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MSP430FG47X Datasheet, PDF (45/91 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER
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MSP430FG47x
MIXED SIGNAL MICROCONTROLLER
SLAS580D -- OCTOBER 2008 -- REVISED MARCH 2011
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
SD16_A, built-in voltage reference
VREF
PARAMETER
Internal reference
voltage
TEST CONDITIONS
SD16REFON = 1, SD16VMIDON = 0
VCC
MIN TYP MAX UNIT
3V
1.14 1.20 1.26 V
IREF
Reference supply
current
SD16REFON = 1, SD16VMIDON = 0
3V
175 260 A
TC
CREF
ILOAD
Temperature coefficient SD16REFON = 1, SD16VMIDON = 0 (see Note 1)
3V
VREF load capacitance SD16REFON = 1, SD16VMIDON = 0 (see Note 2)
VREF(I) maximum load
current
SD16REFON = 1, SD16VMIDON = 0
3V
18
50 ppm/K
100
nF
200 nA
tON
PSRR
NOTES:
Turn on time
SD16REFON = 0-->1, SD16VMIDON = 0,
CREF = 100nF
3V
5
ms
Line regulation
SD16REFON = 1, SD16VMIDON = 0
3V
100
uV/V
1. Calculated using the box method: (MAX(--40...85_C) -- MIN(--40...85_C))/MIN(--40...85_C)/(85C -- (--40_C))
2. There is no capacitance required on VREF. However, a capacitance of at least 100nF is recommended to reduce any reference
voltage noise.
SD16_A, reference output buffer
PARAMETER
TEST CONDITIONS
VREF,BUF
Reference buffer output
voltage
SD16REFON = 1, SD16VMIDON = 1
IREF,BUF
Reference Supply +
Reference output buffer
quiescent current
SD16REFON = 1, SD16VMIDON = 1
CREF(O)
ILOAD,Max
Required load
capacitance on VREF
Maximum load current
on VREF
Maximum voltage
variation vs load current
SD16REFON = 1, SD16VMIDON = 1
SD16REFON = 1, SD16VMIDON = 1
|ILOAD| = 0 to 1mA
tON
Turn on time
SD16REFON = 0-->1, SD16VMIDON = 1,
CREF = 470nF
VCC MIN TYP MAX UNIT
3V
1.2
V
3V
385 600 A
470
nF
3V
1 mA
3V
--15
+15 mV
3V
100
s
SD16_A, external reference input
PARAMETER
TEST CONDITIONS
VREF(I)
IREF(I)
Input voltage range
Input current
SD16REFON = 0
SD16REFON = 0
VCC MIN TYP MAX UNIT
3V
1.0 1.25 1.5 V
3V
50 nA
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