Datasheet

THD(dB)
ClockFrequency, f (MHz)
CLK
0 5 10 15 20
V = f =
IN IN
-6dBFS, 10kHz
R =
BIAS
267kW
R =
BIAS
210kW
R =
BIAS
60kW
-80
-90
-100
-110
-120
R =
BIAS
140kW
SNR(dB)
ClockFrequency, f (MHz)
CLK
R =
BIAS
60kW
R =
BIAS
210kW
R =
BIAS
267kW
V = 6dBFS,fIN IN- =10kHz
0 5 10 15 20
100
95
90
85
80
75
70
R =
BIAS
140kW
1000
100
10
1
0.1
-3 -2 -1 30 1 2
InputDCVoltage(V)
RMSNoise(LSB)
SFDR(dB)
ClockFrequency, f (MHz)
CLK
R =
BIAS
60kW
R =
BIAS
140kW
R =
BIAS
267kW
V = f =
IN IN
6dBFS,- 10kHz
0 5 10 15 20
120
110
100
90
80
R =
BIAS
210kW
1500
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 =0V
IN
3
2
1
0
-1
-2
-3
-4
0 100 200 300 400 500 600 700 800 900 1000
TimeInterval(s)
Offset(LSB)
ADS1601
SBAS322D –DECEMBER 2004–REVISED OCTOBER 2011 www.ti.com
TYPICAL CHARACTERISTICS (continued)
All specifications at T
A
= +25°C, AVDD = 5V, DVDD = IOVDD = 3V, f
CLK
= 20MHz, V
REF
= +3V, V
CM
= +2.7V, and
R
BIAS
= 60kΩ, unless otherwise noted.
SIGNAL-TO-NOISE RATIO TOTAL HARMONIC DISTORTION
vs CLOCK FREQUENCY vs CLOCK FREQUENCY
Figure 21. Figure 22.
SPURIOUS-FREE DYNAMIC RANGE NOISE
vs CLOCK FREQUENCY vs DC INPUT VOLTAGE
Figure 23. Figure 24.
NOISE HISTOGRAM OFFSET DRIFT OVER TIME
Figure 25. Figure 26.
12 Copyright © 2004–2011, Texas Instruments Incorporated