REFON = 1, REFOUT = 0
0.25
0.25
Reference supply current,
reference buffer disabled(4)
IREF+
3 V
fADC10CLK = 5.0 MHz,
ADC10ON = 0, REF2_5V = 1,
REFON = 1, REFOUT = 0
fADC10CLK = 5.0 MHz,
Reference buffer supply
ADC10ON = 0, REFON = 1,
IREFB,0
25°C
25°C
3 V
3 V
1.1
0.5
mA
mA
current with ADC10SR = 0(4) REF2_5V = 0, REFOUT = 1,
ADC10SR = 0
fADC10CLK = 5.0 MHz,
ADC10ON = 0, REFON = 1,
Reference buffer supply
IREFB,1
current with ADC10SR = 1(4) REF2_5V = 0, REFOUT = 1,
ADC10SR = 1
Only one terminal Ax can be selected
CI
RI
Input capacitance
at one time
25°C
25°C
3 V
3 V
27
pF
Input MUX ON resistance
0 V ≤ VAx ≤ VCC
1000
Ω
(1) The leakage current is defined in the leakage current table with Px.y/Ax parameter.
(2) The analog input voltage range must be within the selected reference voltage range VR+ to VR– for valid conversion results.
(3) The internal reference supply current is not included in current consumption parameter IADC10
.
(4) The internal reference current is supplied via terminal VCC. 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.
38
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