Datasheet

-80
-85
-90
-95
-100
-105
-110
-115
-120
10k 100k 1M
InputFrequency,f (Hz)
IN
TotalHarmonicDistortion(dB)
V = 1dB-
IN
V = 6dB-
IN
V = 10dB-
IN
SFDR(dB)
InputFrequency,f (Hz)
IN
130
120
110
100
90
80
70
10k 100k 1M
V = -10dB
IN
V = -6dB
IN
V = -1dB
IN
Signal-to-NoiseRatio(dB)
InputCommon-ModeVoltage,V (V)
CM
93
92
91
90
89
88
87
86
85
1 1.4 1.8 2.2 2.6 3 3.4
f =10kHz,V = -1dB
IN IN
f =100kHz,V = -6dB
IN IN
f =100kHz,V = -1dB
IN IN
f =10kHz,V = -6dB
IN IN
TotalHarmonicDistortion(dB)
InputCommon-ModeVoltage,V (V)
CM
-70
-80
-90
-100
-110
1 1.4 1.8 2.2 2.6 3 3.4
f =10kHz,V = -1dB
IN IN
f =100kHz,V = -1dB
IN IN
f =10kHz,V = -6dB
IN IN
f =100kHz,V = -6dB
IN IN
3
2
1
0
-1
-2
-3
0 100 200 300 400 500 600 700 800 900 1000
TimeInterval(s)
Offset(LSB)
Spurious-FreeDynamicRange(dB)
InputCommon-ModeVoltage,V (V)
CM
1 1.4 1.8 2.2 2.6 3 3.4
110
105
100
95
90
85
80
f =100kHz,V = -6dB
IN IN
f =100kHz,V = -1dB
IN IN
f =10kHz,V = -6dB
IN IN
f =10kHz
IN
V = -1dB
IN
ADS1602
SBAS341E –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
= 40MHz, External V
REF
= +3V, V
CM
= +1.45V, and
R
BIAS
= 37kΩ, unless otherwise noted.
THD vs INPUT FREQUENCY SFDR vs INPUT FREQUENCY
Figure 21. Figure 22.
SNR vs INPUT COMMON-MODE VOLTAGE THD vs INPUT COMMON-MODE VOLTAGE
Figure 23. Figure 24.
SFDR vs INPUT COMMON-MODE VOLTAGE OFFSET DRIFT OVER TIME
Figure 25. Figure 26.
12 Copyright © 2004–2011, Texas Instruments Incorporated