English
Language : 

MSP430FE42X_10 Datasheet, PDF (30/51 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER
◁
MSP430FE42x
MIXED SIGNAL MICROCONTROLLER
SLAS396C − JULY 2003 − REVISED OCTOBER 2008
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
ESP430CE1, SD16 built-in voltage reference
VREF
PARAMETER
Internal reference
voltage
TEST CONDITIONS
SD16REFON = 1, SD16VMIDON = 0
VCC MIN TYP MAX UNIT
3 V 1.14 1.20 1.26 V
Reference supply
IREF
current
SD16REFON = 1, SD16VMIDON = 0
3V
175 260 µA
TC
Temperature
coefficient
SD16REFON = 1, SD16VMIDON = 0 (see Note 1)
3V
20
50 ppm/K
CREF
VREF load
capacitance
SD16REFON = 1, SD16VMIDON = 0 (see Note 2)
100
nF
ILOAD
VREF(I) maximum
load current
SD16REFON = 0, SD16VMIDON = 0
3V
±200 nA
tON
Turn-on time
SD16REFON = 0 → 1, SD16VMIDON = 0, CREF = 100 nF 3 V
5
ms
DC PSR
DC power supply
rejection,
∆VREF/∆VCC
SD16REFON = 1, SD16VMIDON = 0, VCC = 2.5 V to 3.6 V
200
µV/V
NOTES: 1. Calculated using the box method: (MAX(−40...85°C) − MIN(−40...85°C)) / MIN(−40...85°C) / (85 − (−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.
ESP430CE1, SD16 reference output buffer
PARAMETER
TEST CONDITIONS
VCC
Reference buffer
VREF,BUF
output voltage
SD16REFON = 1, SD16VMIDON = 1
3V
Reference supply +
IREF,BUF
reference output
buffer quiescent
SD16REFON = 1, SD16VMIDON = 1
3V
current
CREF(O)
Required load
capacitance on
VREF
SD16REFON = 1, SD16VMIDON = 1
ILOAD,Max
Maximum load
current on VREF
SD16REFON = 1, SD16VMIDON = 1
3V
Maximum voltage
variation vs load
|ILOAD| = 0 to 1mA
3V
current
tON
Turn-on time
SD16REFON = 0 → 1, SD16VMIDON = 1, CREF = 470 nF 3 V
MIN TYP MAX
1.2
385 600
470
±1
−15
+15
100
UNIT
V
µA
nF
mA
mV
µs
ESP430CE1, SD16 external reference input
PARAMETER
TEST CONDITIONS
VREF(I)
IREF(I)
Input voltage range SD16REFON = 0
Input current
SD16REFON = 0
VCC MIN TYP MAX UNIT
3V
1.0 1.25 1.5 V
3V
50 nA
30
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
 ▷