ADS7864
www.ti.com
SBAS141A–SEPTEMBER 2000–REVISED MARCH 2005
TYPICAL CHARACTERISTICS (continued)
All specifications TA = +25°C, +VA = +VD = +5V, VREF = internal +2.5V and fCLK = 8MHz, fSAMPLE = 500kHz (unless otherwise
noted)
DIFFERENTIAL LINEARITY ERROR vs CODE
INTEGRAL LINEARITY ERROR vs CODE
2.0
1.5
1.0
0.5
0
1
0.75
0.5
Typical of All Six Channels
Typical of All Six Channels
0.25
0
−
−
−
−
−
0.25
0.5
1.0
1.5
2.0
−
0.5
−
0.75
−
1
800
000
7FF
800
000
7FF
Hex BTC Code
Hex BTC Code
Figure 11.
Figure 12.
INTEGRAL LINEARITY ERROR MATCH
vs TEMPERATURE
Channel A0/Channel C1
(Different Converter, Different Channels)
INTEGRAL LINEARITY ERROR vs TEMPERATURE
−
−
−
−
−
−
−
0.02
0.03
0.04
0.05
0.06
0.07
0.08
2.0
1.6
1.2
0.8
0.4
0
Positive ILE
Negative ILE
−
0.4
0.8
1.2
1.6
2.0
−
−
−
−
−
−
20
40
0
20
40
60
80
40
20
0
20
40
60
80
_
_
Temperature ( C)
Temperature ( C)
Figure 13.
Figure 14.
9
TI [ TEXAS INSTRUMENTS ]
