Datasheet

TotalHarmonicDistortion(dB)
ClockFrequency,f (MHz)
CLK
110
100
90
80
70
60
50
40
30
20
5 10 15 20 25 30 35 40 45 50
V = 6dBFS,f- =10kHz
IN IN
R =267kW
BIAS
R =210kW
BIAS
R =140kW
BIAS
R
BIAS
=100kW
R
BIAS
=30kW
R
BIAS
=60kW
R =37kW
BIAS
SNR(dB)
ClockFrequency,f (MHz)
CLK
5 10 15 20 25 30 35 40 45 50
100
90
80
70
60
50
40
30
V = 6dBFS,f- =10kHz
IN IN
R =210kW
BIAS
R =267kW
BIAS
R
BIAS
=140kW
R
BIAS
=100kW
R
BIAS
=60kW
R =37kW
BIAS
R =30kW
BIAS
SFDR(dB)
ClockFrequency,f (MHz)
CLK
110
100
90
80
70
60
50
40
30
20
5 10 15 20 25 30 35 40 45 50
V = 6dBFS,f- =10kHz
IN IN
R =267kW
BIAS
R =210kW
BIAS
R =140kW
BIAS
R
BIAS
=100kW
R
BIAS
=30kW
R
BIAS
=60kW
R =37kW
BIAS
1000
100
10
1
0.1
-3 -2 -1 30 1 2
InputDCVoltage(V)
RMSNoise(LSB)
1540
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
-4 -3 -2 -1 0 1 2 3 4
OutputCode(LSB)
Occurrences
V =0
IN
120
100
80
60
40
20
0
-40 -15 10 35 60 85
Temperature(°C)
Current(mA)
I
AVDD
( =low)REFEN
I
AVDD
( =high)REFEN
R =37k ,fW
BIAS CLK
=40MHz
I +I
DVDD IOVDD
ADS1602
www.ti.com SBAS341E –DECEMBER 2004– REVISED OCTOBER 2011
TYPICAL CHARACTERISTICS (continued)
All specifications at T
A
= +25°C, AVDD = 5V, DVDD = IOVDD = 3V, f
CLK
= 40MHz, External V
REF
= +3V, V
CM
= +1.45V, and
R
BIAS
= 37kΩ, unless otherwise noted.
SNR vs CLOCK FREQUENCY THD vs CLOCK FREQUENCY
Figure 27. Figure 28.
SFDR vs CLOCK FREQUENCY NOISE vs DC INPUT VOLTAGE
Figure 29. Figure 30.
NOISE HISTOGRAM POWER-SUPPLY CURRENT vs TEMPERATURE
Figure 31. Figure 32.
Copyright © 2004–2011, Texas Instruments Incorporated 13