DDC118 Datasheet, PDF (7/30 Pages) Burr-Brown (TI) – Octal Current Input 20-Bit Analog-To-Digital Converter

DDC118
www.ti.com
SBAS325A − JUNE 2004 − REVISED JUNE 2005
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 = 400µs and CLK = 4MHz,
unless otherwise noted.
10
All Ranges
I_B vs TEMPERATURE
1
0.1
0.01
25
35
45
55
65
75
85
Temperature (_ C)
OFFSET DRIFT vs TEMPERATURE
100
50
0
−50
−100
25
35
45
55
65
Temperature (_ C)
75
85
ANALOG SUPPLY CURRENT vs TEMPERATURE
25
Low−Power Mode
20
15
10
5
0
−40
−15
10
35
60
85
Temperature (_C)
POWER CONSUMPTION HISTOGRAM
40
Data collected
35 from multiple lots.
Low−Power Mode
30
25
20
15
10
5
0
Power per Channel (mW)
DIGITAL SUPPLY CURRENT vs TEMPERATURE
2.5
Low−Power Mode
DVDD = 5V
2.0
1.5
DVDD = 3V
1.0
0.5
0
−40
−15
10
35
60
85
Temperature (_C)
1200
1000
OFFSET DRIFT HISTOGRAM AT ROOM TEMPERATURE
Repeated measurement
of offset drift over a
one minute interval.
Range 5
800
600
400
200
0
−1.0
−0.6
−0.2
0.2
0.6
1.0
Offset Drift (ppm of FSR/minute)
7