Datasheet

ADS8345
SBAS177C
9
www.ti.com
TYPICAL CHARACTERISTICS: +2.7V (Cont.)
At T
A
= +25°C, +V
CC
= +2.7V, V
REF
= +1.25V, f
SAMPLE
= 100kHz, and f
DCLK
= 24 • f
SAMPLE
= 2.4MHz, unless otherwise noted.
CHANGE IN GAIN vs TEMPERATURE
–50 –25 0 25 50 75 100
Temperature (°C)
Delta from 25°C (LSBs)
1.0
0.5
0
–0.5
WORST-CASE CHANNEL-TO-CHANNEL
BPZ MATCH vs TEMPERATURE
–50 –25 0 25 50 75 100
Temperature (°C)
BPZ Match (LSBs)
1.0
0.9
0.8
0.7
0.6
0.5
WORST-CASE CHANNEL-TO-CHANNEL
GAIN MATCH vs TEMPERATURE
–50 –25 0 25 50 75 100
Temperature (°C)
Gain Match (LSBs)
0.35
0.30
0.25
0.20
COMMON-MODE REJECTION vs FREQUENCY
0.1 1 10 100
Frequency (kHz)
CMRR (dB)
80
70
60
50
40
V
CM
= 1Vp-p Sinewave Centered Around V
REF
POWER-DOWN SUPPLY CURRENT
vs TEMPERATURE
–50 –25 0 25 50 75 100
Temperature (°C)
Supply Current (nA)
140
120
100
80
60
40
20
0
External Clock Disabled
SUPPLY CURRENT vs V
SS
2.5 3.0 3.5 4.0 4.5 5.0
+V
SS
(V)
Supply Current (mA)
1.5
1.4
1.3
1.2
1.1
1.0
0.9
f
SAMPLE
= 100kHz