Datasheet

ADS1202
7
SBAS275B
www.ti.com
TYPICAL CHARACTERISTICS (Cont.)
V
DD
= 5V, +In = –250mV to 250mV, –In = 0V, and MCLK = 10MHz, unless otherwise noted.
RMS NOISE vs INPUT VOLTAGE LEVEL
–320 –240 –80–160 0 24016080 320
Differential Input Voltage (mV)
RMS Noise (µV)
80
70
60
50
40
30
20
10
0
SIGNAL-TO-NOISE RATIO vs TEMPERATURE
–40 –20 200408060 100
Temperature (°C)
SNR (dB)
71.0
70.8
70.6
70.4
70.2
70.0
69.8
69.6
69.4
69.2
69.0
Mode 0
Mode 3
SIGNAL-TO-NOISE + DISTORTION
vs TEMPERATURE
–40 –20 200408060 100
Temperature (°C)
SINAD (dB)
71.0
70.6
70.2
69.8
69.4
69.0
Mode 0
Mode 3
EFFECTIVE NUMBER OF BITS
vs DECIMATION RATIO
10 100 1000 10000
Decimation Ratio (OSR)
ENOB
16
14
12
10
8
6
4
Sinc
3
Filter
Sinc
2
Filter
SPURIOUS-FREE DYNAMIC RANGE
AND TOTAL HARMONIC DISTORTION
vs TEMPERATURE (Mode 0)
–40 –20 200408060 100
Temperature (°C)
SFDR
THD
SFDR (dB)
THD (dB)
95
93
91
89
87
85
83
81
79
77
75
–95
–93
–91
–89
–87
–85
–83
–81
–79
–77
–75
0.5Vp-p
5kHz
SPURIOUS-FREE DYNAMIC RANGE
AND TOTAL HARMONIC DISTORTION
vs TEMPERATURE (Mode 3)
–40 –20 200408060 100
Temperature (°C)
SFDR
THD
SFDR (dB)
THD (dB)
95
93
91
89
87
85
83
81
79
77
75
–95
–93
–91
–89
–87
–85
–83
–81
–79
–77
–75