MSP430G2X52 Datasheet, PDF (32/58 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2x52
MSP430G2x12
SLAS722B – DECEMBER 2010 – REVISED MARCH 2011
www.ti.com
10-Bit ADC, Power Supply and Input Range Conditions (MSP430G2x52 Only)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)⁽¹⁾
PARAMETER
TEST CONDITIONS
V_CC
Analog supply voltage
V_SS = 0 V
V_Ax
Analog input voltage⁽²⁾
All Ax terminals, Analog inputs
selected in ADC10AE register
T_A
V_CC
MIN TYP MAX UNIT
2.2
3.6 V
3V
0
V_CC V
f_ADC10CLK = 5.0 MHz,
I_ADC10
ADC10 supply current⁽³⁾
ADC10ON = 1, REFON = 0,
ADC10SHT0 = 1, ADC10SHT1 = 0,
25°C
3V
ADC10DIV = 0
0.6
mA
I_REF+
Reference supply current,
reference buffer disabled⁽⁴⁾
f_ADC10CLK = 5.0 MHz,
ADC10ON = 0, REF2_5V = 0,
REFON = 1, REFOUT = 0
f_ADC10CLK = 5.0 MHz,
ADC10ON = 0, REF2_5V = 1,
REFON = 1, REFOUT = 0
25°C
3V
0.25
mA
0.25
I_REFB,0
Reference buffer supply
current with ADC10SR = 0⁽⁴⁾
f_ADC10CLK = 5.0 MHz,
ADC10ON = 0, REFON = 1,
REF2_5V = 0, REFOUT = 1,
ADC10SR = 0
25°C
3V
1.1
mA
I_REFB,1
Reference buffer supply
current with ADC10SR = 1⁽⁴⁾
f_ADC10CLK = 5.0 MHz,
ADC10ON = 0, REFON = 1,
REF2_5V = 0, REFOUT = 1,
ADC10SR = 1
25°C
3V
0.5
mA
C_I
Input capacitance
Only one terminal Ax can be selected
at one time
25°C
3V
27 pF
R_I
Input MUX ON resistance
0 V ≤ V_Ax ≤ V_CC
25°C
3V
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 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.
32
Submit Documentation Feedback
Copyright © 2010–2011, Texas Instruments Incorporated