MSP430X22X2 Datasheet, PDF (46/87 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x22x2, MSP430x22x4
MIXED SIGNAL MICROCONTROLLER
SLAS504B − JULY 2006 − REVISED JULY 2007
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
10-bit ADC, power supply and input range conditions (see Note 1)
PARAMETER
TEST CONDITIONS
V_CC
Analog supply voltage
range
V_SS = 0 V
T_A
VCC
MIN TYP MAX UNIT
2.2
3.6 V
V_Ax
Analog input voltage range
(see Note 2)
All Ax terminals.
Analog inputs selected in
ADC10AE register
0
V_CC V
I_ADC10
I_REF+
ADC10 supply current
(see Note 3)
Reference supply current,
reference buffer disabled
(see Note 4)
f_ADC10CLK = 5.0 MHz
ADC10ON = 1, REFON = 0,
ADC10SHT0 = 1,
ADC10SHT1 = 0,
ADC10DIV = 0
I: -40−85°C
T: -40−105°C
f_ADC10CLK = 5.0 MHz,
ADC10ON = 0, REF2_5V = 0,
REFON = 1, REFOUT = 0
I: -40−85°C
T: -40−105°C
f_ADC10CLK = 5.0 MHz,
ADC10ON = 0, REF2_5V = 1,
REFON = 1, REFOUT = 0
I: -40−85°C
T: -40−105°C
2.2 V
3V
2.2 V/3 V
3V
0.52 1.05
mA
0.6 1.2
0.25 0.4 mA
I_REFB,0
Reference buffer supply
current with ADC10SR = 0
(see Note 4)
f_ADC10CLK = 5.0 MHz,
ADC10ON = 0,
REFON = 1, REF2_5V = 0,
REFOUT = 1,
ADC10SR=0
-40−85°C 2.2 V/3 V
105°C
2.2 V/3 V
1.1 1.4
mA
1.8
I_REFB,1
C_I
Reference buffer supply
current with ADC10SR = 1
(see Note 4)
Input capacitance
f_ADC10CLK = 5.0 MHz,
ADC10ON = 0,
REFON = 1,
REF2_5V = 0,
REFOUT = 1,
ADC10SR=1
-40−85°C
105°C
Only one terminal Ax selected I: -40−85°C
at a time
T: -40−105°C
2.2 V/3 V
2.2 V/3 V
0.5 0.7
mA
0.8
27 pF
R_I
Input MUX ON resistance 0V ≤ V_Ax ≤ V_CC
I: -40−85°C
T: -40−105°C
2.2 V/3 V
2000 Ω
NOTES: 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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