Datasheet
MSP430F22x2
MSP430F22x4
SLAS504G –JULY 2006–REVISED AUGUST 2012
www.ti.com
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
Analog supply voltage
V
CC
V
SS
= 0 V 2.2 3.6 V
range
All Ax terminals,
Analog input voltage
V
Ax
Analog inputs selected in 0 V
CC
V
range
(2)
ADC10AE register
f
ADC10CLK
= 5 MHz, 2.2 V 0.52 1.05
ADC10ON = 1, REFON = 0,
I: -40°C to 85°C
I
ADC10
ADC10 supply current
(3)
ADC10SHT0 = 1, mA
T: -40°C to 105°C
3 V 0.6 1.2
ADC10SHT1 = 0,
ADC10DIV = 0
f
ADC10CLK
= 5 MHz,
ADC10ON = 0, REF2_5V = 0, 2.2 V, 3 V 0.25 0.4
Reference supply
REFON = 1, REFOUT = 0
I: -40°C to 85°C
I
REF+
current, reference buffer mA
T: -40°C to 105°C
f
ADC10CLK
= 5 MHz,
disabled
(4)
ADC10ON = 0, REF2_5V = 1, 3 V 0.25 0.4
REFON = 1, REFOUT = 0
f
ADC10CLK
= 5 MHz -40°C to 85°C 2.2 V, 3 V 1.1 1.4
Reference buffer supply
ADC10ON = 0, REFON = 1,
I
REFB,0
current with mA
REF2_5V = 0, REFOUT = 1,
105°C 2.2 V, 3 V 1.8
ADC10SR = 0
(4)
ADC10SR = 0
f
ADC10CLK
= 5 MHz, -40°C to 85°C 2.2 V, 3 V 0.5 0.7
Reference buffer supply
ADC10ON = 0, REFON = 1,
I
REFB,1
current with mA
REF2_5V = 0, REFOUT = 1,
105°C 2.2 V, 3 V 0.8
ADC10SR = 1
(4)
ADC10SR = 1
Only one terminal Ax selected at I: -40°C to 85°C
C
I
Input capacitance 27 pF
a time T: -40°C to 105°C
Input MUX ON I: -40°C to 85°C
R
I
0 V ≤ V
Ax
≤ V
CC
2.2 V, 3 V 2000 Ω
resistance T: -40°C to 105°C
(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 via terminal V
CC
. 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.
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