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参数资料
| 型号： | MSP430F5633IPZ |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP100 |
| 封装： | GREEN, PLASTIC, LQFP-100 |
| 文件页数： | 59/101页 |
| 文件大小： | 1073K |
| 代理商： | MSP430F5633IPZ |
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PRODUCTPREVIEW
MSP430F563x
SLAS650A – JUNE 2010 – REVISED JULY 2010
www.ti.com
REF, Built-In Reference
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
(1)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
REFVSEL = {2} for 2.5 V
REFON = REFOUT = 1
3 V
2.5
±1%
IVREF+ = 0 A
REFVSEL = {1} for 2 V
Positive built-in reference
VREF+
REFON = REFOUT = 1
3 V
2.0
±1%
V
voltage output
IVREF+ = 0 A
REFVSEL = {0} for 1.5 V
REFON = REFOUT = 1
2.2 V / 3 V
1.5
±1%
IVREF+ = 0 A
REFVSEL = {0} for 1.5 V
2.2
AVCC minimum voltage,
AVCC(min)
Positive built-in reference
REFVSEL = {1} for 2 V
2.3
V
active
REFVSEL = {2} for 2.5 V
2.8
fADC12CLK = 5 MHz,
3 V
TBD
REFON = 1, REFOUT = 0, REFBURST = 0
Operating supply current into
IREF+
A
AVCC terminal
(2) (3)
fADC12CLK = 5 MHz,
3 V
TBD
REFON = 1, REFOUT = 1, REFBURST = 0
REFVSEL = {0, 1, 2}
Load-current regulation,
IVREF+ = +10 A / -1000 A
IL(VREF+)
TBD V/mA
VREF+ terminal
(4)
AVCC = AVCC(min) for each reference level.
REFVSEL = {0, 1, 2}, REFON = REFOUT = 1
Capacitance at VREF+
REFON = REFOUT = 1, (5)
CVREF+
2.2 V/3 V
20
100
pF
terminal
0 mA
≤ IVREF+ ≤ IVREF+(max)
IVREF+ is a constant in the range of
Temperature coefficient of
ppm/
TCREF+
0 mA
≤ IVREF+ ≤ –1 mA
2.2 V/3 V
TBD
built-in reference(6)
°C
REROUT = 0
AVCC = AVCC(min) - AVCC(max)
Power Supply Rejection Ratio TA = 25°C
PSRR_DC
TBD
V/V
(DC)
REFVSEL = {0, 1, 2}, REFON = 1, REFOUT =
0 or 1
AVCC = AVCC(min) - AVCC(max)
Power Supply Rejection Ratio TA = 25°C
PSRR_AC
TBD
mV/V
(AC)
REFVSEL = {0, 1, 2}, REFON = 1, REFOUT =
0 or 1
AVCC = AVCC(min) - AVCC(max)
REFVSEL = {0, 1, 2}, REFOUT = 0, REFON =
75
0
→ 1
Settling time of reference
tSETTLE
s
AVCC = AVCC(min) - AVCC(max)
voltage(7)
CVREF = CVREF(max)
75
REFVSEL = {0, 1, 2}, REFOUT = 1, REFON =
0
→ 1
(1)
The reference is supplied to the ADC by the REF module and is buffered locally inside the ADC. The ADC uses two internal buffers, one
smaller and one larger for driving the VREF+ terminal. When REFOUT = 1, the reference is available at the VREF+ terminal, as well as,
used as the reference for the conversion and utilizes the larger buffer. When REFOUT = 0, the reference is only used as the reference
for the conversion and utilizes the smaller buffer.
(2)
The internal reference current is supplied via terminal AVCC. Consumption is independent of the ADC12ON control bit, unless a
conversion is active. REFOUT = 0 represents the current contribution of the smaller buffer. REFOUT = 1 represents the current
contribution of the larger buffer without external load.
(3)
The temperature sensor is provided by the REF module. Its current is supplied via terminal AVCC and is equivalent to IREF+ with REFON
= 1 and REFOUT = 0.
(4)
Contribution only due to the reference and buffer including package. This does not include resistance due to PCB trace, etc.
(5)
Two decoupling capacitors, 10F and 100nF, should be connected to VREF to decouple the dynamic current required for an external
reference source if it is used for the ADC12_A. See also the MSP430x5xx Family User's Guide (SLAU208).
(6)
Calculated using the box method: (MAX(-40 to 85°C) – MIN(-40 to 85°C)) / MIN(-40 to 85°C)/(85°C – (–40°C)).
(7)
The condition is that the error in a conversion started after tREFON is less than ±0.5 LSB. The settling time depends on the external
capacitive load when REFOUT = 1.
60
Copyright 2010, Texas Instruments Incorporated
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