Datasheet

104
102
100
98
96
94
92
90
SNR(dBc)
0 10 20 30 40 50 60 70
R (k )W
BIAS
f =2.5MHz
CLK
f =10MHz
CLK
f =20MHz
CLK
f =10kHz,AIN= 0.6dBFS-
IN
115
110
105
100
|THD|(dBc)
5
10 15 20 25 30 35 40
45
50
55
60 65
R (k )W
BIAS
f =20MHz
CLK
f =10MHz
CLK
f =2.5MHz
CLK
f =10kHz,AIN= 0.5dBFS
IN
-
500
450
400
350
300
250
200
150
100
50
Power(mW)
5
10 15 20 25 30 35 40
45
50
55
60 65
R (k )W
BIAS
f =20MHz
CLK
f =10MHz
CLK
f =2.5MHz
CLK
f =10kHz,AIN= 0.5dBFS
IN
-
ADS1672
SBAS402D –JUNE 2008–REVISED JULY 2010 www.ti.com
TYPICAL CHARACTERISTICS (continued)
All specifications are at T
A
= –40°C to +85°C, AVDD = 5V, DVDD = 3V, f
CLK
= 20MHz, V
REF
= +3V, and R
BIAS
= 7.5kΩ, unless
otherwise noted.
|THD| SNR
vs R
BIAS
vs R
BIAS
Figure 18. Figure 19.
POWER
vs R
BIAS
Figure 20.
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