Datasheet

 
 
SBAS323G − JUNE 2004 − REVISED OCTOBER 2007
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20
TYPICAL CHARACTERISTICS (Continued)
AV
DD
= +5V, DV
DD
= +5V, f
OSC
= 8MHz, PGA = 1, f
MOD
= 15.625kHz, Bipolar, filter = Sinc
3
, Buffer ON, and V
REF
≡ (REF IN+) − (REF IN−) = +2.5V, unless otherwise
specified.
4500
4000
3500
3000
2500
2000
1500
1000
500
0
HISTOGRAM OF OUTPUT DATA
ppm of FS
−
2
Number of Occurrences
−
1.5
−
1
−
0.5 0 0.5 1 1.5 2
2.510
2.508
2.506
2.504
2.502
2.500
2.498
2.496
2.494
2.492
2.490
V
REFOUT
vs LOAD CURRENT
V
REFOUT
Current Load (mA)
0 0.4 0.8 1.2 1.6 2.0 2.4
V
REFOUT
(V)
DIGITAL SUPPLY CURRENT vs FREQUENCY
Clock Frequency (MHz)
Digital Supply Current (mA)
1 10 100
100
10
1
I
MAX
,DV
DD
=5V
I
MAX
,DV
DD
=3V
I
MIN
,DV
DD
=5V
I
MIN
,DV
DD
=3V
I
MIN
IDLE, DV
DD
=3V
I
MAX
IDLE, DV
DD
=5V
I
MIN
: PDCON = FFh, PSEN and ALE disabled, LVDCON = FFh
I
MAX
: PDCON = 00h, PSEN and ALE enabled, LVDCON = 00h
DIGITAL SUPPLY CURRENT vs CLOCK DIVIDER
Clock Frequency (MHz)
Digital Supply Current (mA)
110100
100
10
1
0.1
OFF
4
8
16
32
4096
1024
Divider Values
2048
2
DIGITAL SUPPLY CURRENT vs SUPPLY VOLTAGE
Supply Voltage (V)
Digital Supply Current (mA)
2.5 3.0 3.5 4.0 4.5 5.0 5.5
15
10
5
−
40
_
C
+125
_
C
+25
_
C
CMOS DIGITAL OUTPUT
Output Current (mA)
Output Voltage (V)
02010 4030 706050
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
3V
Low
Output
5V
Low
Output
5V
3V