Datasheet

6
ADS1250
®
TYPICAL PERFORMANCE CURVES (Cont.)
At T
A
= +25°C, V
D
= V
S
= +5V, CLK = 9.6MHz, PGA = 1, and V
REF
= 4.096, unless otherwise specified.
30
20
10
0
–10
–20
–30
OFFSET DRIFT vs TEMPERATURE
Temperature (°C)
–60 –40 0–20 4020 60 10080
Offset Drift (ppm of FS)
PGA = 2
PGA = 2
PGA = 4
PGA = 1
PGA = 4
PGA = 8
PGA = 8
PGA = 1
400
200
0
–200
–400
GAIN DRIFT vs TEMPERATURE
Temperature (°C)
–60 –40 0–20 4020 60 10080
Gain Drift (ppm of FS)
PGA = 2
PGA = 4
PGA = 1
PGA = 8
PGA = 2
PGA = 4
PGA = 8
PGA = 1
20.0
18.0
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
ANALOG CURRENT vs TEMPERATURE
(PGA = 1)
Temperature (°C)
–60 –40 0–20 4020 60 10080
Analog Current (mA)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
DIGITAL CURRENT vs TEMPERATURE
(PGA = 1)
Temperature (°C)
–60 –40 0–20 4020 60 10080
Digital Current (mA)
100
90
80
70
60
POWER SUPPLY REJECTION RATIO
vs FREQUENCY
PGA = 8
Frequency (Hz)
1 10 100 1k 10k
PSRR (dB)
PGA = 4
PGA = 2
PGA = 1
COMMON-MODE REJECTION RATIO
vs FREQUENCY
120
115
110
105
100
PGA = 1
Frequency (Hz)
1 10 100 1000
CMRR (dB)
PGA = 2
PGA = 4
PGA = 8