Datasheet

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SBAS314B − APRIL 2004 − REVISED JANUARY 2009
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7
TYPICAL CHARACTERISTICS (continued)
At T
A
= −40°C to +85°C, VDD = +5V, f
CLK
= 2MHz, and V
REF
= +2.5V, unless otherwise noted.
Figure 7
Input Voltage, V
IN
(V)
−
3
−
4
−
2
−
1012345
−
5
15
10
5
0
−
5
−
10
−
15
INL (ppm of FSR)
INTEGRAL NONLINEARITY vs INPUT VOLTAGE
f
CLK
=4MHz
Buffer Off
−
40
_
C
+25
_
C
+85
_
C
Figure 8
−
1.5
−
2.5
−
0.5 0.5 1.5 2.5 3.5
−
3.5
INTEGRAL NONLINEARITY vs INPUT VOLTAGE
Input Voltage, V
IN
(V)
f
CLK
=4MHz
Buffer On
15
10
5
0
−
5
−
10
−
15
INL (ppm of FSR)
−
40
_
C
+25
_
C
+85
_
C
Figure 9
NOISE vs INPUT VOLTAGE
Input Voltage, V
IN
(V)
Noise (ppm of FSR, rms)
−
3
−
1135
−
5
2.5
2.0
1.5
1.0
0.5
0
f
CLK
=2MHz
Buffer Off
Figure 10
NOISE vs INPUT VOLTAGE
Input Voltage, V
IN
(V)
Noise (ppm of FSR, rms)
0.5 1.5 3.5
−
3.5
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
f
CLK
=2MHz
Buffer On
−
2.5
−
1.5
−
0.5 2.5
Figure 11
NOISE vs INPUT VOLTAGE
Input Voltage, V
IN
(V)
Noise (ppm of FSR, rms)
−
3
−
1135
−
5
2.5
2.0
1.5
1.0
0.5
0
f
CLK
=4MHz
Buffer Off
Figure 12
NOISE vs INPUT VOLTAGE
Noise (ppm of FSR, rms)
2.5
2.0
1.5
1.0
0.5
f
CLK
=4MHz
Buffer On
Input Voltage, V
IN
(V)
0.5 1.5 3.5
−
3.5
−
2.5
−
1.5
−
0.5
2.5