MSP430G2332-EP Datasheet, PDF (33/55 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2332-EP
www.ti.com
SLAS885A – AUGUST 2012 – REVISED OCTOBER 2012
10-Bit ADC, Built-In Voltage Reference
over recommended ranges of supply voltage and up to operating free-air temperature, T_A = 105°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V_CC
MIN TYP MAX UNIT
V_CC,REF+
Positive built-in reference ^IVREF+ ^{≤ 1 mA, REF2_5V = 0}
analog supply voltage range _{IVREF+ ≤ 1 mA, REF2_5V = 1}
2.2
V
3
V_REF+
Positive built-in reference
voltage
I_VREF+ ≤ I_VREF+max, REF2_5V = 0
I_VREF+ ≤ I_VREF+max, REF2_5V = 1
1.37 1.5 1.61
3V
V
2.29 2.5 2.7
I_LD,VREF+
Maximum VREF+ load
current ⁽¹⁾
3V
±1 mA
I_VREF+ = 500 µA ± 100 µA,
Analog input voltage V_Ax ≈ 0.75 V,
VREF+ load regulation⁽¹⁾
REF2_5V = 0
3V
I_VREF+ = 500 µA ± 100 µA,
Analog input voltage V_Ax ≈ 1.25 V,
REF2_5V = 1
±2
LSB
±2
I_VREF+ = 100 µA→900 µA,
V_REF+ load regulation
response time
V_Ax ≈ 0.5 × VREF+,
Error of conversion result ≤ 1 LSB,
3V
ADC10SR = 0
400 ns
C_VREF+
Maximum capacitance at
pin VREF+⁽¹⁾
I_VREF+ ≤ ±1 mA, REFON = 1, REFOUT = 1
3V
100 pF
TC_REF+
Temperature coefficient
I_VREF+ = const with 0 mA ≤ I_VREF+ ≤ 1 mA
3V
±170
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⁽¹⁾
I_VREF+ = 0.5 mA,
REF2_5V = 1, REFON = 1,
REFBURST = 1, ADC10SR = 0
3V
2 µs
(1) Minimum and maximum parameters are characterized up to T_A = 105°C, unless otherwise noted.
Copyright © 2012, Texas Instruments Incorporated
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