TYPICAL PERFORMANCE CURVES (CONT)
T = +25°C, fS =600kHz, +VDIG = +VANA = +5V, –VANA = –5V, using internal reference and the 50Ω input resistor shown in Figure 4b, unless otherwise specified.
CODE TRANSITION NOISE
1
0.5
0
100
75
–0.5
–1
All Codes INL
50
0
512
1024
1536
2048
2560
3072
3584
4095
Decimal Code
25
0
1
0.5
0
0
0.25
0.5
0.75
1
–0.5
–1
Analog Input Voltage – Expected Code Center (LSBs)
All Codes DNL
0
512
1024
1536
2048
2560
3072
3584
4095
Decimal Code
D.C. PARAMETERS vs. TEMPERATURE
INTERNAL REFERENCE VOLTAGE vs TEMPERATURE
2.520
2
Offset Error
1
0
–1
–2
2.515
2.510
2.505
2.500
2.495
2.490
2.485
2.480
0.2
0.1
0
–0.1
–0.2
+FS Error
0.2
0.1
0
–FS Error
–0.1
–75 –50 –25
0
25
50
75
100 125 150
–0.2
Temperature (°C)
–75 –50 –25
0
25
50
75
100
125
150
Temperature (°C)
CONVERSION TIME (t7) vs TEMPERATURE
1500
1450
1400
1350
1300
1250
1200
1150
1100
1050
–75 –50 –25
0
25
50
75
100 125 150
Temperature (°C)
®
ADS7831
6