Datasheet

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SBAS314B − APRIL 2004 − REVISED JANUARY 2009
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6
TYPICAL CHARACTERISTICS
At T
A
= −40°C to +85°C, VDD = +5V, f
CLK
= 2MHz, and V
REF
= +2.5V, unless otherwise noted.
Figure 1
ANALOG CURRENT vs TEMPERATURE
Temperature (
_
C)
Current (
µ
A)
400
375
350
325
300
275
250
225
200
0
−
25
25 50 75 125
−
50
100
f
CLK
=4MHz,VDD=5V
f
CLK
=2MHz,VDD=3V
f
CLK
=4MHz,VDD=3V
f
CLK
=2MHz,VDD=5V
Buffer Off
Figure 2
f
CLK
=4MHz,VDD=5V
f
CLK
=2MHz,VDD=3V
f
CLK
=4MHz,VDD=3V
f
CLK
=2MHz,VDD=5V
Buffer On
ANALOG CURRENT vs TEMPERATURE
Current (
µ
A)
550
500
450
400
350
300
Temperature (
_
C)
0
−
25
25 50 75 125
−
50
100
Figure 3
ANALOG CURRENT vs SUPPLY VOLTAGE
Supply Voltage (V)
Current (
µ
A)
3.53.0 4.0 4.5 5.0 5.52.5
500
450
400
350
300
250
Buffer Off
Buffer On
f
CLK
=2MHz
f
CLK
=2MHz
f
CLK
=4MHz
f
CLK
=4MHz
Figure 4
TEMPERATURE SENSOR VOLTAGE vs TEMPERATURE
Temperature (
_
C)
Temperature Sensor Voltage (mV)
5
−
25 35 65 95 125
−
55
150
140
130
120
110
100
90
80
70
Figure 5
Input Voltage, V
IN
(V)
−
3
−
4
−
2
−
1012345
−
5
10
8
6
4
2
0
−
2
−
4
−
6
−
8
−
10
INL (ppm of FSR)
INTEGRAL NONLINEARITY vs INPUT VOLTAGE
−
40
_
C
+25
_
C
+85
_
C
f
CLK
=2MHz
Buffer Off
Figure 6
−
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
=2MHz
Buffer On
10
8
6
4
2
0
−
2
−
4
−
6
−
8
−
10
INL (ppm of FSR)
−
40
_
C
+25
_
C
+85
_
C