32
MSP430G2533, MSP430G2433, MSP430G2333, MSP430G2233
MSP430G2403, MSP430G2303, MSP430G2203
SLAS734G – APRIL 2011 – REVISED APRIL 2016
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MSP430G2533 MSP430G2433 MSP430G2333 MSP430G2233 MSP430G2403 MSP430G2303
MSP430G2203
Specifications
Copyright © 2011–2016, Texas Instruments Incorporated
5.30 10-Bit ADC, Built-In Voltage Reference (MSP430G2x33 Only)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX
UNIT
V
CC,REF+
Positive built-in reference
analog supply voltage range
I
VREF+
≤
1 mA, REF2_5V = 0
2.2
V
I
VREF+
≤
1 mA, REF2_5V = 1
2.9
V
REF+
Positive built-in reference
voltage
I
VREF+
≤
I
VREF+
max, REF2_5V = 0
3 V
1.41
1.5
1.59
V
I
VREF+
≤
I
VREF+
max, REF2_5V = 1
2.35
2.5
2.65
I
LD,VREF+
Maximum VREF+ load current
3 V
±1
mA
VREF+ load regulation
I
VREF+
= 500 µA ±100 µA,
Analog input voltage V
Ax
≈
0.75 V,
REF2_5V = 0
3 V
±2
LSB
I
VREF+
= 500 µA ±100 µA,
Analog input voltage V
Ax
≈
1.25 V,
REF2_5V = 1
±2
V
REF+
load regulation response
time
I
VREF+
= 100 µA
→
900 µA,
V
Ax
≈
0.5 × VREF+,
Error of conversion result
≤
1 LSB,
ADC10SR = 0
3 V
400
ns
C
VREF+
Maximum capacitance at pin
VREF+
I
VREF+
≤
±1 mA, REFON = 1, REFOUT = 1
3 V
100
pF
TC
REF+
Temperature coefficient
I
VREF+
= const with 0 mA
≤
I
VREF+
≤
1 mA
3 V
±100
ppm/
°C
t
REFON
Settling time of internal
reference voltage to 99.9%
VREF
I
VREF+
= 0.5 mA, REF2_5V = 0,
REFON = 0
→
1
3.6 V
30
µs
t
REFBURST
Settling time of reference buffer
to 99.9% VREF
I
VREF+
= 0.5 mA,
REF2_5V = 1, REFON = 1,
REFBURST = 1, ADC10SR = 0
3 V
2
µs
