ADS1255
ADS1256
www.ti.com
SBAS288D − JUNE 2003 − REVISED AUGUST 2004
TYPICAL CHARACTERISTICS
TA = +25°C, AVDD = 5V, DVDD = 1.8V, fCLKIN = 7.68MHz, PGA = 1, and VREF = 2.5V, unless otherwise noted.
OFFSET DRIFT HISTOGRAM
25
PGA = 1
20
Percent of Population
Percent of Population
90 Units from 3 Production Lots
25
20
15
10
5
0
−500
−
450
−400
−350
−300
−250
−200
−150
−
100
−50
0
50
100
150
200
250
300
350
400
450
500
−20
−
18
−16
−14
−12
−10
−8
−6
−
4
−2
0
2
4
6
8
10
12
14
16
18
20
Offset Drift (nV/_C)
GAIN ERROR HISTOGRAM
25
PGA = 1
25
Percent of Population
20
15
10
5
0
Percent of Population
90 Units from 3 Production Lots
20
PGA = 64
90 Units from 3 Production Lots
15
10
5
25
PGA = 1
20
Percent of Population
Percent of Population
90 Units from 3 Production Lots
20
PGA = 64
90 Units from 3 Production Lots
15
10
5
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
Gain Drift (ppm/_C)
−0.060
−
0.057
−0.054
−0.051
−0.048
−0.045
−0.042
−0.039
−
0.036
−0.033
−0.030
−
0.027
−0.024
−0.021
−0.018
−0.015
−0.012
−0.009
−
0.006
−0.003
0
Gain Error (%)
GAIN DRIFT HISTOGRAM
0
30
PGA = 64
90 Units from 3 Production Lots
OFFSET DRIFT HISTOGRAM
15
10
5
0
Offset Drift (nV/_C)
GAIN ERROR HISTOGRAM
30
25
15
10
5
0
8
−0.0100
−
0.0095
−0.0090
−0.0085
−0.0080
−0.0075
−0.0070
−0.0065
−
0.0060
−0.0055
−0.0050
−
0.0045
−0.0040
−0.0035
−0.0030
−0.0025
−0.0020
−0.0015
−
0.0010
−0.0005
0
Gain Error (%)
GAIN DRIFT HISTOGRAM
Gain Drift (ppm/_C)
BURR-BROWN [ BURR-BROWN CORPORATION ]
