-
0.5
Input Common-Mode Voltage (V)
14
12
10
8
6
4
2
0
RMSNoise(
V)
m
14
12
10
8
6
4
2
0
INL(ppmofFSR)
5.5
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Linearity
Noise
-
40
-
20
0
20
40
60
80
100
T
°
emperature ( C)
12
10
8
6
4
2
0
RMSNoise(
V)
m
120 125
High-Speed Mode
High-Resolution Mode
Low-Speed Mode
Low-Power Mode
0
0.5
V
(V)
REF
12
10
8
6
4
2
0
Noise(
V)
m
3.5
1.0
1.5
2.0
2.5
3.0
See
for
Electrical Characteristics
V
Operating Range.
REF
Low-Power
High-Speed
Low-Speed
High-Resolution
10k
100k
CLK (Hz)
0
-
20
-
40
-
60
-
80
-
100
-
120
-
140
THD(dB)
14
12
10
8
6
4
2
0
NoiseRMS(
V)
m
100M
1M
10M
High-Speed Mode
f
> 32.768MHz: V
= 2.048V, DVDD = 2.1V
THD: A
= f
/5120, 0.5dBFS
CLK
REF
IN
CLK
-
Noise: Shorted Input
Noise
THD
10
100
1k
Input Frequency (Hz)
0
-
20
-
40
-
60
-
80
-
100
-
120
Common-ModeRejection(dB)
10k
100k
1M
10
100
1k
Power-Supply Modulation Frequency (Hz)
0
-
20
-
40
-
60
-
80
-
100
-
120
P
ower
-SupplyRejection(dB)
10k
100k
1M
AVDD
IOVDD
DVDD
SBAS367F
–
JUNE 2007
–
REVISED FEBRUARY 2011
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25
°
C, High-Speed mode, AVDD = +5V, DVDD = +1.8V, IOVDD = +3.3V, f
CLK
= 27MHz, VREFP = 2.5V, and
VREFN = 0V, unless otherwise noted.
NOISE AND LINEARITY
vs INPUT COMMON-MODE VOLTAGE
NOISE vs TEMPERATURE
Figure 43.
Figure 44.
TOTAL HARMONIC DISTORTION AND NOISE
NOISE vs REFERENCE VOLTAGE
vs CLK
Figure 45.
Figure 46.
COMMON-MODE REJECTION
POWER-SUPPLY REJECTION
vs INPUT FREQUENCY
vs POWER-SUPPLY FREQUENCY
Figure 47.
Figure 48.
©
2007
–
2011, Texas Instruments Incorporated
17
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