Datasheet

MSP430F42x0
MIXED SIGNAL MICROCONTROLLER
SLAS455D − MARCH 2005 − REVISED APRIL 2007
28
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
SD16_A, power supply and recommended operating conditions
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
AV
CC
Analog supply
voltage
AV
CC
= DV
CC
AV
SS
= DV
SS
= 0V
2.5 3.6 V
SD16LP
=
0,
SD16BUFx = 00; GAIN: 1,2 3 V 650 950
SD16LP
=
0
,
f
SD16
= 1 MHz,
SD16BUFx = 00; GAIN: 4,8,16 3 V 730 1100
f
SD16
1
MHz,
SD16OSR = 256
SD16BUFx = 00; GAIN: 32 3 V 1050 1550
I
Analog supply
current including
SD16LP = 1,
f 0 5 MHz
SD16BUFx = 00; GAIN: 1 3 V 620 930
A
I
SD16
current including
internal reference
f
SD16
= 0.5 MHz,
SD16OSR = 256
SD16BUFx = 00; GAIN: 32 3 V 700 1060
μA
SD16LP
=
0,
SD16BUFx = 01; GAIN: 1 3 V 850
SD16LP
=
0
,
f
SD16
= 1 MHz,
SD16BUFx = 10; GAIN: 1 3 V 1130
f
SD16
1
MHz,
SD16OSR = 256
SD16BUFx = 11; GAIN: 1 3 V 1130
f
Analog front-end
input clock
SD16LP = 0 (Low power mode disabled) 3 V 0.03 1 1.1
MHz
f
SD16
input clock
frequency
SD16LP = 1 (Low power mode enabled) 3 V 0.03 0.5
MHz
SD16_A, input range
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
V
Differential full scale
Bipolar Mode, SD16UNI = 0 −V
REF
/2GAIN +V
REF
/2GAIN mV
V
ID,FSR
Differential
full
scale
input voltage range
Unipolar Mode, SD16UNI = 1 0 +V
REF
/2GAIN mV
SD16GAINx = 1 ±500
Differential input
SD16GAINx = 2 ±250
V
Differential
input
voltage range for
specified
SD16REFON 1
SD16GAINx = 4 ±125
mV
V
ID
specified
performance
SD16REFON=1
SD16GAINx = 8 ±62
mV
performance
(see Note 1)
SD16GAINx = 16 ±31
(see
Note
1)
SD16GAINx = 32 ±15
f
SD16
= 1MHz,
SD16GAINx = 1 3 V 200
kΩ
Z
Input impedance
(one input pin
f
SD16
1MHz,
SD16BUFx = 00
SD16GAINx = 32 3 V 75
kΩ
Z
I
(one input pin
to AV
SS
)
f
SD16
= 1MHz,
SD16BUFx = 01
SD16GAINx = 1 3 V >10 MΩ
f
SD16
= 1MHz,
SD16GAINx = 1 3 V 300 400
kΩ
Z
Differential
Input impedance
f
SD16
1MHz,
SD16BUFx = 00
SD16GAINx = 32 3 V 100 150
kΩ
Z
ID
Input impedance
(IN+ to IN−)
f
SD16
= 1MHz,
SD16BUFx > 00
SD16GAINx = 1 3 V >10 MΩ
V
Absolute input
SD16BUFx = 00 AV
SS
-0.1V AV
CC
V
V
I
Absolute
input
voltage range
SD16BUFx > 00 AV
SS
AV
CC
−1.2V
V
V
Common-mode
SD16BUFx = 00 AV
SS
-0.1V AV
CC
V
V
IC
Common mode
input voltage range
SD16BUFx > 00 AV
SS
AV
CC
−1.2V
V
NOTES: 1. The analog input range depends on the reference voltage applied to V
REF
. If V
REF
is sourced externally, the full-scale range
is defined by V
FSR+
= +(V
REF
/2)/GAIN and V
FSR−
= −(V
REF
/2)/GAIN. The analog input range should not exceed 80% of
V
FSR+
or V
FSR−
.