Datasheet


SBAS286C − JUNE 2003 − REVISED JANUARY 2009
www.ti.com
7
TYPICAL CHARACTERISTICS (CONTINUED)
At T
A
= −40°C to +85°C, AVDD = +5V, DVDD = +5V, f
CLK
= 2MHz, and V
REF
= +2.5V, unless otherwise noted.
Figure 7
INTEGRAL NONLINEARITY vs INPUT VOLTAGE
Input Voltage, V
IN
(V)
INL (% of FSR)
−
3
−
4
−
2
−
1012345
−
5
0.0006
0.0004
0.0002
0
−
0.0002
−
0.0004
−
0.0006
−
0.0008
−
0.0010
−
40
_
C
f
CLK
=2MHz
Buffer Off
+25
_
C
+85
_
C
Figure 8
−
1.5
−
2.5
−
0.5 0.5 1.5 2.5 3.5
−
3.5
0.0010
0.0008
0.0006
0.0004
0.0002
0
−
0.0002
−
0.0004
−
0.0006
−
0.0008
−
0.0010
−
40
_
C
+25
_
C
+85
_
C
INTEGRAL NONLINEARITY vs INPUT VOLTAGE
f
CLK
=2MHz
Buffer On
Input Voltage, V
IN
(V)
INL (% of FSR)
Figure 9
−
3
−
4
−
2
−
10 1 2 3 4 5
−
5
0.0015
0.0010
0.0005
0
−
0.0005
−
0.0010
−
0.0015
−
40
_
C
+25
_
C
+85
_
C
INTEGRAL NONLINEARITY vs INPUT VOLTAGE
f
CLK
=4MHz
Buffer Off
Input Voltage, V
IN
(V)
INL (% of FSR)
Figure 10
−
1.5
−
2.5
−
0.5 0.5 1.5 2.5 3.5
−
3.5
0.0015
0.0010
0.0005
0
−
0.0005
−
0.0010
−
0.0015
−
40
_
C
+25
_
C
+85
_
C
INTEGRAL NONLINEARITY vs INPUT VOLTAGE
f
CLK
=4MHz
Buffer On
Input Voltage, V
IN
(V)
INL (% of FSR)
Figure 11
NOISE vs INPUT VOLTAGE
Input Voltage, V
IN
(V)
Noise (ppm of FSR, rms)
−
3.5
−
3.0
−
2.5
−
2.0
−
1.5
−
1.0
−
0.5
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5
1.5
1.0
0.5
0
f
CLK
=2MHz
Buffer On
Figure 12
NOISE vs INPUT VOLTAGE
Input Voltage, V
IN
(V)
Noise (ppm of FSR, rms)
−
3
−
1135
−
5
1.5
1.0
0.5
0
f
CLK
=2MHz
Buffer Off