参数资料
型号: DDC118IRTCT
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 8-CH 20-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PQCC48
封装: GREEN, PLASTIC, QFN-48
文件页数: 33/35页
文件大小: 653K
代理商: DDC118IRTCT
DDC118
SBAS325B JUNE 2004 REVISED APRIL 2009
www.ti.com
7
TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, characterization done with Range 5 (250pC), AVDD = +5V, DVDD = 3V, VREF = +4.096V, and Low-Power Mode: TINT = 400s and CLK = 4MHz,
unless otherwise noted.
I
B vs TEMPERATURE
25
35
45
55
65
75
85
Temperature (
_C)
I B
(p
A
)
10
1
0.1
0.01
All Ranges
ANALOG SUPPLY CURRENT vs TEMPERATURE
25
20
15
10
5
0
40
15
10
35
60
85
Temperature (
_C)
C
u
rr
ent
(m
A
)
LowPower Mode
POWER CONSUMPTION HISTOGRAM
40
35
30
25
20
15
10
5
0
12.00
12.25
12.50
12.75
13.00
13.25
13.50
13.75
14.00
14.25
14.50
14.75
15.00
15.25
15.50
15.75
16.00
Power per Channel (mW)
O
c
u
re
nc
es
(%
)
LowPower Mode
Data collected
from multiple lots.
OFFSET DRIFT vs TEMPERATURE
25
35
45
55
65
75
85
Temperature (
_C)
Of
fs
e
t
D
ri
ft
(p
p
m
o
f
F
S
R
)
100
50
0
50
100
DIGITAL SUPPLY CURRENT vs TEMPERATURE
2.5
2.0
1.5
1.0
0.5
0
40
15
10
35
60
85
Temperature (
_C)
C
u
rr
ent
(m
A
)
DVDD = 3V
DVDD = 5V
LowPower Mode
OFFSET DRIFT HISTOGRAM AT ROOM TEMPERATURE
1200
1000
800
600
400
200
0
1.0
0.6
0.2
0.6
1.0
Offset Drift (ppm of FSR/minute)
Occ
u
re
n
c
e
s
Range 5
Repeated measurement
of offset drift over a
one minute interval.
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