Datasheet

MSP430F47x3, MSP430F47x4
MIXED SIGNAL MICROCONTROLLER
SLAS545C − MAY 2007 − REVISED MARCH 2011
50
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
SD16_A, built-in voltage reference
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
V
REF
Internal reference
voltage
SD16REFON = 1, SD16VMIDON = 0 3 V 1.14 1.20 1.26 V
I
REF
Reference supply
current
SD16REFON = 1, SD16VMIDON = 0 3 V 175 260 μA
TC Temperature coefficient SD16REFON = 1, SD16VMIDON = 0 (see Note 1) 3 V 18 50 ppm/K
C
REF
V
REF
load capacitance SD16REFON = 1, SD16VMIDON = 0 (see Note 2) 100 nF
I
LOAD
V
REF(I)
maximum load
current
SD16REFON = 1, SD16VMIDON = 0 3 V ±200 nA
t
ON
Turn on time
SD16REFON = 0−>1, SD16VMIDON = 0,
C
REF
= 100nF
3 V 5 ms
DC PSR
DC Power Supply
Rejection ΔV
REF
/ΔV
CC
SD16REFON = 1, SD16VMIDON = 0,
V
CC
= 2.5V - 3.6V
100 uV/V
NOTES: 1. Calculated using the box method: (MAX(-40...85°C) − MIN(-40...85°C)) / MIN(−40...85°C) / (85°C − (-40°C))
2. There is no capacitance required on V
REF
. However, a capacitance of at least 100nF is recommended to reduce any reference
voltage noise.
SD16_A, reference output buffer
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
V
REF, BUF
Reference buffer output
voltage
SD16REFON = 1, SD16VMIDON = 1 3 V 1.2 V
I
REF, BUF
Reference Supply +
Reference output buffer
quiescent current
SD16REFON = 1, SD16VMIDON = 1 3 V 385 600 μA
C
REF(O)
Required load
capacitance on V
REF
SD16REFON = 1, SD16VMIDON = 1 470 nF
I
LOAD, Max
Maximum load current
on V
REF
SD16REFON = 1, SD16VMIDON = 1 3 V ±1 mA
Maximum voltage
variation vs. load current
|I
LOAD
| = 0 to 1mA 3 V −15 +15 mV
t
ON
Turn on time
SD16REFON = 0−>1, SD16VMIDON = 0−>1,
C
REF
= 470nF
3 V 100 μs
SD16_A, external reference input
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
V
REF(I)
Input voltage range SD16REFON = 0 3 V 1.0 1.25 1.5 V
I
REF(I)
Input current SD16REFON = 0 3 V 50 nA