CC430F6147_15 Datasheet, PDF (64/118 Pages) Texas Instruments – MSP430 SoC With RF Core

CC430F614x
CC430F514x
CC430F512x
ECCN 5E002 TSPA - Technology / Software Publicly Available
SLAS555A – NOVEMBER 2012 – REVISED FEBRUARY 2013
REF, Built-In Reference
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)⁽¹⁾
VEREF+
PARAMETER
TEST CONDITIONS
Positive built-in reference voltage
REFVSEL = {2} for 2.5 V,
REFON = REFOUT = 1
V_CC
MIN TYP
3V
2.5
VEREF+
Positive built-in reference voltage
REFVSEL = {1} for 2.0 V,
REFON = REFOUT = 1
3V
2.01
VEREF+
Positive built-in reference voltage
REFVSEL = {0} for 1.5 V,
REFON = REFOUT = 1
2.2 V,
3V
1.505
AV_CC(min)
AVCC minimum voltage, Positive
built-in reference active
REFVSEL = {0} for 1.5 V
1.8
AV_CC(min)
AVCC minimum voltage, Positive
built-in reference active
REFVSEL = {1} for 2.0 V
2.3
AV_CC(min)
AVCC minimum voltage, Positive
built-in reference active
REFVSEL = {2} for 2.5 V
2.8
f_ADC10CLK = 5 MHz,
REFON = 1, REFBURST = 0,
REFVSEL = {0} for 1.5 V
3V
15.5
I_REF+
Operating supply current into
AVCC terminal⁽²⁾
f_ADC10CLK = 5 MHz,
REFON = 1, REFBURST = 0,
REFVSEL = {1} for 2.0 V
3V
18
f_ADC10CLK = 5 MHz,
REFON = 1, REFBURST = 0,
REFVSEL = {2} for 2.5 V
3V
21
I_REF+,REFO
Operating supply current into
AVCC terminal with REF output
UT
buffer enabled
REFON = 1, REFOUT = 1,
REFBURST = 0
3V
0.9
I_L(VREF+)
Load-current regulation, VREF+
terminal ⁽³⁾
REFVSEL = {0, 1, 2},
I_Load,VREF+ = +10 µA or -1000 µA,
AV_CC = AV_{CC (min)} for each reference level,
REFON = REFOUT = 1
C_VREF+
TC_REF+
Capacitance at VREF+ terminals REFON = REFOUT = 1
Temperature coefficient of built-in
reference ⁽⁴⁾
REFVSEL = {0, 1, 2}, REFON = 1
20
30
I_SENSOR
Operating supply current into
AVCC terminal⁽⁵⁾
REFON = 0, INCH = 0Ah,
ADC10ON = NA, T_A = 30°C
2.2 V
150
3V
150
V_SENSOR
See ⁽⁶⁾
2.2 V
765
ADC10ON = 1, INCH = 0Ah, T_A = 30°C
3V
765
V_MID
AVCC divider at channel 11
ADC10ON = 1, INCH = 0Bh,
V_MID is approximately 0.5 × V_AVCC
2.2 V 1.06 1.1
3V
1.46
1.5
t_SENSOR
(sample)
Sample time required if
channel 10 is selected⁽⁷⁾
ADC10ON = 1, INCH = 0Ah,
Error of conversion result ≤ 1 LSB
30
t_VMID
(sample)
Sample time required if
channel 11 is selected⁽⁸⁾
ADC10ON = 1, INCH = 0Bh,
Error of conversion result ≤ 1 LSB
1
AV_CC = AV_{CC (min)} - AV_CC(max),
PSRR_DC Power supply rejection ratio (dc) T_A = 25°C,
120
REFVSEL = {0, 1, 2}, REFON = 1
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MAX UNIT
±1.5% V
±1.5% V
±1.5% V
V
V
V
19 µA
24 µA
30 µA
1.7 mA
2500
µV/
mA
100 pF
50
ppm/
°C
180
µA
190
mV
1.14
V
1.54
µs
µs
300 µV/V
(1) The leakage current is defined in the leakage current table with P2.x/Ax parameter.
(2) The internal reference current is supplied via terminal AVCC. Consumption is independent of the ADC10ON control bit, unless a
conversion is active. The REFON bit enables to settle the built-in reference before starting an A/D conversion.
(3) Contribution only due to the reference and buffer including package. This does not include resistance due to PCB trace and other
factors. Positive load currents are flowing into the device.
(4) Calculated using the box method: (MAX(-40 to 85°C) - MIN(-40 to 85°C)) / MIN(-40 to 85°C)/(85°C - (-40°C)).
(5) The sensor current I_SENSOR is consumed if (ADC10ON = 1 and REFON = 1) or (ADC10ON = 1 and INCH = 0Ah and sample signal is
high). When REFON = 1, I_SENSOR is already included in I_REF+.
(6) The temperature sensor offset can be as much as ±20°C. A single-point calibration is recommended to minimize the offset error of the
built-in temperature sensor.
(7) The typical equivalent impedance of the sensor is 51 kΩ. The sample time required includes the sensor-on time t_SENSOR(on).
(8) The on-time t_VMID(on) is included in the sampling time t_VMID(sample); no additional on time is needed.
64
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