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SBAS341B − DECEMBER 2004 − REVISED APRIL 2005
TYPICAL CHARACTERISTICS (continued)
All specifications at T = 25°C, AVDD = 5V, DVDD = IOVDD = 3V, f
unless otherwise noted.
= 40MHz, External V = +3V, V
REF CM
= +1.45V, and R = 37kΩ,
BIAS
A
CLK
SUPPLY−CURRENT vs CLOCK FREQUENCY
140
ANALOG SUPPLY CURRENT vs RBIAS
130
110
90
− Ω
= 6dBFS, fIN = 10kHz, RBIAS = 37k
VIN
−
= 6dBFS, fIN = 10kHz, fCLK = 40MHz
VIN
120
100
80
60
40
20
0
IAVDD (REFEN = low)
70
IAVDD (REFEN = high)
IAVDD (REFEN = low)
IAVDD (REFEN = high)
50
IIOVDD + IDVDD
30
10
0
5
10
15
20
25
30
35
40
0
50
100
150
200
250
300
Ω
RBIAS (k )
Clock Frequency, fCLK (MHz)
Figure 33
Figure 34
SIGNAL−TO−NOISE RATIO vs TEMPERATURE
TOTAL HARMONIC DISTORTION vs TEMPERATURE
100
95
90
85
80
75
70
−
−
−
−
80
85
90
95
−
VIN
=
1dB
−
−
VIN
VIN
=
=
1dB
−
VIN
=
6dB
−
= 10dB
VIN
6dB
−
10dB
VIN
=
−
−
100
105
fIN = 100kHz
−
−
15
40
10
35
60
85
−
−
15
40
10
35
60
85
_
Temperature ( C)
_
Temperature ( C)
Figure 35
Figure 36
SPURIOUS−FREE DYNAMIC RANGE
vs TEMPERATURE
120
115
110
105
100
95
−
= 10dB
VIN
−
= 6dB
VIN
90
−
VIN
=
1dB
85
80
−
−
40
15
10
35
60
85
_
Temperature ( C)
Figure 37
14
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